wrote:

have recently bought a KTM 125 motocross bike. I got this bike cheap
as it starts and runs but will not rev to its full potential. I have
fitted a new plug, stripped and cleaned the carb, decoked the exhaust
but to no avail. The bike starts first time without any trouble and
will rev up to about 1/4 throttle but any more and the whole engine
bogs down and will not rev any higher. By holding the throttle wide
open it puffs and splutters and tries to blow the exhaust off, I
believe this to be a backfire? does anyone have any ideas of where I
should be looking to solve this problem. many thanks. nigel.

Please get onto http://www.wikipedia.org and find out the difference
between multiple posting and cross posting. One is very rude. The
other can be a good thing in some circumstances. Since this post also
appears in rec.models.rc.air, however, I suspect that you're well past
the bounds of polite cross-posting, even.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Posting from Google? See http://cfaj.freeshell.org/google/