Author Topic: OEM Parts  (Read 2437 times)

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Offline dirtjunkie85

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OEM Parts
« on: February 16, 2011, 07:56:11 AM »
Did anyone else know that Rocky Mountain MC is now carrying OEM parts. OEM clutch plates basically saved my life.  :lol: I can't stand after market clutch kits. They never last as long or work as well.

Offline dirtjunkie85

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Re: OEM Parts
« Reply #1 on: February 23, 2011, 07:58:18 AM »
Thought I'd share, Rocky Mountain ATV is sending 10% off offercodes out through email after you but something. Good deal.

Offline kxpegger

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Re: OEM Parts
« Reply #2 on: February 23, 2011, 09:09:11 AM »
That's always been my experience. OEM overall is hard to beat.
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Offline 1989kawasaki

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Re: OEM Parts
« Reply #3 on: February 23, 2011, 11:06:05 PM »
sooo when i replace my clutch on my 89 kx250 should i replace the friction plates with oem parts? and the steels with after market? i heard the oem aluminum plates were garbage
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Offline meangreen

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Re: OEM Parts
« Reply #4 on: February 24, 2011, 03:04:00 AM »
I have to agree with others - the OEM fiber drive plates are great.  But the aftermarket will function well, too. 

On my 89 250, the aluminum driven plates wore out quick.  I replaced them with a EBC dirt digger clutch set that had steel driven plates.  This will increase durability many times over and give a little bit of the effect of a flywheel weight.  It is not attached directly to the crank and spins at different rpm from the crank, so it is not quite the full effect.

Motocrossers use aluminum plates to keep drivetrain weight to a minimum.  Similar to aluminum sprockets, lightweight standard chains, etc.  This sacrifices durability for maximum horsepower transfer and throttle response.

Functionally, the EBC plates don't have the quality control that the OEM plates have, i.e. flatness and dimensional tolerance.  This causes a bit of clutch drag on the EBC until you break it in.  In my experience, the OEM replacement never had the clutch drag effects after installation. 

Tip: always soak the fiber drive plates in  tranny fluid before installing - I normally soaked overnight.  You will find that the plates will fit quite nicely inside of an old steel style coffee can.
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Offline don46

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Re: OEM Parts
« Reply #5 on: February 24, 2011, 03:57:07 AM »
When it comes to clutches I always use OEM, with the exception of replacing the AL plates with steel from Barnett on the 500 otherwise OEM.
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