Posted June 30, 200717 yr Hi i have a tzr125r 4jb and it has no spark i tried looking for a wiring diagram but all i found was one for a 4fl engine.Does anyone have a wiring diagram for a 4jb or any advice.
July 1, 200717 yr Hi i have a tzr125r 4jb and it has no spark i tried looking for a wiring diagram but all i found was one for a 4fl engine.Does anyone have a wiring diagram for a 4jb or any advice. Hi, as I recall on the TZR there is an earth connection for the coil that often corrodes. As the unit is above the engine and under the tank it tends to suffer with heat and trapped moisture. Check the coil readings as well against the manual. I think they're electronic so you'll be looking at relatively low impedances. Kind regards, Chris Heath
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