NSR 125 HELP

ferret10 · L Plate Warrior Joined: 05 Jul 2009 Karma :

CANT RED LINE IN IN ANY GEAR MAX 5 - 6 THOU FEELS AS IF CHOCKING OR JUDERING HOLDING BACK MAX SPEED 40 OR 50 MPH
PUT NEW TOP END PISTON, RINGS, BARREL AND STILL THE SAME

WHEN IN NEUTRAL WILL REV 6 - 7 THOU FEEL AS CHUDERING OR CHOCKING HOLDING BACK.

CAN ANYONE HELP PLEASE

TeddyCanuck · Nova Slayer Joined: 08 Sep 2007 Karma :

"JUDERING" and "CHUDERING"?!?
if it were a horse I'd say put some lead in it's right ear.
____________________
Current Bikes: 1973 Honda Cl350k5, 1976 Honda PC50k1, 1981 Honda C70 (6V) Passport, 1982 Honda C70 (12V)Passport, 1984 C70 Passport, 1989 Honda NSR125F Adriatico 2. In CANADA try: https://www.import-motorsports.org/ for cool performance sport-bikes.

ferret10 · L Plate Warrior Joined: 05 Jul 2009 Karma :

thanks for that very usefull

alains · World Chat Champion Joined: 08 Jul 2004 Karma :

your RC/valves is not working , lift your tank and look if the pulley on the right moves with different level of RPM
____________________
the worst day fishing is better than the best day working

ferret10 · L Plate Warrior Joined: 05 Jul 2009 Karma :

will look at that i think pully was moving a bit do u have to ajust them and how
Thanks for advise

alains · World Chat Champion Joined: 08 Jul 2004 Karma :

download my file https://www.geneva-racing.ch/~alains/NSRtips.doc
bugs come from :
- stocked flaps in the exhaust port
- loose contacts on the RC/valves control unit
- loose contact on the red/white wire at the CDI unit
- worn RC/valves control unit
Note : if you bike is a swiss import (serial begins by ZDCJC22E) you may have a shunt on the RC/valve control unit
____________________
the worst day fishing is better than the best day working

ferret10 · L Plate Warrior Joined: 05 Jul 2009 Karma :

many thanks will try them will let u know
once again thanks