Hello Folks
I bought a old 1990 cr 125, I rebuilt the engine. But its got a nasty bog for a bottom end, Top end is fine. I took the carb apart and discovered the following, remember im not a carb expert.
The Needle clip position was at the very top
1st position, Accoding to the manual
Thinking this was my problem i set it to 4th and i blew a plug.
Stock accoding to my manual is 3rd clip position
The air screw setting had no effect on the performance.
Turn all the out, turn all the way in, middle same thing.
Just bogged
Now after ripping appart the Carb i found the
standard main jet number is 182
Stock accoding to the manual is 168 (Big Difference)
The standard slow jet is 58, Which matches stock.
I dont know how to mesure the float distance,
so i cant tell you what its at
So my question, is 182 jet causing my nightmares ?
Do you have a instructions on how to mesure the float distance ?
Also the Float valve has no number on it so im assuming their all the same ?
645 feet above sea level.
North Bay Ontario Canada,
I googled that with success dont worry i had protection on
2007-10-03 15:47:48 · 3 answers · asked by Anonymous in Cars & Transportation ➔ Motorcycles
The clip position and main jet will have an affect on mid range.
The mixture screw is only for idle to 1/4 throttle opening.
Float height will only make a difference at WFO (wide f'n open).
If the carb doesn't leak it shouldn't be a concern.
If you want to check it -
Remove the float bowl.
Turn on the fuel.
Raise the floats by hand.
The fuel should stop when the float arm is parallel to the carb/float bowl mating surface.
Contact me for a carb troubleshooting guide.
It will explain what to change/adjust to correct specific problems.
2007-10-04 05:50:03 · answer #1 · answered by guardrailjim 7 · 0⤊ 0⤋
Do you have an aftermarket exhaust system?
2007-10-04 19:17:16 · answer #2 · answered by barry m 5 · 0⤊ 0⤋
intake air leaks? gas mix?
2007-10-03 23:00:17 · answer #3 · answered by Wattsup! 3 · 0⤊ 0⤋