185s stright pipe jetting

[Truck Norris]

Im straight piping my 185s. My plan is to replace the muffler with some chrome pipe the same length as the stock muffler. Im also going to delete the air box and run a uni filter with a pre filter.

With this setup i know it will loose bottom end and not run right unless i get the carb adjusted accordingly. Ive searched the forum but cant find much about what i need to know. I saw that one guy has a straight piped 185s and is running a 200x ebay carb on it. Other than that i cant find much about the subject.

Honestly if buying the 200x carb is all i need to do id be thrilled but i will definently rejet and adjust the carb i have if that wont work.
Any input is greatly apreciated

[RapidRick]

I think I went up one size on the main and one step richer on the needle. Try just the needle first and check your plug.

[effort=results]

please post some pics and the tuning you found ! so is the like a big diesel tip?

[Truck Norris]

please post some pics and the tuning you found ! so is the like a big diesel tip?

What are you talking about? Looking for help not sarcasm or to get talked out of a straight pipe.

[Truck Norris]

Ok will do. What am i looking for on the plug?

[RapidRick]

Light grey, no black soot like it's running too rich.

[Truck Norris]

Come on i know theres guys running straight pipes! Whats your set up.

So far all i have messed with carb wise is i screwed out the pilot screw some. Still runs pretty crappy but that seemed to help somewhat. I had to turn the idle up when i screwed that out.

Sorry to sound dumb but what way should i move the fuel needle to run richer a notch above or below the factory preset?

[Jmoozy27]

Move the clip lower for more fuel. It makes the needle sit higher and increases the fuel flow.

[effort=results]

What are you talking about? Looking for help not sarcasm or to get talked out of a straight pipe.

I wasnt being sarcastic. I was just guessing on how u were straight piping. I want to build a pipe for one of my 110s and one of my thoughts is using car exhaust pipe,same size pipe washers for caps on pipe ,and a chrome exhaust tip headn out back in the middle of frame. So chill. I asked for pics cause id like to see what u do. Dang.

[El Camexican]

A straight pipe might be a little difficult to jet for across the board. I'd shoot for the correct main jet and settle for a rich everywhere else.

[Truck Norris]

I wasnt being sarcastic. I was just guessing on how u were straight piping. I want to build a pipe for one of my 110s and one of my thoughts is using car exhaust pipe,same size pipe washers for caps on pipe ,and a chrome exhaust tip headn out back in the middle of frame. So chill. I asked for pics cause id like to see what u do. Dang.

The pipe im using is 1 1/4. I feel like if back pressure is as important as some of these guys say then that will have more than a larger car exhaust would.

[Jmoozy27]

I wasnt being sarcastic. I was just guessing on how u were straight piping. I want to build a pipe for one of my 110s and one of my thoughts is using car exhaust pipe,same size pipe washers for caps on pipe ,and a chrome exhaust tip headn out back in the middle of frame. So chill. I asked for pics cause id like to see what u do. Dang.

Truck has been taking a lot of shiit over this pipe. Roll with it, brother!!!! Make that 185 scream!!!!

[Yamawheeler]

I'm running a straight pipe style. With a stinger muffler on my ytm 200 doesn't start the best but runs good. Plus I need to fine tune it a bit then it would run better. I also have a 115 main jet instead of a 112 used 1/14" exhaust to put it together

[Yamawheeler]

http://tapatalk.imageshack.com/v2/15/03/25/b417b4ba0a9532172996d2494777f1c9.jpg
There it is.

[onformula1]

Since you are defiantly going straight.

Have you thought about just running a Zoomie?

[effort=results]

Ive seen some guys run a straight pipe but made a end cap with a washer and the had welded small diameter pipe to it and would cut that down to "tune" the back pressure in. Maybe give that a try. And keep an eye on plug color.

[Louis Mielke]

You won't find a lot of people who will encourage you with this. Noise is #1 reason we're loosing riding areas. You won't find many supporters.

[Truck Norris]

Since you are defiantly going straight.

Have you thought about just running a Zoomie?

Whats a zoomie?

[Truck Norris]

You won't find a lot of people who will encourage you with this. Noise is #1 reason we're loosing riding areas. You won't find many supporters.

Its not any louder than a 450 race quad...

And also where i live in nevada there is more public land than private its not like im gonna be screaming around in some "designated riding area" or a track or anything. Just cruzing the desert

[Truck Norris]

I'm running a straight pipe style. With a stinger muffler on my ytm 200 doesn't start the best but runs good. Plus I need to fine tune it a bit then it would run better. I also have a 115 main jet instead of a 112 used 1/14" exhaust to put it together

Stock mine has a 98 main jet. A 200x takes a 110 i was thinking of trying that but not sure if thats to much of a jump

[Scootertrash]

Truck has been taking a lot of shiit over this pipe. Roll with it, brother!!!! Make that 185 scream!!!!

