[TW_in_BC]

I'm talking REALLY random...this is the 3rd time this has happened this year.



Driving along, minding my own business when she will stall at a traffic-light or stop sign for no apparent reason. Repeated cranking won't start her, but twisting the throttle makes the cranking speed increase slightly...(because of less restriction?)

After a few minutes of this, I eventually dig out the tool kit and pull the spark plug...looks fine, looks normal.

Exchange for "spare" spark plug in tool kit...starts!



When I get home, I replace the "spare" spark plug for the original...she starts and runs for another 6 - 8 months without a hiccup.



Suggestions?

 

[mateo3062]

Had same prob the other day...thought maybe oil needed change and air filter clean....then went on 200 mile bike ride in the mountains no probs. know anything about slip on exhaust...cant seem to figure it out

 

[mrlmd]

Ever try and remove the gas cap? Possibly the vent is clogged and you're getting a vacuum in the tank and not letting gas flow. You would hear a hissing when you remove the cap from air rushing into the tank. Removing and replacing the cap immediately solves the problem, for a while anyway.