Am i expecting too much?

mattrourke

Hey everyone,

I've been battling a few things since restoring my old G16 cart. I finally put on a brand new OEM carb and adjusted the valves and new ignition coil to eliminate most possible issues. The last time i loaned it out, two guys had trouble going up hills at the course. with it being winter (and not much of a golfer even in the summer) it is hard to test if the things i changed fixed this problem. I have always been able to pull up to a wall and spin the back tire(s) on the smooth pavement. I tried pulling up to a sea can that i have outside and it would not spin the tires on the rougher pavement and instead of the tires spinning, the belt was slipping at the drive pulley. The engine dies a bit but stays pretty strong. Is this typically the weakest link? Obviously something has to give, just wondering if this is what would normally give or should i be rebuilding the clutch next? I'm just wondering if perhaps the belt is slipping on the hills?

thanks,
Matt

BGW

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Dave in VA

What is the condition of the belt and clutches? The belt should be 1 3/16" wide and be at the top of the secondary when the cart is at rest. The sheaves should be smooth and not cupped or grooved. The ramps and slides need to be in good condition. Check the rollers in the primary for flat spots.

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mattrourke

I finally got in to the shipping container to get the cart out and take a look at the clutch. The belt is new since I've owned it which is only a couple rounds of golf worth of actual driving. The sheaves seem to be fairly smooth and not too obviously cupped but I didn't put a straight edge on them. Perhaps you may identify a problem from these pictures. Thanks for the help!

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cgtech

If you are disappointed that it doesnt break the tire free against a "wall", yes, you may be expecting too much. It was originally designed for playing rounds of golf, not for towing dump trucks. It looks like your rear clutch might have problems too (possibly snap-ring behind spring seat has slipped back, common issue). It doesnt overall look like it's in the prime "doing burnouts & kicking ***" shape you are selling it as. (Awesome motor, prime condition clutches, awesome belt, fit for fighting shape).
The "does-burnouts" drive belt with crap flaking off is only one of the dead giveaways.
Lifted/big tire/stock motor/does burnouts, I'm calling BS. (I have a lifted, stock motor yamaha)

Your primary clutch is likely roasted (seen grease lately?), belt is garbage, secondary clutch seen grease lately? (One pump of grease each, No extra pumps to "make it better").. Yamahas OEM J55-G6241 belt is the bare minimum you should buy, otherwise buy badass kevlar ones, really, the ones you wont ever need to replace for years are only a few bucks extra. A stock OEM belt is good for 4 years maybe for "good as new performance", yours is clearly older than that, a "top quality" kevlar belt will live longer, a cheapo belt will not deliver "good as oem new" even when new, and will be toast in 2-3 years (dont waste your money there). I have a lifted cart, and even OEM belts didnt last too long for my use. Got a good one & havent needed a new one since. The extra $20 was money well spent.

I dont think you have given us an honest assessment of your cart, based on the pics you sent.

Take it as you will, after all, this is free advice from people on the internet who you never met. (& probably not 12 years experience with yamaha factory certification)

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smallblock450sl

Looks like the secondary input shaft circlip has slid out of it's damaged groove. They sell a special spacer to fix that problem. Pretty soon, if not already, the spring seat will be rubbing on the transaxle case. That causes it to loose preload.

Dave in VA

The OEM spring will compress over the years, which along with the grooves on the sliding sheave and the probably worn ramps on the spring seat, will hinder overall performance. A new secondary from Plowmans, along with new ramps, will be a great improvement.

Pics of the spacer, ramps and springs. New ramp on the right, new spring in the middle, u-max spring on top.

https://www.plowmanscarts.com/parts_g_16_g_22.html

https://www.plowmanscarts.com/carts....1581013936&v=2

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mattrourke

Thank you guys for the quick reply. So cgtech, you are suggesting new primary clutch and a new belt and then based on Dave's suggestion, new secondary, spring and ramps. I don't mind putting in the work and money to get this best as possible. Cgtech, didn't mean to mislead on the condition of the clutch, I really didn't know what to be looking for to determine its condition other than "all the pieces seem to be there", and the fact that it will 100% break the tires free on the pavement of my shop but shop pavement is of course nice and smooth. I would say that clutches are where i lack knowledge the most so everyone's help is greatly appreciated. As for primary clutch is it best to go OEM or is there an aftermarket option i should be looking at? I'm in Canada so I'm limited in what i have access to without paying hundreds in freight. Ill start compiling a list from the Canadian suppliers i deal with and maybe i can check with you guys to see if it looks good. Got a couple more months of snow here still bit hoping to get it ready for spring.

Thanks again!

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cgtech

Generally, the primary clutch is rebuildable. Usually it needs bushings, seals, and rollers. Take the gold cover off & belt off & spin the rollers with your fingers while looking for any flat spots. Flat spots on the rollers is usually what wears the bushings out due to uneven pressure.

mattrourke

So I went ahead and ordered a new primary and secondary clutch and installed them today. Admittedly, I did not go with Yamaha and went with cheaper aftermarket parts. I believe i set the rear spring to B1 and i seem to have less torque than I did before changing it all out. I will try and post a video i took before the swap of spinning the tire in my shop... Now with the new clutch, it will not spin the tire. I also notice it has a pretty good shutter when it takes off from a stop. Can only go a short distance in my shop as it's snowing a blizzard outside. I also posted pictures of everything installed in case there is something obvious you guys can see.

http://cloud.tapatalk.com/s/5e828585...00330_5476.mp4

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mattrourke

https://www.youtube.com/watch?v=GGWUUqa5Gck


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