250r came back to me

[Twilight]

Well I sold it to my friend, and I guess he put about 500 into the bottom end, then another 200 into it, and it still does the same problem... I told him I would buy it back for the same price I sold it to him for if ihe couldnt get it going... one guy was going to buy it without a engine, but NOPE never happened. So he called me today and did the deal.

So, bottom end completely rebuilt. I did it once for him, and he had a shop do it. Same problem, smokes hella and doesnt idle. The throttle cable got **** up and so did the carb, so im going to work on it a bit since I have nothing else to do.

So... guess I have my demon bike back to me. And if it doesnt get fixed... then off it goes for parts :p

Max price to put into it, is 100 bones.

[Dirtcrasher]

So the bottom end got rebuilt twice, or am I reading that wrong??

The big problem is smoking and using oil??

It's my opinion that you guys are overlooking something very simple......

I bet I could fix that puppy in a day.

It bothers me to see such a great cheap find go to crap and be given up on.

[Twilight]

Yup, I did the bottom end, all new seals and bearings from Honda. Then after that didnt work, he had another spare bottom end that he had a shop do. Same result. I did all the work for free, but he said I messed something up, whatever. The shop either did too, or something else is ****ed up. Looking at it now, a black goop comes out that is as thin as gas, that never happened with me. Mine stuff was thick and grimey.

Leak down test- Good
Compression is now- 150psi
Carb is a 86

I dont mind giving up on it, after all this BS, its a parts machine to me. As I said before. I havent been able to ride it enough to really show great interest in it. With how much he put into it, im surprised he didnt just buy a new engine off ebay.

I fixed it before, but it went to crap after 20-30min... what went to crap? I have no clue. I set my limit for it though and if all fails, its getting parted.

[4cylinders]

hey, did you pressure test the crankcase as it sits?

[Twilight]

yup, held 7lbs of pressure for an hour.

[money89tractors]

so if its smoking and burning oil, bottom end redone, has good compression, i would check the valve seals.

-Phil

[DeePa]

its a 2 stroke...

[honda250sx]

Mike don't two strokes have valve seals???

LMFAO.

[money89tractors]

should read before i post huh. swear it said 200... ohwell. sorry.

-Phil

[atctim]

have you tried a good known carb off a good running bike? and how is the air cleaner?

[4cylinders]

hey, did both engines use the same exhaust?

[Macs]

Make sure the exhaust is not clogged.

[Yamada]

yup, held 7lbs of pressure for an hour.

Did the pressure was at 7 lbs after an hour? Or it slowly loose pressure during one hour?

[aaron7]

+2 for clogged exhaust

[factoryX]

the pipe could be clogged, but I am going with either the top end being close to needing a rebuild(150psi?) or the carb has something wrong with it.

[Louis Mielke]

hmmmmmm won't idle and has a lot of excess smoke and pipe goop. hmm. Could it possibly be jetting?!? I haven't heard a single thing said about jetting.


I can't believe someone so easily give a bike up as parts just because it smokes and doesn't run clean. wow.

[Twilight]

I will give up on a bike if its not worth working on and I have no interest.

1) jetting, all my bikes i have jetted fine, this one doesnt matter
2)carb, before i tried 2 different carbs, both had no affect
3) top end, 20psi down, will do a rebuild but it wasnt the problem before
4) exhaust is NOT clogged
5) Held 7lbs for an hour, did not lose any pressure

I paid 50.00 for this bike before and as of now I have 501.00 into it. With how much of a headache it has been, and everyone telling me all these different things that I have done before (i guess nobody read the other threads), it is looking more and more like a part out.

If a carb change doesnt do it and a top end doesnt do it, its getting parted.

[Nick_R_23]

Is this the 85 you picked up a little while ago? If you do decide to give up on it, Id be really interested in buying it.

-Nick :TrikesOwn

[Twilight]

Nick, that may work. We have trucks/planes/boats that go up to alaska and I may be able to get it shipped cheap/free.

