Need help with my sons bike - no spark

[toolman4]

Anybody have a wiring diagram for a 1993 suzuki rm 250?

My son bought a 1993 suzuki rm 250. Owner started it fine, brought it home and was really hard to get going. Finally got it running and took it for a spin and sounded rough (hadn't been riddin in a while) so I cleaned the carb and it wasn't bad at all. Put carb back in and no spark. I didn't touch any electrical stuff when cleaning carb. Held the spark plug wire when kick starting and I can feel a little voltage. Could this be a bad coil and can the coil go bad if you pull the plug and ground it to the top of the head to check for spark because I had done that earlier? Changed spark plugs, have continuity through the coil, cleaned conections of coil to frame.

 

[_JOE_]

You'll need a service manual for specs so you can test all the ignition components. I had a 92 rm125 that ate a couple stators in the 3 or 4 years I had it.

 

[Uchytil]

Like Joe said. You should get a manual. The coil pri/sec resistance checks are easy with a multimeter. My buddies late 90's RM250 had a resistor cap on the plug wire that went bad.

 

[toolman4]

Thanks for the help. I'll check the cap. Anybody have the wiring diagram that they could post on here for the 93 suzuki rm 250?

 

[tnutcher]

I'm going through the same problem with my 91 rm250. pop off the flywheel/stator cover and see if it's rusted pretty bad. mine looked horrible, i'm hoping thats where mines problem is. Good luck to you - electronics are difficult for me compared to jetting or top ends
TNutcher