BRed Big Red spins over once and stops. What do you think?

[fence178]

2010 MU700 spins over once and stops. I was told either starter sprag or decompression issues.

 

[Admin]

 

[DG Rider]

Pull the spark plugs and see what it does.

 

[HondaTech]

They're known for bad starters. Honda redesigned them to a more durable design.

 

[fence178]

Pull the spark plugs and see what it does.

I took it to a guy and he said he did a compression check. He said it spun over and compression was 90.

 

[fence178]

They're known for bad starters. Honda redesigned them to a more durable design.

I took it to a guy and he said it sounded like the starter sprag (clutch). I ordered a cam shaft and a gasket kit.

 

[fence178]

Pull the spark plugs and see what it does.

My brother said he turned the key yesterday and it fired right up. Turned it off and it would only turn over once and stop. Not sure if starter is bad or if it’s decompression problem.

 

[fmjnax]

I am currently at the end of this same problem. I can get it to start one-in-a-hundred tries, but 99% of the time it spins once and stops. Without the plug, the starter can turn it over and blow fuel through the hole. It will only go up to about 60psi and gets stuck. Solid spark (new plug and wire). Starter bench-tested ok (but that's no load). Solenoid tested good. Good voltage to the starter so wire and ground tested good. To get enough oomph to start the engine, I had to jumper the starter straight to my big truck battery and give it a solid 14V to spin it fast enough. Even a brand new UTV battery didn't have enough oomph to do it. With everything else ruled out, I have a new starter on the way. Will gladly report back if that solves the issue for me.

*In my scenario, this was immediately after an engine rebuild so I KNOW the internals are good*

 

[fence178]

Thanks for the helpful information. Let me know what you find out. Did you replace cam shaft on your engine rebuild? I hear the cam shaft has issues.

 

[fmjnax]

Sorry for the delay, fence. I got stuck in the Texas blizzard last week. I put my new starter in yesterday and the machine fired right up, so in my case that was 100% the issue. When I took the old one out, I couldn't spin the pinion by hand at all, so I'm pretty sure it dropped a magnet. The new starter I got was from Amazon and was $80