KX Riders
Maintenance & Technical => KX250 / KX125 => Topic started by: concave3 on August 26, 2011, 11:36:29 AM
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ive got an FMF pipe on my 250 with about a palm sized dent in the lower half of the expansion chamber... im having it repaired right now, what kind of power do yall think I should gain if any from fixing it, just wondering if anyone has had experience with this, or heard something about it... thanks!
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well got the pipe back looks great, I would post pics but I dont have sim to usb right now... but im gonna test it out later today, and see if its opened up the powerband, atleast it doesn't have a huge ugly dent anymore 8-)
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Sweet! let us know if it makes a difference
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well I like it :-D the powerband comes on smoother and quicker, and it carries way up hire in the revs, it really opened it up! I can hold the wheelies real good!
but after I rode it around I shut it off, then I hopped back on it fired up first kick and now my powervalves wont open :cry:
the rod is still connected to the lever that comes out of the cylinder but I think the mechanical governor in the case is messed up somehow, once I fix one thing another goes wrong!
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thats nice the power was improved, but that whacks about the powervalves.
if the govenor is really broken ill give you a good deal on my extra govenor i have in my spares box.
did you check the nut on the actuator arm?
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well I can move the rod with my finger and I hear the valves opening in the cylinder... I dont know much about what would be wrong if the nut somehow tightened itself :? but im guessing that theirs something wrong with the governor but I still need to learn more about that part of the system... its kinda weird it reminds me of an old air cooled 2 stroke with no powervalves and a flat top end lol the engine feels smooth though when its not screaming to all hell atleast...
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take off the whole clutch cover and have a look at it and report back with what you find .
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yup, will do be back in a few days
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well it turns out that the ball on the slider coming out of the cylinder came off, it has 2 tiny circlips and the outer one came off and the ball dropped somewhere, its only guna be about 10 bucks from bike bandit which is good...
pipe before
(http://i217.photobucket.com/albums/cc31/concave3/pipebefore2.jpg)
(http://i217.photobucket.com/albums/cc31/concave3/pipebefore.jpg)
during
(http://i217.photobucket.com/albums/cc31/concave3/Img_00127.jpg)
after
(http://i217.photobucket.com/albums/cc31/concave3/Img_00138.jpg)
(http://i217.photobucket.com/albums/cc31/concave3/Img_00129.jpg)
and of course the powervalve problem :x
(http://i217.photobucket.com/albums/cc31/concave3/Img_00150.jpg)
(http://i217.photobucket.com/albums/cc31/concave3/Img_00152.jpg)
and next to my broś 86 rm 250
(http://i217.photobucket.com/albums/cc31/concave3/Img_00136.jpg)
(http://i217.photobucket.com/albums/cc31/concave3/Img_00139.jpg)
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thats strange that would happen.. did you have the black rubber boot under the grey cap for the arm?
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no I didn't it never came with the bike when I bought it... good news is I went to the spot I was riding and miraculously found the roller :-o I think im just get slobber some JB weld on it so the bastard doesn't fall off again!
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which is quicker, kwak or suzi??K.
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well he just got the rm and it had a bad water pump seal(s) and it was burning gear oil... so he fixed the water pump seals and it still was burning oil, so I told him its probably his right hand main seal so were gonna check that soon... but as far as it stands my KX is way faster! hes just in my dust all day lol