I'm working on a buddies 1996 cr125 and it won't rev past 3 or 4 thousand rpms....been through the carbureator 20 times, checkes reeds, plug, exhaust ports, at a loss, anyone had this problem? I'm starting to think it has to be electrical...could it be the stator or coil? Any advice is greatly appreciated.
Won't rev question
Started by
shanecarr
, Apr 23 2012 05:44 PM
12 replies to this topic
Posted 23 April 2012 - 06:23 PM
The valves are opening, I took the covers off to verify, and the jetting is stock 172 main, 50 pilot, I have tried it every way I can think of....this is not my first carb i've been into...i even bought a new float and set the float height to stock .....but I'm definately open to advice......cause i'm stumped.....
Posted 23 April 2012 - 07:46 PM
Did you do a compression test? My bike wasn't revving up either, turns out it had 90 psi compression and the ring was bent around the piston and driving into the cylinder wall... hope its not that!
Posted 24 April 2012 - 07:05 AM
Check out the electrical, if you've gone through the fuel and intake systems then i'd start checking electrical
Posted 24 April 2012 - 12:17 PM
Compression is 160...it seems to come and go what makes me think it's electrical....so anyone care to guess if it's the coil or stator or cdi?
Posted 24 April 2012 - 12:41 PM
Kid he got it from said he just put a piston in it....CAN you put them in backwards? Will it even run if you do?
Posted 24 April 2012 - 08:58 PM
Yes it will run, for how long who knows. But it will run like crap, take the exhaust off and if you see the window cut out on the piston its on the wrong way.
Edited by noysy1, 24 April 2012 - 08:59 PM.
Posted 28 April 2012 - 03:10 PM
Was the strator just for anyone's future reference.....revs out now....
Posted 29 April 2012 - 01:27 PM
Damn lol my next guess was going to be the carb slide had been put in backwards. That will cause all kinds of crap, but glad to see you got it sorted!!!
