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Unable to Start, need advice

Started by james311, July 20, 2010, 03:07:07 PM

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james311

after an unfortunate accident my bike ended up falling over and landed on the clutch lever, needless to say it sheered of and I had to get a new one.

Took the old one off today and installed the new one and when we tried starting it we got nothing.  No turning over, or anything.  Put the clutch down as far as it would go, made sure it was in neutral, had the engine on RUN and as soon as I hit start nothing happens.

My friend and I are puzzled as to what is happening, the clutch is engaging, I can change gears and can hear it engaging, but still nothing.

Any trouble shooting ideas? How is the censer under the clutch lever suppose to be oriented?

Any help or advice would be greatly appreciated.

romulux

If it worked before, it's almost positively the clutch switch.

Can you short it out to check?
GS500K1

I don't know anything about anything.  Follow suggestions found on the internet at your own risk.

james311

Clutch switch? How would I short it?

DoD#i

the "censer" you ask about under the clutch lever is the clutch switch. easy-peasy check - unscrew it, flip the switch one way, try starting, if not, flip the switch the other way, try starting, and finally (if neither works) follow the wires and short them together and try starting (at least on the older wiring harness, NO WIRES NEED TO BE CUT to try this - you can just unplug two wires then plug the wires that don't go to the switch together.)

Most likely, the switch is fine, but not installed so that the switch part rides in the groove in the clutch lever which allows the switch to close when the clutch lever is pulled in. After finding which way works per the test above, install it so that it catches the groove correctly. If you hadn't started with changing the clutch lever and had this symptom, then a bad switch would be the first suspect. Having changed the clutch lever, not installing the switch correctly becomes the more likely cause.
1990 GS500EL - with moderately-ugly paintjob.
1982 XJ650LJ -  off the road for slow repairs
AGATT - All Gear All The Time
"Ride a motorcycle.  Save Gas, Oil, Rubber, Steel, Aluminum, Parking Spaces, The Environment, and Money.  Plus, you get to wear all the leather you want!"
(from DoD#296)

james311

Yeah this only started when we replaced the clutch lever.

We tried flipping it but it didn't work.  I'm going to try again tomorrow to make sure they are making good contact, do I have to remove the tank to follow the wire?

DoD#i

On the E model, the place to be is inside the headlight shell - no tank removal needed. Probably somewhat similar (I doubt pulling the tank is called for), but more plastic to remove, on the F - wherever the main mass of connections at the front is, that's where you need to be - the clutch switch wire goes along the handlebar for a ways, and then dives into that nexus. I don't even know which you have, actually.

I'd start with manually operating the switch with the switch removed from the clutch perch - if it starts, then you can see if you've just failed to get the switch tang properly inserted in the groove, which could easily be the case, even when flipping it and installing twice. If it's not positioned correctly when installed, the switch will be too loose to ever catch the groove.

Or it's possible that it fell apart (and was not noticed falling apart) when removed, in which case there won't be anything to manually operate and you'll need a new switch. But you will be able to test it easily, since normally what falls off (small plastic part with a tab that sticks up to go in the groove on the lever) exposes two metal contacts that you can connect with some third metal object.

And the final possibility is poor replacement lever that does not have the correct groove on the underside needed for the switch. Compare to your old lever stub.
1990 GS500EL - with moderately-ugly paintjob.
1982 XJ650LJ -  off the road for slow repairs
AGATT - All Gear All The Time
"Ride a motorcycle.  Save Gas, Oil, Rubber, Steel, Aluminum, Parking Spaces, The Environment, and Money.  Plus, you get to wear all the leather you want!"
(from DoD#296)

the mole

As I've said before, the best fix is to solder the wires together and chuck that switch in the nearest trash can. One less thing to go wrong on you. If you can't remember to put it in neutral or pull the clutch when you start, you shouldn't have a licence. :)
Rant Over! :thumb:

offcamber

If you have no luck with the clutch switch try checking the kick stand switch....if it fell on that side its possible that was damaged. However the clutch switch is the most likely.

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