I have a 1984 ? yamaha trizinger It started dieing in run pos and I flip it to start and it would run ... two years ago now there is no spark at plug ,,, every once in a while there is spark for 3 or 4 pulls then nothing Ive played with it for a couple days still nothing where do i start I think there is nothing from where the coil plugs in what to do help help help

tom, May 2010

please check your ignition pickup wiring for broken wires

m, May 2010

tri Zinger.. Not a clue what that is but the principals are the same.
It will be a case of checking and changing
Change Plugs
Check and change HT leads and caps
Check an change Coils
Condensers

If it isnt one of these I would be surprised. However I once had a GS450 which I changed everything as above and it turned out to be a wire that was split! Cost me a bomb and I could have sourced it for nothing!

bb, May 2010