S1 Publishing(Oxford)© 1999-07

World of motorcycleS
S1 Publishing(Oxford)© 1999-07
Maintenance
 Sparks and spark plugs
 . 
 Put a spark plug into the cap and lest the threaded end reast on your rocker box cover or other metal part of the engine, and with the ignition on, use the electric starter or kick the engine over using the kickstart.

Plug resting on the rocker box cover, No spark
I usualy keep a spare one seperate in my tool box to check this, if I get a spark I then remove the spark plug from the engine and test that seperately 

You can see the spark jumping accross the gap
Don't keep hold of the plug or lead when you turn the engine over or your'll get a high voltage shock, it probably won't kill you and at least you'll know the power is getting to the plug


If you haven't got a spark and you've checked your battery, battery connections, changed HT leads/ caps & spark plugs (if you can or have to)etc. Then the problem must be between the pick ups, the generator, to the coils.
 The most common problem is the wiring and connections between these, but
if you have an old machine, you might have to check the points & condensers first
This is just a general guide.
If you are about to do your own maintenance, using these pages, I take no responsibility if you get things wrong!
©