SV650.org - SV650 & Gladius 650 Forum - View Single Post - Intermittent Starter Problem

aesmith · 19-05-20, 10:58 AM

Hi,
I thought I'd updated the thread, sorry. I tested exactly as suggested, next time it didn't fire straightaway I kept the starter button down and clutch held in, and jiggled the clutch lever. First jiggle the starter gave a little cough, next one it fired back up.

So it was the clutch switch which I think was the very first suggestion. I fixed it by dismantling, cleaning and lubricating the switch. It's very simple and I can't see what can go wrong other than sticking. Or breaking it when taking it apart.

I've not done anything yet about bypassing the interlocks, but my current thoughts are ...
Side stand switch - I think the easiest way would be to solder jumpers inside the relay. Easy to revert by replacing the relay, and as well as the side stand switch I can cut out some diodes which could also be possible failure points.

Clutch switch - I can't see how to make this easily reversible but what's needed is to cut the wire that comes from the starter solenoid, and permanently ground it. The switch (when working) will be sensed by the ECU exactly as standard. If it fails then ECU operation maybe slightly degraded, but the bike's not immobilised.

19-05-20, 10:58 AM	#16
aesmith Member Join Date: Mar 2013 Location: Aberdeenshire Posts: 966	Re: Intermittent Starter Problem - 650 Pointy Hi, I thought I'd updated the thread, sorry. I tested exactly as suggested, next time it didn't fire straightaway I kept the starter button down and clutch held in, and jiggled the clutch lever. First jiggle the starter gave a little cough, next one it fired back up. So it was the clutch switch which I think was the very first suggestion. I fixed it by dismantling, cleaning and lubricating the switch. It's very simple and I can't see what can go wrong other than sticking. Or breaking it when taking it apart. I've not done anything yet about bypassing the interlocks, but my current thoughts are ... Side stand switch - I think the easiest way would be to solder jumpers inside the relay. Easy to revert by replacing the relay, and as well as the side stand switch I can cut out some diodes which could also be possible failure points. Clutch switch - I can't see how to make this easily reversible but what's needed is to cut the wire that comes from the starter solenoid, and permanently ground it. The switch (when working) will be sensed by the ECU exactly as standard. If it fails then ECU operation maybe slightly degraded, but the bike's not immobilised.