Reply To: Motor replacement GV650C
You said you feel “grinding” is that the gearbox ? Have you had any chance to strip the clutch and check the plates , then re-adjust the cable or replace the clutch springs if they are heat fatigued. Also while it is idling , squeeze in clutch lever and squeeze out ==> Does the sound change ? That’s your THRUST bearing inside the clutch, easy to replace but may also mean wobbly basket , so check plates + springs , even the metal discs should be “flat” on a glass table to check for “warping” / little slight bends If not, check your wheel pulley (if still using Belt Drive on the wheels), front pulley may rattle slightly if the “locking” washer is loosing its teeth on the gearbox shaft splines (where your pulley sits on) Check the back wheel pulley and rear wheel “HUB” bearing (just the hub itself, after a while it will grind and use KOYO bearing) As for electronics = Did the replacement 2011 motor come with its own stator and throttle bodies ? And is there any chance the TPS sensor & ISCV (idle speed controller) needs checking again ? (Idle is controlled automatically based on TPS and the ISCV unit, but MAF & AIP & ET sensors also come in to play ISCV unit = It’s got a plug going in to it and has either 3 or 4 hoses sucking filtered air from the airbox and feeding it to your throttle bodies when throttle is shut (rider is not riding, bike is in neutral) Also disconnect it and tell us if it cuts off or screams higher ?
Hey mate sorry for late reply. Haven’t had chance to check clutch plates yet will be doing that over weekend.
As for disconnecting ISCV yes I did that while the bike was idling and it made no difference whatsoever