He hasn't been taking a lot of sh!t over it. He's been told the truth, he just doesn't want to listen. He has his heart set on making a lot of noise so he can "feel" like he's gained some "power". The fact is your best performance won't come out of a straight pipe.

Every kid goes thru it and some never grow out of it: Straight pipes!!!! FTMFW!!!! Wut? I can't hear you........

[oscarmayer]

if you do not have something to provide some backpressure, your going to not enjoy riding it. you will not get it to idle properly nor have any mid range at all. you have to have some sort of back pressure for it to function properly. washer at the end works. but your better off getting a nice muffler. no muffler at all defiantly is way to loud and will run like poop. jetting will not change from just removing a muffler on the main jet. the idle jet, good luck trying to get it to stay running at an idle for long. it will be erratic as it heats and cools. I know I have tried this before. Supertrap muffler on a nice pipe is your best option.

[Scootertrash]

Stock mine has a 98 main jet. A 200x takes a 110 i was thinking of trying that but not sure if thats to much of a jump

You can keep asking what others put in their machines and keep throwing darts or you can buy a bunch of jets and then go here and follow the jetting procedure:
http://www.3wheelerworld.com/showthread.php/55086-Carb-Jetting-101-Terms-Tips-and-Jetting-Theory

It's been said multiple times in this forum: Every machine is different. What works for others won't necessarily work for you.

You want to play the straight pipe game? You need to do the work to tune it right. You've completely eliminated any factory designed restrictions for the intake of air, somewhat overloading the stock intake passage and camshaft that limits how much incoming air can get to the cylinder, then trying to force it out of a factory designed stock exhaust pipe that has also had any type of factory designed (to work with the factory airbox and cam) flow characteristics removed.

Nobody is trying to ruin your fun, we're trying to help you get the best all around performance out of your machine. Have fun tuning.

[Scootertrash]

if you do not have something to provide some backpressure, your going to not enjoy riding it. you will not get it to idle properly nor have any mid range at all. you have to have some sort of back pressure for it to function properly. washer at the end works. but your better off getting a nice. no muffler at all defiantly is way to loud and will run like poop. jetting will not change from just removing a muffler on the main jet. the idle jet, good luck trying to get it to stay running at an idle for long. it will be erratic as it heats and cools. I know I have tried this before. Supertrap muffler on a nice pipe is your best option.

213035 :lol: :lol: :lol:

[Jmoozy27]

He hasn't been taking a lot of sh!t over it. He's been told the truth, he just doesn't want to listen. He has his heart set on making a lot of noise so he can "feel" like he's gained some "power". The fact is your best performance won't come out of a straight pipe.

Every kid goes thru it and some never grow out of it: Straight pipes!!!! FTMFW!!!! Wut? I can't hear you........

You can lead a horse to water, but that doesn't mean he will drink... And when a horse doesn't drink you run his asss. Just let him ruin his shiit. The next thread will be: "How to unfack a 185s motor" 1st reply: remove the straight pipe... :lol:

[Truck Norris]

I went to a 110 main jet and dropped the needle clip one notch. I havnt done a plug chop yet but rode it around the yard and its way better. before it was backfiring like crazy and now it doesnt at all and it seems just as peppy as ever. Ill post pics of the exhaust and intake later.

[Truck Norris]

You can keep asking what others put in their machines and keep throwing darts or you can buy a bunch of jets and then go here and follow the jetting procedure:
http://www.3wheelerworld.com/showthread.php/55086-Carb-Jetting-101-Terms-Tips-and-Jetting-Theory

It's been said multiple times in this forum: Every machine is different. What works for others won't necessarily work for you.

You want to play the straight pipe game? You need to do the work to tune it right. You've completely eliminated any factory designed restrictions for the intake of air, somewhat overloading the stock intake passage and camshaft that limits how much incoming air can get to the cylinder, then trying to force it out of a factory designed stock exhaust pipe that has also had any type of factory designed (to work with the factory airbox and cam) flow characteristics removed.

Nobody is trying to ruin your fun, we're trying to help you get the best all around performance out of your machine. Have fun tuning.


Thank you for this link. This was the most helpful post on the thread so far.

The plug chop directions are a little vague. Is this to be done with the engine cold or do i let it warm up? And is revving it up in neutral the way its done or am i supposed to ride it?

