Jump to content

bike will not start


black night
This post is 5600 days old and we'd rather you create a new post instead of adding to this one. You can't reply in this post.

Recommended Posts

Do you want an ad-free experience? Join today and help support the Yamaha Owners Club.

How long has your bike sat, unused? Common for the jets to plug up when old fuel evaporates out, leaving varnish behind, especially in the pilot jets which have very tiny passages and, coincidentally, control the idle fuel mixture.

You're likely going to have to remove the float bowls (if you can get to them without removing the carbs, great), unscrew the jets and spray through them with carb cleaner, probe them with very thin copper wire (like one strand from a piece of speaker wire) and then dry them with air. Make sure you see a nice, cylindrical shaft of light coming through them, or they're not clean enough yet.

Link to comment
Share on other sites

×
×
  • Create New...