Buy Yamaha Outboard Parts

Announcement

Collapse
No announcement yet.

F90 Does Not Start???

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

  • boats.net
    replied
    Have you check cam shaft timing?

    Leave a comment:


  • rougeaut
    started a topic F90 Does Not Start???

    F90 Does Not Start???

    Hi I thought I had a fuel issue but with cleaned injectors that are dumping fuel out into the intake and pooling up at the block/intake interface I know the fuel system works at 43 psi on the rail. Great Spark for each plug, comp is to spec. But after every time I try to start it and it turns over very fast sounds like it wants to start but then I check the plugs and they are dry to moist with no gas smell. I removed the plugs and turned it over with the intake manifold off and there is no blockage from the intake valve to the cylinders?
    So the intake valves open just I assume not when the fuel is spraying out?
    Could this be a timing issue or what it is a new motor to me but it shows the right plug configuration from the two coils as the manual indicates.
    I started this new thread as the last one focused on gas/pressure but now I know it is a different animal so does anyone have any thoughts as to how to figure this out. The static timing test for TDC on #1 on the comp stroke showed the timing marks are very close.
    Could this be a broken woodriff key that has thrown out the timing or such?
    Note: there is a kind of white smoke only a little that comes out of the air silencer when trying to start it but I figure that is just a lean to very little gas condition?
    Cheers I hope this is something that can be figured out on this forum.
    Last edited by rougeaut; 07-12-2012, 12:26 PM. Reason: Figured out the problem
Working...
X