Yup, same 85

[Dirtcrasher]

hmmmmmm won't idle and has a lot of excess smoke and pipe goop. hmm. Could it possibly be jetting?!? I haven't heard a single thing said about jetting.


I can't believe someone so easily give a bike up as parts just because it smokes and doesn't run clean. wow.


I share your sentiments EXACTLY !!

But I beat him up before about this and I like Twilight so I can't say too much more.... but 501$ :wondering GOOD GOD, thats NOTHING!! My head, porting and valves are worth 500$ :D

To me it's a challenge. At this point it's been "rebuilt" by Tom, Dick and Harry so mechanically it should or could or may be just fine.

There is an apparent GREMLIN in this motor somewhere (I've got some of those myself :D) but it can't be THAT hard to find by process of elimination.

It's topics like these that make me an absolute insane madman :twisted:

I wish sooooooooooo bad that I lived near some of these guys so I could have a stab at it.

When I was an industrial mechanic, this was MY thing. 2 other machinists/mechanics would - AHEM "FIX" the machine and a month later they would have the same failure. It was tough for me because I was the new guy and the guys that failed were my supervisor and maintenance manager. They would all beyatch and moan behind my back "Look at all this time Steve's wasting...." hours and hours of watching, measuring and asking questions. Sooner or later I would find the problem.

Not to toot my own horn but on at least 2 occasions the people that manufactured these pieces of high speed production equipwent offered to move me, set me up and pay me a very generous salary. I'm NO GENIUS, I'm just a guy that reads, looks and bugs the PISS out of anyone that knows more than me and thats how I've learned everything I know.................

I've screwed up my stuff, I've screwed up other people's stuff, but each and every time I figured out how I went wrong and what I needed to do to fix it.

It may not bother other people, but when something is within MY control, I may put it aside for awhile - but I rarely ever refuse to give up!!

I guess you gave it your all Twilight, were all different people :)

[Twilight]

Well I like finding things out too and thats why I ask so many questions, but well... this engine has just been a PITA over and over again. And the best thing is with my torn rotator cuff, I cant do much now that the wind blew it off the stand and its on its side right now with a broken shroud... so until my GF gets home it sits, pwned.

[Saul]

It's topics like these that make me an absolute insane madman :twisted:

I wish sooooooooooo bad that I lived near some of these guys so I could have a stab at it.

When I was an industrial mechanic, this was MY thing. 2 other machinists/mechanics would - AHEM "FIX" the machine and a month later they would have the same failure. It was tough for me because I was the new guy and the guys that failed were my supervisor and maintenance manager. They would all beyatch and moan behind my back "Look at all this time Steve's wasting...." hours and hours of watching, measuring and asking questions. Sooner or later I would find the problem.

Not to toot my own horn but on at least 2 occasions the people that manufactured these pieces of high speed production equipwent offered to move me, set me up and pay me a very generous salary. I'm NO GENIUS, I'm just a guy that reads, looks and bugs the PISS out of anyone that knows more than me and thats how I've learned everything I know.................

I've screwed up my stuff, I've screwed up other people's stuff, but each and every time I figured out how I went wrong and what I needed to do to fix it.

It may not bother other people, but when something is within MY control, I may put it aside for awhile - but I rarely ever refuse to give up!!

I guess you gave it your all Twilight, were all different people :)

WOW! What the heck are you doing at the unemployment line bro?! :wondering Sounds like you should be somewhere wrenching on something important instead of playing with 75 dollar headlight guards for 20 year old 3 wheelers!

:beer

[Twilight]

DC, after reading that I found what I like and hate about you... You're like me! hahahahaha

[300rman]

Checklist.

is it burning transmission oil? drain the trans, take the clutch cover off and remove the clutch. then, run the machine without trans oil (removing the clutch eliminates unlubricated parts moving)

if the thing stops its horrible smoking, one of 4 things is wrong.
center case gasket.
one or both seals on the crank are bad/installed wrong
OR the crank has grooving where the seals are supposed to seal, and you are not getting a seal.

i agree, the top end shouldnt determine how much the thing is smoking.......

are you sure the pipe is clear? it isnt burning off carbon in the pipe?

what premix ratio are you running?

when you split the cases the first time, how much residual oil was in the crankcase?



if it isnt using trans fluid, lean out the PILOT jet by 5 increments, and see what that does......main jet doesnt affect the idle/mid throttle much.

