Jump to content
Sign in to follow this  

yamaha mx 100

Recommended Posts

hi, i have a 1974 mx 100 that has spark to the coil from the magnito/points but no spark at spark plug lead, i have used a test light on the wire that comes from the magnito & the test light lights up when i turn it over with the kick starter. i have a couple of spare coils that i have tried but still no spark.

anyone had this problem & fixed it?

any help would be appreciated

cheers chris

Share this post


Link to post
Share on other sites

I've got a yamaha GT80 that caused allot of trouble yesterday doing the same thing. A new plug cap seemed to help for a bit but didn't fix it completely. The newer caps have resisters that go bad.

Yours should be points not electronic ignition ? I haven't looked at mine close enough yet so I'm not even sure what it is but it might be getting a new set of points and a new condenser today. That may just give it enough extra power to create a good spark

Share this post


Link to post
Share on other sites

thanks bruce, i have just purchased this mx100 a week ago so i think a new set of points & cap maybe nessary to fix the problem. i will go & get the coil tested to illimenate that as a possible cause aswell as the points & cap

cheers chris

Share this post


Link to post
Share on other sites

hi, it got it sorted the points needed attension

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×