I would rule everything. I replaced the coil and plug and plug wire. Webmay 12, 2022ย ยท my grandson and i are trying to resurrect a 91 moto 4 250 that we got as a basket case a while back, and are having trouble getting a consistent spark out of the ignition system.

Webjan 19, 2024ย ยท starting problems in yamaha moto 4 can stem from various issues such as a weak battery, faulty spark plug, or clogged fuel system. Webmar 3, 2018ย ยท 1987 moto 4 no spark. The coils do go bad occasionally, you could test it or replace it. I charged the battery it started after i. Old gasoline left sitting in the. Webmar 19, 2016ย ยท i recently picked up an old 86 moto 4 80cc that i would like to get running and fix up for my grandson. We've been able to get it to cough and pop a few times, but can't get it.

Old gasoline left sitting in the. Webmar 19, 2016ย ยท i recently picked up an old 86 moto 4 80cc that i would like to get running and fix up for my grandson. We've been able to get it to cough and pop a few times, but can't get it. Then check wiring for bare spots that may be grounding out. I was told it had no spark which i verified by hooking up a. Visually check all wires and couldnt find anything bad. Weboct 27, 2014ย ยท look at the kill switch (run/stop) to make sure it isn't bad or broken. Reconnect any disconnected terminals or. Webcheck all of the electrical connections between the battery terminals, the ignition switch, kill switch, cdi unit, ignition coil and spark plug. Last part you haven't replaced is.

Visually check all wires and couldnt find anything bad. Weboct 27, 2014ย ยท look at the kill switch (run/stop) to make sure it isn't bad or broken. Reconnect any disconnected terminals or. Webcheck all of the electrical connections between the battery terminals, the ignition switch, kill switch, cdi unit, ignition coil and spark plug. Last part you haven't replaced is.

Last part you haven't replaced is.