VS800 No Spark when hot

[sgtcall]

Asking for someone else.

97 Suzuki VS800 sputters and shuts off after it is warmed up. Seems to run fine when cold. Has spark when cold but no spark once it is at running temperature.

Any thoughts?

[Herb]

you don't specify if both cylinder don't have spark so I am "assuming" that neither do. That indicates that it is either the pickup on the crankshaft or the ignition box itself.

If it were only one cylinder I would look at the spark plug first and the coil second.

[sgtcall]

you don't specify if both cylinder don't have spark so I am "assuming" that neither do. That indicates that it is either the pickup on the crankshaft or the ignition box itself.

If it were only one cylinder I would look at the spark plug first and the coil second.

Thanks Herb

[Herb]

I am not sure what the resistance on the pickup is supposed to be but reading it when cold and again when it quits could tell you if it is bad.

Considering it is only when hot, if you want to take a chance, I would go with the pickup first.

[Lechy]

Check this transit block, it's a fulcrum point and the wires can break here (happened to me).


Check the earth cable by the battery lug for stiffness and/or swelling, indicating a point of high resistance if found make up a new one.

[sgtcall]

Check this transit block, it's a fulcrum point and the wires can break here (happened to me).


Check the earth cable by the battery lug for stiffness and/or swelling, indicating a point of high resistance if found make up a new one.

Thanks Lechy

[Pio412]

sgtcall, so what ended up being the issue?

[Herb]

Inquiring minds want to know...

[sgtcall]

I don't know but have been trying to find out. That was a question from the Motorcycle Forum that didn't get a lot of attention so I figured you guys could help out. Haven't gotten any feedback on the bike is running again.

I use Intruder issues on the Motorcycle Forum to try and bring in new members here. I just invite them to IA and hope they join. I am not sure how well it works but we have gotten about 28 new members just this month so something is working.

[Herb]

I don't know about others but I always appreciate when people let us know what solved a problem. The information has come in handy a large number of times.

[sgtcall]

I don't know about others but I always appreciate when people let us know what solved a problem. The information has come in handy a large number of times.

I know I hate it too. If the problem is solved the OP should post the end solution so that others can learn from it.

I was thinking about creating some threads based on different categories of common issues using what people have already posted on here. Basically combine information then pin it to the top of the correct section and create a PDF document of it and add it to the IA Drive I set up that has manuals and other information already in it. This would be a project for next winter, summer time is for other things. Your thoughts?

[Herb]

I don't know about others but I always appreciate when people let us know what solved a problem. The information has come in handy a large number of times.

I know I hate it too. If the problem is solved the OP should post the end solution so that others can learn from it.

I was thinking about creating some threads based on different categories of common issues using what people have already posted on here. Basically combine information then pin it to the top of the correct section and create a PDF document of it and add it to the IA Drive I set up that has manuals and other information already in it. This would be a project for next winter, summer time is for other things. Your thoughts?

My thoughts are that it would be very useful for everyone.