[Twilight]

Checklist.

is it burning transmission oil? drain the trans, take the clutch cover off and remove the clutch. then, run the machine without trans oil (removing the clutch eliminates unlubricated parts moving)

Did this first time, found it burning oil

if the thing stops its horrible smoking, one of 4 things is wrong.
center case gasket.
one or both seals on the crank are bad/installed wrong
OR the crank has grooving where the seals are supposed to seal, and you are not getting a seal.

Did stop smoking for 20min, then started again, second time, smoked when all oil removed, this is where I gave up first time

i agree, the top end shouldnt determine how much the thing is smoking.......

are you sure the pipe is clear? it isnt burning off carbon in the pipe?

Yup its clean, tried without pipe and still smoked horrid and didnt idle

what premix ratio are you running?

32:1 with amsoil

when you split the cases the first time, how much residual oil was in the crankcase?

small amount, after I re-did the seals I was able to look again when I did it again for my friend, no residue from crank oil

if it isnt using trans fluid, lean out the PILOT jet by 5 increments, and see what that does......main jet doesnt affect the idle/mid throttle much.

never did try that, when i get another carb I can try




My Pilot had bad crank seals and after doing bearings and seals it was gone and so was the smell, that engine now has 82 hours of ride time on it, still no problems. This engine smells, acts, and sounds like crank seals, but I swear its more than that.

I cant check anything until I get a new carb though.

[Nick_R_23]

You know this is starting to sound exactly like Billy's 250r thread, same symptoms. Is there a virus going around with the 250r's or something?? :lol:

-Nick :TrikesOwn

[Jared200x]

WOW! What the heck are you doing at the unemployment line bro?! :wondering Sounds like you should be somewhere wrenching on something important instead of playing with 75 dollar headlight guards for 20 year old 3 wheelers!

:beer

:w00t: :Bounce BahhhhhhhhAAAAAAA!!!!!!!!!!!!

[Twilight]

Well... it was a carb problem. Put the carb from my FL250 on for ****'s and giggles and all the smoke and idle problems went away.

Atleast with a top end kit coming im gonna have one strong ass engine hopefully...lol

aint that a *****

[Twilight]

So, since I couldnt ride it thanks to my buddy mr shoulder, I had my GF get on and take it for a spin.

Good god its fast! I think i can finally have something in the trails and dunes to finally ride with my Pilot and not feel bad about leaving her behind, haha. In 4th gear she said it started to lift her with every blip of the throttle so she stopped at 4th, hahaha

damn shoulder... =(

[Dirtcrasher]

Is this the part when I should say "I told you so...." :lol:

Regardless, glad you got it running. I didn't want to see you give up!

As far as making headlight guards, at least here in Massachusetts most manufacturing is all gone and most machining is all gone, so I left that career.

Now as a sheet metal worker my salary is nothing short of incredible, I'd honestly rather make less and pay less taxes...

At my age, I've been working since I was 15 years old. I absolutely love being home, getting up when I want and making headlight guards if I feel like it. I deserve my 628$ a week take home unemployment pay and I'll enjoy it for as long as I can :D

[Saul]

It was the carb all along?! Oh man!

Well - certainly nice to know another trike is running good. Congrats!!

[Twilight]

haha well she took it out again and decided to try drifting it around the dirt, FLIP. hehe my lil trooper.

To be honest between the old carb and this odyssey one I cant find a difference, except the needle is slightly bent at the tip on the 250r carb?

DC, maybe I should make plastic parts and you should do the metal parts =) Work is now giving me 4hr days until I am recovered...god just put me on L&I you bastards.