[thcowboy]

Thank you for this link. This was the most helpful post on the thread so far.

The plug chop directions are a little vague. Is this to be done with the engine cold or do i let it warm up? And is revving it up in neutral the way its done or am i supposed to ride it?

Ride it, that way its working. Warm it up with an old plug, pull it out and then stick ina new one

[thcowboy]

213699

It said on page 2 of the jetting thread on the proper chop.

[oscarmayer]

You realize the community was trying to get you to stop trying to do something we all know does not work well and point you to the right direction. Like it or not, do you think your the only one whom ever tried or thought of this? do you really think your so smart and we are all so dome that you know your ideas are better than everyone else's?
I'm not trying to be a jerk here, I think you need to understand we are a community of people and some of the people here have extensive knowledge of things. when you ask for help and they offer it, then you ignore them and act like their information means nothing, how do you expect people to fee? you posh people away and they will not want to assist. You should be thankful and welcome of all information , good or bad offered. Especially when your new and young.
Good luck with your project, and while you think we are all jerks, I hope you understand, your standing next to these jerks by not even acknowledging their time and assistance and puffing your chest as if your better than them.

I hope you take this as a learning experience and know when you ask for help, that some of the things you doing may not work well and thus listen to the advice given.
again good luck.

[Truck Norris]

You realize the community was trying to get you to stop trying to do something we all know does not work well and point you to the right direction. Like it or not, do you think your the only one whom ever tried or thought of this? do you really think your so smart and we are all so dome that you know your ideas are better than everyone else's?
I'm not trying to be a jerk here, I think you need to understand we are a community of people and some of the people here have extensive knowledge of things. when you ask for help and they offer it, then you ignore them and act like their information means nothing, how do you expect people to fee? you posh people away and they will not want to assist. You should be thankful and welcome of all information , good or bad offered. Especially when your new and young.
Good luck with your project, and while you think we are all jerks, I hope you understand, your standing next to these jerks by not even acknowledging their time and assistance and puffing your chest as if your better than them.

I hope you take this as a learning experience and know when you ask for help, that some of the things you doing may not work well and thus listen to the advice given.
again good luck.

Look i never would have thought of a straight pipe if i hadnt seen it on peoples signatures on this site. And look i didnt tell anybody they were wrong or anything i just think a straight pipe will run fine and id like to give it a try. I have another 185s and a parts trike with a good engine. So if running a straight pipe is as horible as some of you would like to make it out to be i will still be ok.

In case you straight pipe nazzis havnt noticed the question isnt and hasnt been weather to do this or not its been about tuning. Yes i realize these were designed to have mufflers and air boxes and tuned acordingley. But i feel that its possible to tune it to run with more airflow and less back pressure.

One of the reasons i want this trike to be loud is that its the one my girlfriend will be riding when we go together. Id like to be able to shut off my trike and hear her from more than 10 feet away. Right now the trike is pretty loud but you guys are making it out to be louder i think. The setup im running is way quieter than a harley or my buddys yfz 450.

Look guys im not trying to make anybody mad or ignore your advice. Lots of this advice has been helpful. Some of it i feel i have disproved allready. All im trying to do at this point is tuning my carb to work ideally with the new exhaust and intake setup.

Thank you guys for any and all input.

[Truck Norris]

213739213740213741213742

Here is the setup im running. Its a chromed copper plumbing pipe that i cut off at a downward angle. I was worried how this would hold up to the heat but i went for an hour long ride and it held up well. The intake is a uni intake with a k n pre filter on it. I used a small piece of pipe with a 2 inch OD to conect it to the carb.

Right now ive got a 110 main jet in the carb and went down one notch on the needle. The bike seems to run about right now.

So far the changes in performance i have observed are a loss of bottom end compared to the stock setup and more top end. It doesnt pick up the tire as easily any more but i clocked it at 51 with this straight pipe setup. The fastest i got it stock was 46

[RIDE-RED 250r]

Quote Truck Norris, post #19 And also where i live in nevada there is more public land than private its not like im gonna be screaming around in some "designated riding area" or a track or anything. Just cruzing the desert



One of the reasons i want this trike to be loud is that its the one my girlfriend will be riding when we go together. Id like to be able to shut off my trike and hear her from more than 10 feet away. Right now the trike is pretty loud but you guys are making it out to be louder i think. The setup im running is way quieter than a harley or my buddys yfz 450

Seems kind of nonsensical that you will lose your girlfriend cruising the desert if you can't hear a straight pipe.. You would be better served to work on your group riding skills than making every machine as loud as possible.

You are kidding yourself if you think the loud Harley's get a pass. They get their balls broke more than you think in most states.

