Will running a straight pipe right off my header kill the motor eventually? Is it ok to do, i mean it's not gonna hurt anything will it?
First Time Rider
Arm chair racerNew to the board
Will running a straight pipe right off my header kill the motor eventually? Is it ok to do, i mean it's not gonna hurt anything will it?
1985 ATC 200S--no spark, parts for sale
85 YTM 125--needs a carb cleaning and set up
79 Suzuki TC125--dirtbike, now fully restored!
84 ATC 200x--Need a good frame, rear caliper bracket, and a blown up or barley running motor with a good clutch.
Message me if your interested or have anything i need
First Time Rider
Arm chair racerNew to the board
A straight pipe like this one? I dont know if it will hurt the motor or not. I doubt it.
Its hard to kill an old honda. this one is proof.
"Son it's faster horses, younger women, older whiskey, an more money."
84 Tecate
84 Big Red
88 Blaster
01 Raptor
First Time Rider
Arm chair racerNew to the board
is that comin right off then header?
1985 ATC 200S--no spark, parts for sale
85 YTM 125--needs a carb cleaning and set up
79 Suzuki TC125--dirtbike, now fully restored!
84 ATC 200x--Need a good frame, rear caliper bracket, and a blown up or barley running motor with a good clutch.
Message me if your interested or have anything i need
First Time Rider
Arm chair racerNew to the board
No. I just took off the factory silencer and added a piece of conduit . Then added the custom chrome plumbing pipe tip.
"Son it's faster horses, younger women, older whiskey, an more money."
84 Tecate
84 Big Red
88 Blaster
01 Raptor
Got The Holeshot
Arm chair racerJust too addicted
Nope, won't hurt your motor, just your ears.Just don't put a straight pipe on a 2-stroke. I kinda like that pipe on your big red there. :-D
"I am going out of this world.....the same way I came in...screaming and covered in blood."
Got The Holeshot
Arm chair racerJust too addicted
i ran my tecate around without the silencer one time...actually 3 times..it is soo friggin loud...
Wanna race? ;-)
85' Tecate (still looking for entire front brake asembly...)
bonanza mini-bike
if you cant ride with the big boys...put it back on the trailer
New to the board
Arm chair racerNew to the board
shouldnt hurt it at all but if u open it up too much u will have to make sure it gets enough air, my brother had to take the cover of the air box on the 185 to make it run right with the pipe, he didnt jet it or nothing
Power User
Roostin Away
Running your machine with just the headpipe will eventually crack the pipe, because of all the vibration. Having the muffler on there supports the whole pipe, because it mounts to the frame, and dosent vibrate at all really. I learned this on my 200x, when I ran it with just the headpipe for a few months, and then had to have it welded. It looks like crap now, and I wish I had never run it without the muffler. Other than that, it will do no damage to the engine itself.
Hey Tecate man, I know what your saying when you run a tecate without a pipe. Man, my ears were ringing like a bomb just went off. Im not planning to try that again. lol
THE 80's RAGE! Currently owns:
81, 85 Yamaha Tri Moto 125
83 Yamaha Tri Moto 200 x2
82,83 Yamaha Tri Moto 175 project
85 Yamaha Tri Z 250
84 Kawasaki Tecate 250
84 Honda ATC 70
85 Honda ATC 350X
84 Honda ATC 250R
(2) 84 Honda ATC 200x
82, 83 Honda ATC 185s
81 ATC 200
Lots of other parts and bikes
Power User
Lord of the trike
If this question was asked 2 months ago...everyone would be saying that it would eventyally bend your exhaust valve.I cant decide what is good or not anymore...
[20:55] <waterpumper> putting a racing pipe on a Foreman is like putting a high dollar bikini on a 400 pound chick...just because it fits doesn't mean it looks cool
Power User
Teaching quads a lesson
Welp, there is no "official" answer, everyone has an opinion. First off, let me say that whoever said that you shouldn't do it on a 2-stroke, is wrong. Infact, on a 2-stroke, you don't even need the silencer. The expansion chamber and the tapered piece on the end of it, take care of all the backpressure. All 2-stroke mufflers/silencers I've seen are all of straight-through design, and add no backpressure. On a 4-stroke however, the muffler has tuning properties. More backpressure adds more low-end on a 4-stroke, less backpressure = more top end. Is it safe to run a 4-stroke with just the head pipe? In my opinion, yes. But you will lose low-end power. Running with just a head-pipe makes it loud. If you run it with NO headpipe, you will warp your valves. The way this works is the valve cools down so much, because the head-pipe isn't there to help keep it warm and let it cool down slow, so it warps.
Trikes:
1973 Honda ATC70-orange!
(2)1985 ATC70
1985 Big Red 250
1985 250R
Got The Holeshot
Arm chair racerJust too addicted
I care to disagree. Backpressure in the exhaust is needed with some 2 strokes isn't it? I've been running my 580cc 2 stroke rotax for a while with no pipe or silencer (insanely loud/just took it off to paint the exhaust!) and it seems to run like crap...and i know you need to rejet with a lower restrictive pipe.
Anyways my friend took the baffle out of his warrior (4 stroke) and it sounds pretty good, really throaty and not too loud. Didn't seem to loose much power either. How does your bigred sound greenlightning?
-86 Polaris Scrambler 250r/es - sold
-84 200es Big Red
-92 Ski-Doo Formula Plus 583 -88 Safari 377 -68 Super Olimpique 299
-87 Jeep XJ 5" lift/many other mods-sold
-89 F-150 4" Lift/33s
-90 Acura Integra - '83 Mustang 5.0 convertible (the new project)
Ask me about custom cut decals!
Power User
Teaching quads a lesson
Well no wonder! You took the pipe off. The pipe takes care of all the tuning, the silencers do nothing as far as tuning....on a 2-stroke.Originally Posted by PowerTrike
Trikes:
1973 Honda ATC70-orange!
(2)1985 ATC70
1985 Big Red 250
1985 250R
First Time Rider
Arm chair racerNew to the board
It was way too damn loud.I run it that way for a couple of summers. mostly swamping in the river. It ran pretty nice with no pipe, considering all the oil that thing burns. this last summer I finally put the stocker silencer back on. The novelty kinda wore off and I dont really think the guys I rode with really liked me riding too close cause it almost hurt your ears. It was LOUD.
"Son it's faster horses, younger women, older whiskey, an more money."
84 Tecate
84 Big Red
88 Blaster
01 Raptor
Got The Holeshot
Arm chair racerJust too addicted
LOL-not sure you'll get a responce- this thread is from '04 & his last activity here was in '06
Previously Owned:
1985 ATC 250R (261cc)- 38MM PWK QV/AS, VFORCE3, RPM TIMING ADV., FULL DG EXH, CLARKE WHITE TANK, DOUGLAS RED LABELS, PRM NERF BARS, + ALUM. PARTS
1983 ATC 185S (186cc)- HI COMP., BASSANI HEADER, REAR DISC BRAKE CONV., '86 200X HUBS, ALUM. RIMS, DIRT DEVILS
1982 ATC 185S (224cc)- PK WELD-ON KIT, PK CLAMPS, PK EXHAUST, SL90 SHOCKS, OIL COOLER, PCCC RIMS
1981 ATC 185S
1984 ATC 250R
1981 ATC 250R
1983 ATC 110
1969 HONDA MINI TRAIL 50
TRIKELESS
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