Yamaha YBR 125 how to check if the thing has a spark .
easy just remove spark plug and rest the spark plug against a good earth or you can use a lead
to a good earth , then turn engine over .
as i do i link cable to earth you can see spark plug more easily
other posts of interest
Yamaha YBR 125 Ignition coil testing
easy just remove spark plug and rest the spark plug against a good earth or you can use a lead
to a good earth , then turn engine over .
rest spark plug on a good earth or
then press starter button , watch video below .
other posts of interest
Yamaha YBR 125 Ignition coil testing
buy Yamaha ybr 125 spark plugs from Ebay UK here or Amazon uk here
No Spark Weak spark
- ignition off ( i know but it happens )
- low battery voltage
- faulty , worn , dirty , wrong adjustment to spark plug
- lead , cap or coil faulty
- cap not seated correctly on plug
- faulty ecu
- crank position sensor
- short to ignition switch / circuit wiring
excellent video here on no spark diagnosis
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