Yamaha New clutch sheave... now won't run...

[sand shark]

Get yourself the Mikuni high flow fuel pump. I think you are not getting enough fuel to the carb.

 

[crazywatson]

Re: New clutch sheave... now won't run...**movie posted on post 17**

There is actually one of those on craigslist here. Maybe they can ship it. They only want 25 bucks.
http://sfbay.craigslist.org/eby/snw/4736305063.html

 

[avery4jc]

Re: New clutch sheave... now won't run...**movie posted on post 17**

It already has one. Plus it ran like a freakin champ before. I've had it out to Pismo twice and it never missed a beat and I haven't changed anything that would affect tuning or fuel needs. It's really odd.

 

[avery4jc]

Re: New clutch sheave... now won't run...**movie posted on post 17**

No chance the exhaust is some how plugged up?

I looked at the exhaust last night. I noticed some of the (what appears to be) fiberglass is poking out of the input side of the muffler. I'll pull it and check into it further...

 

[avery4jc]

Re: New clutch sheave... now won't run...**movie posted on post 17**

Problem solved people! I can't tell you how excited I am to be done with this. I'll let the picture speak for itself, here's a small sample of fuel I took out of the fuel cell tonight. So much water you'd think I filled up somewhere in Mexico!
Flushed everything, filled with fresh fuel and it runs like a champ again.

 

[MikeyAz]

Damn that's crazy! hey pemex ain't that bad

 

[crazywatson]

Re: New clutch sheave... now won't run...**movie posted on post 17** PROBLEM SOLVED!

Nice!

 

[tatum]

Any idea how the tank got water in it?

 

[avery4jc]

Any idea how the tank got water in it?

I'm assuming it was bad gas. It's stored in the garage and I don't play in anything but sand so I don't see how it could of happened any other way.

 

[avery4jc]

I finished putting it back together tonight and ripped around the neighborhood a little. Runs awesome and the new sheave, weights and spring make a big difference. I had some fuel leaking out the drain/overflow line on the float bowl but I rotated the carb and it stopped. I think it was sitting a little crooked and the float wasn't moving up and down like it should. All seems good now.

 

[the stripping shop]

Re: New clutch sheave... now won't run...**movie posted on post 17** PROBLEM SOLVED!

EDIT: I have posted a movie on post 17.


Hi everyone. I have a 660 rhino that ran like a champ. Started easy, idled great and was smooth all the way to full throttle, never any hesitation.

I pulled the clutch sheave apart and swapped it for a JBS sheave with new weights. I also pulled the assembly off the transmission side and changed to the recommended spring.

Put it all back together and now it won't run worth a darn. Here's the odd part. If I put my hand over the intake it'll sit there and idle. As soon as I start to let it get more air it sputters and dies.

So I'm thinking it's a tuning issue now. (Seems like it's lean).
Anyone ever ran into needing tuning after changing a sheave? Seems odd but I'm new to UTV's so I don't know what's normal. Thanks!

pretty amazing the water got in the tank will you were working on the clutch lol.

 

[avery4jc]

Re: New clutch sheave... now won't run...**movie posted on post 17** PROBLEM SOLVED!

I pulled it off the trailer from our last trip, filled the tank up and pushed it over to the side of the garage. I didn't run it on this tank of fuel until I was doing the sheave work.