Better clutch?

[GreasyChris]

I have a couple of gt5 springs lying around. I'll measure them once I get a chance. I'm thinking the automotive v belt would probably work really well. That is such a great tip. Im sure alot of guys are going to be trying it even if they aren't having clutch issues. I know im gonna.

 

[GreasyChris]

Here's a Gt5 spring

 

[Spare_Parts]

Here's a Gt5 spring
View attachment 89430

Huh, maybe the older springs were longer.

Figured out how to cut the v belt lol. Sometimes I feel like an idiot!

 

[GreasyChris]

Huh, maybe the older springs were longer.

Figured out how to cut the v belt lol. Sometimes I feel like an idiot!

Maybe they are all different.

 

[FNTPuck]

I shimed the gt5 spring 5mm. If you have the zeda spring I would do the 5mm. The zeda here is 29mm tall. Never measured the gt5 spring but would guess it at 35mm or so.

So did you use a v belt? Which way did you cut it?

Didn't test the v-belt yet, but I have an unused one that I might cut up and try since I think it will work better. I tested a flat washing machine belt, which worked fine on my 47mm but with 8 pads is still a bit too grippy and doesn't slip the clutch well. I will be trying the v-belt instead since its even harder rubber, and then adjusting how many pieces I am using to get the right balance of slip/grip.

Wanted to test that today but might not get too since I plan on working on the 4stroke a bit.

 

[danlandberg]

I bought a PK 80 from BMW that has clutch problems from day one. The clutch pads were so hard and stuck in the cage they broke apart trying to get them out to replace. I had to adjust the clutch at least 5 times in a three day period. It would would not start after a run and has been slipping the whole time iv'e had it (8 days now). I adjusted the clutch so tight that with the clutch pulled in there is drag on the pressure plate and pads. I have called and emailed BMW several times over the last week with no reply. Upon inspection of a growling noise when running, I found the small bevel gear to be wobbly. When I took the screw out all the threads were damaged (factory cross thread). This engine has been a lemon and it's very disappointing. And I am very disappointed at BMW for not returning my calls or emails to find a solution for this piece of CRAP. The one on the right is out of my GT 5 Pro Racing it's to short.

 

[Guest-799093]

Not going to mess with that side. Did the bearings and thats it. Dave Amos has a video about the big pad setup. I'll look for it latter. I'm talking about the outer disc.

SUPER CLUTCH PLATE

This is a aftermarket heavy duty clutch plate that’s designed to with stand a lot of heat and abuse. The normal Chinese clutch plates are warped from factory and do not 100% touch the pads. This plate is 3x thicker and is 100% USA made with a cnc lathe.

zedamotorsports.com

Hello I went on site to look for clutch plate at Zelda Motors but Super Duty Clutch plate was not found?

 

[GreasyChris]

Hello I went on site to look for clutch plate at Zelda Motors but Super Duty Clutch plate was not found?

These are the clutches available now.

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Gen 6 Clutch Plate

Product Description The 6th and most advanced generation RDM clutch pressure plate. Fits all 50-100cc 2 stroke motorized bicycle motors, but the cover does still fit. RDM Gen 6 Clutch Plate provides hard and smooth engagement, enhanced cooling, and improved fade-resistance compared to stock...

rdmanu.com

 

[Jaycee604]

I had issues with clutch slipping too, but fixed it. I got a pretty rough sandpaper, and sanded the clutch plate where the pads touch, from the outside to the inside. Helped a lot!

You remember what grit you used and how long it lastest after that?

 

[Karl Snarl]

https://www.facebook.com/ryan.darragh.5 is the maker of the clutch plate.
Buy it here:
https://r-darra-mfg.myshopify.com/c..._iSGJEW0-6xtkQ5481T7ycrMt_eFsvmzY2hwWUQX5z8Lg

View attachment 89309

I know this is old, but I just ordered my Minnelli spacer from these guys because of your post. Thanks!!