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cole40

2000 Yz426f Forks

3 posts in this topic

Hey guys, my left fork is leaking a little so I plan on replacing my fork seals and changing the fork oil while I am at it. Any tips for doing this? I have BRP forks. Thanks for any help. 

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Use the correct size seal driver. Place plastic wrap over the fork tube so the hole doesn't cut the seal when you slide it over.

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Might hijack this thread a little, as nobody responded to mine.

 

I know my forks were leaking a little. I went riding at Hapin Acres last week. After landing hard on a double, the forks bottomed hard. It seemed like after that the forks got pretty soft and started to bottom a lot. 

 

I am 215lbs, and I don't know the bikes history. I am going to assume that the springs are stock. So yes, I am probably a little heavy for the stock springs. The suspension as a whole, 2000 yz426, seems a little soft to me. It is much softer than my buds 2006 crf250. 

 

Did I just run too low on oil? Can something "break" inside the forks that would make them suddenly too soft? I am no Chad Reed, so I don't need a custome suspension for clearing triples. 

 

I am going to take them apart and replace the seals, bushings. What else should I look for? Can I tell what the springs are (stiffness)? Is it true that Mobil One Synth ATF is around 7wt, or a little heavier than the recommended -01 oil? Can I use this to help a little? I don't ride that often, and I don't want to dump a ton of money into an old bike.

 

Thanks for the advise guys!

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