expat1970
Registered
last weekend i had the FI light come on , so i went home and got the code out of it (C40) went through manual idle speed control valve.so i performed the circuit tests from ECM to connector-ok . then tested valve had 79ohmes on each pair of terminals-ok manual says approx 80ohmes. it had a bit of corbon in bore so i cleaned it out and brass plunger on valve. reinstalled everything and went for a ride. light back on. i can get light to come on when i do a hard 3rd gear roll on through remaining gears.
did some searching and found out a clutch switch can cause this code to come on. i have a set of chinese levers on bike so i swapped out clutch lever back to stock and did another test ride, light still came back on the only test i couldnt do was idle up/down as i dont have the sds(think that is what its called) to command idle up/down to see if valve can be commanded.
any insight from others are deff welcome.thinking about starting with a new clutch switch way cheaper than the ISC valve(321.00)
did some searching and found out a clutch switch can cause this code to come on. i have a set of chinese levers on bike so i swapped out clutch lever back to stock and did another test ride, light still came back on the only test i couldnt do was idle up/down as i dont have the sds(think that is what its called) to command idle up/down to see if valve can be commanded.
any insight from others are deff welcome.thinking about starting with a new clutch switch way cheaper than the ISC valve(321.00)