16-09-14, 03:08 PM
You might find this link helpful:
http://www.yamahafz1oa.com/forum/showthread.php?t=59207
The float needle seat O-ring problem requires carb removal to fix. Do all four carbs while you're at it.
http://www.yamahafz1oa.com/forum/showthr...ilure+mode
'Ridden infrequently' always makes me suspect the pilot jets.
You've probably thought this yourself but just in case. Good spark with spare plug but not when plug lead reconnected to the plug in the head ... have you changed those two plugs over?
http://www.yamahafz1oa.com/forum/showthread.php?t=59207
The float needle seat O-ring problem requires carb removal to fix. Do all four carbs while you're at it.
http://www.yamahafz1oa.com/forum/showthr...ilure+mode
'Ridden infrequently' always makes me suspect the pilot jets.
You've probably thought this yourself but just in case. Good spark with spare plug but not when plug lead reconnected to the plug in the head ... have you changed those two plugs over?