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Clutch Mod with Pics (Neil aka C-Leigh Racing Mod) - Pic Heavy
Quote from: hickwheeler;27359
since I'm New to the r what does this accomplish

By adding washers to the springs you are compressing them more and increasing the spring pressure therefore increasing the clamping power of the clutch.

By adding a thicker steel clutch plate from a 400ex you also compress the spring more and increasing the spring pressure. The reason the thicker plate compresses the springs more is the clutch plates and fibers assembly is now taller on the inner hub so the pressure plate is now pushed out farther but the springs are held in by the inner hub so with the pressure plate farther out the springs are compressed even more.

Now you may need to add a small washer like shim behind the pressure plate to get the clutch arm located correctly because of the extra thickness, in the case of PNWrider the clutch stack is .64mm or .025" taller, this may not seem like much but that is allot in clutch arm movement. IMO a .020-.025" thick washer should be added to the push rod bearing/pressure plate

Now IMO you can do a clutch mod a couple other ways also

1 - add another 250r steel disc and double it up with another steel disc in the clutch assembly, normally this is installed toward the center area of the clutch assembly this will add 1.30 mm to the clutch plate and fiber stack so you will want to add about .050" shim washer at push rod bearing/pressure plate, the 250r springs can be used with mod but they get very stiff and normally just drag guy will do this
The bad thing IMO about the extra plate is the extra rotational mass added which is normally not a good thing to add to the engine.

2 - instead of the thicker 400ex plate in Neil's mod try finding a washer that is .025 thicker than the oil drain washer being used in Neil's kit. this will accomplish the same thing as the thicker 400ex plate without the extra rotating mass.

Maybe Tony can cut us washers if that is possible to accomplish this

March 02, 2014, 08:46:10 AM
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250R Powered 450R chassis Retro Build Well, since it worked out once I had everything put together....it was time to tear it all down.....Powder Coat everything in the RETRO '86 Color scheme and re-assemble.

Just picked up the Frame this morning....Let the assembly begin..... :)


November 29, 2016, 10:58:54 AM
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Re: 250R Powered 450R chassis Retro Build She's finally a Roller!!!
June 15, 2017, 12:17:52 PM
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Re: Hybrid Engineering 363 sphynx dune build
July 14, 2017, 08:34:26 PM
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Re: starting my build here's a sneak peak at the custom flip top fender I made.
December 24, 2017, 11:52:28 AM
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Like feature OJ, Croat, and Tbone it'd be nice to see alike feature under comments if possible.
January 28, 2018, 08:55:49 PM
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Re: Harness The harness showed up yesterday. Didn't realize it till my phone updated it was in the mailbox so I got it around 10pm. Hahaha
I'll be gone most of the day today but if I get time tonight I'll take some pics. And possibly tomorrow pull the one I have off and compare em to each other. Kindof a review side by side comparison.
So far I like it, I'm gonna wrap it with something though cause it comes with heat-shrink. It's probably not needed but u have some harness sleeve I bought months ago.

I'll update this in the next day or two with pics. Or Maybe start a new thread with pics comparing them.

February 13, 2018, 10:05:50 AM
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Re: Like feature @Skeans1 - Like feature has been added.
February 14, 2018, 09:01:43 PM
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Re: How to repair lsr pro peg crack? Took it to another guy and he said no problem. 
February 16, 2018, 05:51:00 PM
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Re: starting my build its here led 350 G
February 19, 2018, 06:37:28 PM
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