I guarantee you have a very peaky power curve now.. And don't make silly claims of "feeling" more power, it's nonsense and subjective. Just admit the whole purpose is that you want to make more noise... If a straight pipe was a real means of increasing performance, then tell me why not one single manufacturer, be they OEM or aftermarket makes a system like that available? (for racing purposes only) Hell, most guys running OOF drag pipes on the big 2-strokes still run a silencer. More noise does not equate to more power. It's a lesson we all have learned coming up through, including myself.

You have gotten everything you have asked for in this thread, directly and indirectly. Calling people here "straight pipe nazis" is only going to call down more thunder. You have to understand, not everyone lives in the desert. In fact, the vast majority do not and rely on public lands to have a place to ride. This kind of thing is what gets those lands closed off from us. It puts out a bad image when as many of us are trying to patch up an already tarnished public image. And I will flat out guarantee that public land you ride in NV requires a legitimate exhaust system with a spark arrestor. Pretty irresponsible to be riding in a very dry environment like that with no spark arrestor if you ask me.

If you want more performance, do some real performance enhancing mods, or upgrade to a higher performing machine.

I'm sure you will blow off this post as you have others and toss me in the barrel with the other "straight pipe Nazis". I'm OK with that, I'm in good company. Hopefully sometime you will see the wise advice given here for what it is and be a little smarter.

Regards

[oscarmayer]

If you want more, drop in a wiseco 200x 12:1 piston, do a web stage 2 cam, hard welded rockers, performance valve springs and tour rocking.
Right now you have a dirty bike with a shiny annoying pipe driving the people around you mad from the sound. The Db may sound the same but the straight pipes carry 3Xs further with noise than mufflers.
Anyway good luck.


Sent from my iPhone using Tapatalk

[83ATC185]

I'm a little late here but i run my stock 200x with the core out of the muffler. Stock exhaust but the whole muffler is hollow except for the little piece in the back near where the exhaust pipe meets the muffler. I'm running with a 110 main and almost 1/4 turn richer on the pilot to make it easier to start. Makes a nice deep sound at idle, pulls through the low/midrange MUCH better, and is actually quieter than most aftermarket pipes.

But to have straight pipes the engine should be at least 350 cubic inches, anything less is just making unnecessary unwanted noise.

[Scootertrash]

213739213740213741213742

The bike seems to run about right now.

i have observed are a loss of bottom end It doesnt pick up the tire as easily any more


Does not compute :wondering

[onformula1]

Quote Truck Norris, post #19 And also where i live in nevada there is more public land than private its not like im gonna be screaming around in some "designated riding area" or a track or anything. Just cruzing the desert



Seems kind of nonsensical that you will lose your girlfriend cruising the desert if you can't hear a straight pipe.. You would be better served to work on your group riding skills than making every machine as loud as possible.

You are kidding yourself if you think the loud Harley's get a pass. They get their balls broke more than you think in most states.

I guarantee you have a very peaky power curve now.. And don't make silly claims of "feeling" more power, it's nonsense and subjective. Just admit the whole purpose is that you want to make more noise... If a straight pipe was a real means of increasing performance, then tell me why not one single manufacturer, be they OEM or aftermarket makes a system like that available? (for racing purposes only) Hell, most guys running OOF drag pipes on the big 2-strokes still run a silencer. More noise does not equate to more power. It's a lesson we all have learned coming up through, including myself.

You have gotten everything you have asked for in this thread, directly and indirectly. Calling people here "straight pipe nazis" is only going to call down more thunder. You have to understand, not everyone lives in the desert. In fact, the vast majority do not and rely on public lands to have a place to ride. This kind of thing is what gets those lands closed off from us. It puts out a bad image when as many of us are trying to patch up an already tarnished public image. And I will flat out guarantee that public land you ride in NV requires a legitimate exhaust system with a spark arrestor. Pretty irresponsible to be riding in a very dry environment like that with no spark arrestor if you ask me.

If you want more performance, do some real performance enhancing mods, or upgrade to a higher performing machine.

I'm sure you will blow off this post as you have others and toss me in the barrel with the other "straight pipe Nazis". I'm OK with that, I'm in good company. Hopefully sometime you will see the wise advice given here for what it is and be a little smarter.

Regards

Gosh, I hope you realize you are a full blown stud! :lol:

Thank You!

[onformula1]

Here's a little list of killer riding places closed to noise pollution.

