Making forks from the mid 80's work better

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8/31/2018 10:19 PM

I'm looking at picking up a 1987 KX250 which I'd use for vintage/mxgp racing. What was the hot setup for 87 KX conventional forks? I can't remember when Kawasaki went to cartridge style forks or if that is an option. If I could get some decent 89 46mm's I'd be set. I also have some 91 USD forks.

Or, would it be better to just revalve the stock conventionals?

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Ride like a girl!!!
Insta queenofspodes
2017 KTM 250 SX build thread
2016 KTM 500 EXC-F
Current project: 2007 Kawasaki KX250-R7 retro build
Current project #2: 1987 Kawasaki KX250-E1 rider/racer resto
1989 KX125 resto
1987 RM250 resto

8/31/2018 10:45 PM

Race Tech Emulators if you don't want to go through a big swap project. The 89 KX250 forks were very good.

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The older I get, the faster I was.

9/1/2018 9:55 PM

queen of spodes wrote:

I'm looking at picking up a 1987 KX250 which I'd use for vintage/mxgp racing. What was the hot setup for 87 KX conventional ...more

I race/ride a 86 KX250 frequently... After a lot of testing, try 18oz of Mobil 1 5W20 Full Synthetic Motor oil in each leg... I think you will be very happy with the fork performance! Photo

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9/2/2018 12:01 PM

Good article about improving the '87 KX forks.

Not really useful, because of the impossibility to find such a kit nowadays(I think).

Anyways:

Photo

Photo

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9/2/2018 1:54 PM

88' KX forks were cartridge. They should slide right into the stock 87' triple clamps. Not sure if the wheel or axle changed in 88' or 89' though.

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