No start issue

[faceplant2]

Let me start off with saying - not a mechanic by any means . 1990 - 650 square nose. Push start button - no click and no start . I have replaced S/S switch , starter relay , positive cables from battery to starter relay and from starter relay to starter . I also put in a new ground cable and had starter rebuilt . I have tested new S/S switch and starter relay in my other Superjet and they work fine. I also did the test on starter relay where you connect two small wires and starter does engage. I have disconnected stop switch wires ( black and white ) and still no go . I have checked continuity in wires and all seem fine . I have tried 3 different charged batteries while also using a jumper just in case . I am at wits end . Any more ideas ? Would a bad stator or coil cause no click and no start ?

 

[harrymank]

Can you short the starter relay across and make the ski crank?

 

[faceplant2]

I hooked the two small wires of the relay up to the battery and yes , it did crank .

 

[harrymank]

Is the fuse good and making connection on both ends? What prompted this problem to start? Was the ski starting correctly recently?

 

[faceplant2]

Fuse is good . Was starting correctly previously although , once in a while , you had to push down real hard on the start button to get contact . Or , I assumed to get contact .

 

[harrymank]

You replaced the complete switch assembly with wires and all?

 

[SuperJet-Dave]

I had a good fuse, that ended up needing a cleaning on the ends of the fuse and in the fuse holder (used steel wool). Sounds too simple, but worth a check.

 

[faceplant2]

Yes , new switch assembly with wires . Double tested in my other Superjet . I will change fuse again .and steel wool . Worth a try .

 

[harrymank]

You need a rubber chicken!
I have them in all my pickups to keep the gremlins away. I gotta get one to throw in my superjet cause I’m dealing with a charging issue right now. Gremlins get in there at night and wreak havoc.

 

[faceplant2]

You are probably right . LOL

 

[harrymank]

Maybe check and make sure the grounds in your ebox are clean and tight, sounds like you’ve gone through the right steps to diagnosing your problem.

 

[faceplant2]

Put in a new fuse and also took steel wool to it for good measure . All e box connections are clean and tight . Connections are snug . Baffling me like crazy .

 

[faceplant2]

SOS. Any other ideas ?

 

[harrymank]

If you’re able to jump the brown wire from your starter solenoid to 12v and it starts then something from your switch to the relay is not right.

 

[Bobbyjackson]

Are the buttons inside in the right spots, start in the stop and vice versa. I did that the other week

 

[SuperJet-Dave]

SOS. Any other ideas ?

I know it is a pain but you might want to continue swapping electrical parts (and wires if practical) with your other Superjet. See what makes the other one fail and/or what makes this one work. Not sure what year your other SJ is, just need to assure the components are compatible (suggest using diagrams and part number lists from a site like yamahapartshouse.com).

 

[faceplant2]

Two Superjets are at different locations so can't readily change parts . Will do if need be . Buttons inside S/S switch are in correct locations. If I jump the starter relay with black and brown wire - kicks over . If I just jump brown wire - does NOT kick over .

 

[OCD Solutions]

Given that very last statement, I'd suggest that you do not have a ground connection for that solenoid. The only ground connection comes from the black wire in the stator harness so if that's buggered, you can try a temporary jumper from the battery or from the engine case.

 

[faceplant2]

I will try temporary ground from battery tomorrow . Fingers crossed .

 

[faceplant2]

Temporary ground worked . Yippie I O Ty Aye !!!!!! Trying to get flywheel off to access stator harness . Don't want to ream on bolt . Question - which way does the bolt turn . Standard or reverse thread ?