Southern CA.-
Palm Ave.
Honda Valley
Ascot raceway
Saddle back
Lots of the Mojave desert
Mammoth Mountain Motocross Area (Year around)

Arizona-
Thrasher Land
The Waterhole
Jomax
Black Mountain
The River Bottom
Carefree Kink

All awesome places to ride/race...Gone forever.

I guess it's nice to know that many of the locals would let us use their tractors & loaders to build jumps, berms, tracks only to complain about- "Those loud guys"

I guess the loud guys won!...Sad, very sad.

Thank you, for the quite time.

[oscarmayer]

^ that wasn't very nice sir.

[Truck Norris]

You guys are way too hard on Truck Norris ! The only advice i would give the nice young man is to can the farm equipment and get a nice ATC 250R without a spark arrester because nobody gives a fack how much noise you make in the desert ! We don`t have to suck up to anyone because..........wait for it.........NOBODYS THERE !!!! I think it`s funny how easily you guys get annoyed over stupid shaat ! Leave the kid alone he`s got way better riding then anything east of the Mississippi :Bounce:Bounce:p:Bounce:Bounce .......this has an old Kerker with no packing runs great stock jets.....its for sale !

Haha thanks man. Its like they think im gonna piss of the guys that are out shooting shotguns and pistols by riding a moderately loud bike. Haha i tried to get the tread back to the topic then that guy comes in guaranteeing how my trike runs and guaranteeing that theres regulations that dont exist haha.

[Truck Norris]

To you guys giving me lists of performance mods, i appreciate the info and am glad to here there are things that can be done to these trikes. But theres one thing that those require that this project did not... MONEY. I have maybe $40 into this exhaust/intake project and thats including the uni filter. Not once have i said id prefer a straight pipe over a real aftermarket exhaust system. I came here looking for jetting help not to get a bunch of trailprotrailprotrailprotrailpro. But since you guys want me to "justify" running a straight pipe here are my reasons.
My stock muffler broke where it connects to the head pipe, the cheapest fix i could think of was a piece of pipe, research led me to believe i could gain some power with this setup, and again cheap cheap cheap!
And the only people this excessive noise is going to piss off would be you guys(that have not even heard it) and my neighbors (and they have a pack of yipping little dogs so screw them anyway)

Anyway back to the topic...

I have gone on a couple rides with this new setup and done a plug chop. The 110 main jet shows to be a bit on the lean side still. As for performance i think i have gained some power from low end to top end. As i stated earlier the top speed increased from 46 to a solid 52. I can also still pop the front tire up with ease and it seams to break the tires loose to do doughnuts alot better and on solider ground than before.
I think im going to go up another size on the main jet because id rather be a little rich than lean. Other than that, this setup is great. And again its alot louder than stock but not even close to as loud as a stock yfz 450.

[RapidRick]

one down on the needle, it's easier and quicker. Do the best with what you have. The dez is a very large place!

[onformula1]

I`ll pick one (Palm ave.) why lie to make your point ? Palm ave was developed into track homes ! Typical Zoner sh!t why don`t you stop lickin RIDE-RED 250R`s bells before he decides to shoots you !
Which Palm Ave. Are you talking about?

[Truck Norris]

one down on the needle, it's easier and quicker. Do the best with what you have. The dez is a very large place!

That would make it a total of 2 down on the needle from the original position. Sorry i forgot to add i had already gone down one in my last post. Do you still think i should drop the clip one more rather than go to an even larger main?

[Truck Norris]

Which Palm Ave. Are you talking about?

Will you guys please stop filling this thread with all this useless stuff. All your doing is putting lots of posts inbetween the ones that actually pertain to the topic. If the good info on this thread wasnt so scattered then maybe the next guy that wants his straight piped trike to run good could just read the thread rather than have to make a new one and be put on blast like i have.

[onformula1]

Will you guys please stop filling this thread with all this useless stuff. All your doing is putting lots of posts inbetween the ones that actually pertain to the topic. If the good info on this thread wasnt so scattered then maybe the next guy that wants his straight piped trike to run good could just read the thread rather than have to make a new one and be put on blast like i have.
Sorry, I don't like being called a liar when it is now clear we are talking about different places! I'm out.

[RapidRick]

That would make it a total of 2 down on the needle from the original position. Sorry i forgot to add i had already gone down one in my last post. Do you still think i should drop the clip one more rather than go to an even larger main?

Yep, two down. Worth a try and doesn't cost anything, right?

Technically speaking the needle/needle jet are most influential approaching 1/2 throttle and falls off around 5/8 throttle. Main jet starts around 5/8 to WOT.

Use your judgement after reviewing the image below. Remember there's a jump of a couple of numbers between jet sizes and if you go to a larger main don't forget to readjust your needle clip.