2007 VZ250FTLR Need Help!

[ccorona22070]

engine will run for a little while, die out. I have taken it to two mechanic shops, one tells me maybe its the driver injectors, the other one said maybe wire harness. I don't work on maybe's...

Diagnosis Record
26, injector, 109.2
13, pulser coil, 109.2
23, Intake temp sensor, 109.2

[greasyshaft]

MAYBE voltage drop somewhere causing everything SHTF at once.
Is it maintaining fuel pressure?
running on four cylinders?

Did the engine stall at 109.2hrs?

[rodbolt17]

some years back I had a VZ250 doing about the same thing.
would run for right at 13 minutes above 5000 RPM and fall down.
occasionally it would set a code for #3 injector.
what I found was as the #3 pulser coil exceeded about 62V it shut off some of the injectors and the ECU went to a default.
the specs in the book are MINIMUM voltage specs.
however I did find above about 62V on the pulser coils did bad things.
the solution on that motor was a pulser coil assy.

[ccorona22070]

Mechanics can't dignose!

I received the boat motor back, The motor will not start at all now. I have a new battery, changed the starter, the spark plugs. The mechanic stated that I needed new wire harness on the motor, which consist of two, I had them replaced, two driver injectors. Motor is not firing at all. this is the engine monitor from the last reading. Now i'm being told it needs a new computer.

fuel pressure 97.0+1.5) 4.85,mpa
fuel pressure (1015+217). 703.76.psi
atmospheric pressure, 1006.9. hpa
atmospheric pressure, 29.8, inhg ignition timing. -. deg
battery voltage (12-16), 12.23. v
tps voltage (0.5-4.5), 0.92,v
throttle valve opening (0-90), 8.8.deg
fuel injection duration, 0.00.ms
water temperature (below 90), 23.0. *c
water temperature (below(194),73.4,*f
water temperature (below 70), 23.0. *c
water temperature (below 158), 73.4, *f
electric oil pump
Firing of cylinder #1 NO
#2 NO
#3 NO
#4 NO
#5 NO
#6 NO

[ausnoelm]

so, lets get something clear here, the mechanic has replaced that stuff and the motor wont start, and you are playing with it now? I think if that's the case, he should be fixing it again, just for fun, the kill switch is in place isn't it?

[rodbolt17]

dude.
you now have technician induced failures.
go to the Yamaha website.
find a dealership near you that employs a master tech.
have it fixed.