G21 help.

Cdebo1 · 04-11-2015, 09:06 AM

Ok so I just retested I am getting just under 140 cold and fresh. 150ish with oil

Cdebo1 · 04-11-2015, 09:10 AM

Ok so I am getting 140 compression and 150 with a little oil in the cylinder. But attached is what assume should be the weight. All the rollers are flat and I may as well change the rollers and weights. But online hat totals to over 300$ lucky I got a buddy that's a yamie dealer and I can get complete primary clutch for under the 3 mark :) should I just replace the entire thing

smallblock450sl · 04-11-2015, 09:20 AM

Can you post a picture of the clutch?

Cdebo1 · 04-11-2015, 09:38 AM

Here is he clutch

Dave in VA · 04-11-2015, 09:50 AM

If it's missing parts and is that messed up, I would just go ahead and get a new OEM clutch and be done with it.

Aftermarket clutches from China aren't that great.

smallblock450sl · 04-11-2015, 09:52 AM

Why the heck is the weight missing

Take the belt off, grab the clutch and move it side to side to see if the bushings in the sliding sheave are worn. Also check the face (were the belt rides) to see if the aluminum is worn. Is the place the missing weight attatches broken? If all checks good, I'll send you a good used weight/bolt and plastic washers. If doesn't check out good...get the whole new OEM clutch assy.

Cdebo1 · 04-11-2015, 07:28 PM

Thanks smallblock i called my local yamaha dealer that i am good with for boat parts here in miami and i order new....COMPLETE Clutch Assy. New Throttle to Governor Cable (opened the ACCEL plate and found a make shift cable tie wrapped to accel ....OMG) New Governor to Carb cable new carb gaskets and air cleaner gaskets......hopefully swap this out next week and boom goes the dynamite!!! on another note..Are there any aftermarket mufflers for the 351 that will quite it down a bit???

P.S. After i had it all apart and just ran the cart with my hand on the governor she ran well....Seemed to get a good amount of speed so i am thinking all will be well once i get these parts correct i can't believe people rig things like this........

cgtech · 04-11-2015, 08:04 PM

Glad to see you are going to fix it right! I cant stand it when people 'rig 'em up with junk, then get upset when you tell them that their rig-job is why it does not do what they expect.

Cdebo1 · 04-11-2015, 08:13 PM

Ha.....me too. Some people just don't thin. thanks CG I will post Picts as I go along.

04-11-2015, 09:06 AM	#11
Cdebo1 Getting Wild Join Date: Apr 2014 Location: Florida Posts: 129	Re: G21 help. Ok so I just retested I am getting just under 140 cold and fresh. 150ish with oil

04-11-2015, 09:10 AM	#12
Cdebo1 Getting Wild Join Date: Apr 2014 Location: Florida Posts: 129	Re: G21 help. Ok so I am getting 140 compression and 150 with a little oil in the cylinder. But attached is what assume should be the weight. All the rollers are flat and I may as well change the rollers and weights. But online hat totals to over 300$ lucky I got a buddy that's a yamie dealer and I can get complete primary clutch for under the 3 mark :) should I just replace the entire thing

04-11-2015, 09:20 AM	#13
smallblock450sl Sometime's............ Join Date: Oct 2007 Location: Tacoma Washington Posts: 11,875	Re: G21 help. Can you post a picture of the clutch?

04-11-2015, 09:50 AM	#15
Dave in VA maintaining a low profile Join Date: Oct 2009 Location: SW Virginia USA Posts: 6,316	Re: G21 help. If it's missing parts and is that messed up, I would just go ahead and get a new OEM clutch and be done with it. Aftermarket clutches from China aren't that great.

04-11-2015, 09:52 AM	#16
smallblock450sl Sometime's............ Join Date: Oct 2007 Location: Tacoma Washington Posts: 11,875	Re: G21 help. Why the heck is the weight missing Take the belt off, grab the clutch and move it side to side to see if the bushings in the sliding sheave are worn. Also check the face (were the belt rides) to see if the aluminum is worn. Is the place the missing weight attatches broken? If all checks good, I'll send you a good used weight/bolt and plastic washers. If doesn't check out good...get the whole new OEM clutch assy.

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04-11-2015, 07:28 PM	#17
Cdebo1 Getting Wild Join Date: Apr 2014 Location: Florida Posts: 129	Re: G21 help. Thanks smallblock i called my local yamaha dealer that i am good with for boat parts here in miami and i order new....COMPLETE Clutch Assy. New Throttle to Governor Cable (opened the ACCEL plate and found a make shift cable tie wrapped to accel ....OMG) New Governor to Carb cable new carb gaskets and air cleaner gaskets......hopefully swap this out next week and boom goes the dynamite!!! on another note..Are there any aftermarket mufflers for the 351 that will quite it down a bit??? P.S. After i had it all apart and just ran the cart with my hand on the governor she ran well....Seemed to get a good amount of speed so i am thinking all will be well once i get these parts correct i can't believe people rig things like this........

04-11-2015, 08:04 PM	#18
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: G21 help. Glad to see you are going to fix it right! I cant stand it when people 'rig 'em up with junk, then get upset when you tell them that their rig-job is why it does not do what they expect.

04-11-2015, 08:13 PM	#19
Cdebo1 Getting Wild Join Date: Apr 2014 Location: Florida Posts: 129	Re: G21 help. Ha.....me too. Some people just don't thin. thanks CG I will post Picts as I go along.