I I am needing some advice troubleshooting the reason my 2002 748 won’t start Driving home from a run out doing 70 mph bike started to run rough and just died the back wheel didn’t lock up but I did grab a handful straightaway though I didn’t notice but at the time it was running hot When I got home I took both the belt covers off as that was my first thought thankfully both belts are there Fuel pump will prime pushing the start button you just get a clicking noise, Also I’ve pulled both plugs and the engine will still not turn over using the back wheel. Thanks
Have you checked the R&R white plug by the battery? Just wondering if you’re running the battery down enough to affect running.
Have you checked the contacts? These often melt and give up the ghost leaving you at best with an uncharged battery.
I’m getting 12ish v down to the starter Motor but can’t hear it spin. Might drop the oil and coolant and take out the starter motor tonight
any clues looking at spark plugs? was engine generally hot or was it one cylinder running hotter than the other?
A failing reg/rec will cause the battery to slowly loose charge, while riding this causes the engine to start to run rough, gradually getting worse until it is painful to continue and stopping, this could be a possibility if the symptoms match, why it now won't turn over on the starter just needs looking at a bit further before jumping in and removing the starter. Turning over with the back wheel, try in a higher gear. Steve
Ok cool I’ll read up on the reg/rec. I’m in 6th gear and not moving. Jumping from another battery didn’t do anything. Bridge the solenoid with a large screwdriver same outcome.
How did you get the bike home, if it won't turn over at all with the rear wheel and plugs out, it does look like something major unfortunately.
Have you taken the plugs out to try and turn the engine over? If it doesn't move I would be looking further into that before trouble shooting electrics.
