New engine cranks but won’t fire

[JetboatBrad]

I just installed a 1.8l takeout engine from another watercraft and I had to swap flywheel covers. The flywheel cover has a stator or ( magneto ). I have a portion of the service manual and it says to do an “initial learning” when swapping. I don’t have that part of the service manual so I was gonna ask you fine gentlemen if you happen to have that. If not maybe any recommendations on what I may be doing wrong or don’t have correct.

 

[jmargo]

Have you checked the basics ? Fuel, Spark and all the connectors fully seated ? Does the other engine start ?

 

[JetboatBrad]

Have you checked the basics ? Fuel, Spark and all the connectors fully seated ? Does the other engine start ?

Yes I have checked fuel but it looks like I’m not getting spark. Other engine fires. I talked to dealership and he says I don’t have to do anything with the stator to get the timing right and that it is computer controlled. Any ideas?

 

[jmargo]

The other engine starting will rule out the safety switches. I would check the connectors and swap ECU's over.

 

[JetboatBrad]

The other engine starting will rule out the safety switches. I would check the connectors and swap ECU's over.

Ok I’ll try that

 

[JetboatBrad]

Ok I’ll try that

Just swapped ecu’s. Nothing. Does anyone know if there’s something with setting up timing that maybe I missed? Or some sensor coming out of that cover? Maybe if someone has a wiring diagram, that could be handy. I want to make sure I got everything correct.

 

[jmargo]

 

[RobbieO]

Do these engines use a crankshaft position sensor?

 

[Levi Weatherford]

From the service manual. They may not be in order so look at page numbers.

 

[Levi Weatherford]

These pages may be relevant as well.

 

[Levi Weatherford]

It does say something about “Initial Learning” with YDIS. But also says (4 Star Model). Kinda sounds like this procedure is only for the 4 Star models. The part about the flywheel magneto installation seems like it could cause problems if not done exactly.

 

[JetboatBrad]

View attachment 151554View attachment 151555

Awesome. Thanks man. I got her cranked up today. I had one connection that went into the stator that I plugged in upside down. She’s up and running now

 

[ripler]

The other engine starting will rule out the safety switches. I would check the connectors and swap ECU's over.

One engine starting would not rule out the safety switches, each engine has it's own safety switch.