Buy Yamaha Outboard Parts

Announcement

Collapse
No announcement yet.

250 yamaha hpdi losing power at wot

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 250 yamaha hpdi losing power at wot

    Yamaha HPDI 250.. loosing power at WOT will go up close to the rev limiter then slowly start losing rpms and then will not go over 5000 rpms after that. Had a similar issue few months ago and replaced the mystery filters in the High pressure pump and also had a coil intermitting. Fixed the issue there. Then after running great for a month I took it one day and it started messing up again. Plugs look good, Cleaned VST, high pressure filter was replaced the time before, filter inside the clear bowl was changed. hooked it to a computer and has 0 codes. Which is starting to make me think it might be electrical instead, just curious if anyone’s had this issue before and it might’ve been the stator, or trigger maybe? I figured if the high pressure pump was going bad it’d throw a low fuel pressure code.
Working...
X