Monday 7 September 2020

i have an aprilia rs 125 2001 plate and starts and stops , i checked for a spark and i am only getting multiple sparks . what would be the problem ?






Q)  

i have an Aprilia rs 125 2001 plate and starts and stops , i checked for a spark and i am only getting multiple sparks . what would be the problem


A)  

hi , its hard to help when i d not know full story , is it a new bike that is never started properly or is just started happening ?


if your sure its spark then try a new plug first obviously then test coil , cdi etc .

test coil on input side see if its getting 12v to it .

starting then stopping could be fuel , have you cleaned carb out and cleaned jets out


Spark/Compression/Fuel/Air/Timing

You need all the above to get the engine to run.

Remove the plug, reconnect it to the HT lead, hold it on the cylinder whilst turning the engine over and you should see a spark.

Whilst plug is out do a compression test.

Check fuel is fresh and getting to the carb.

Check air filter is clean.

Unlikely to be timing but rs125s have been known to snap there own woodruff keys

Prob spark problem - duff plug , cap, ht lead, coil - prob not CDI but never know , timing slipped with woodruff key .

Try the obvious first and reply with findings!

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