Maintenance & Technical > KX500 Original

Suspension - Hi Speed Comp vs Comp vs Springs

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Sharc:
My suspension's revalved by ACME, with .43 fork springs and (stock) 5.8 shock spring. I'm 5'10 230 w/gear. Feels better than any bike I've owned, but there's a spike when I hit square-edge bumps at 20-40mph, mostly the fork, but the shock too gives a harsh jolt when I hit a sharp edge just wrong....Also when the front end comes down from a wheelie too fast the forks feel harsh. My guess is high speed comp is a little stiff. Any comments...?

Gracias,

Sharc

Paul:
What weight fluid are you using?

Why the hell did they put a fork spring for a 180lb'er in there  :blink:

MIKECALDERA:
Whats up Brother. I'm 200lbs and running 46 with ten weight oil.

I hope they didn't supercross your valves reducing oil flow.

Better get out your specs on what they did. I can't answer your question when I don't know what was done.

I can suggest that if your a Novice or trail rider your springs are perfect. If you do any type of Motocross immediately ebay the springs for 46 or 48. Go to racetech.com and plug in your numbers w/o gear.

Yes, try to soften the compression and rebound seperately and two clicks at a time.

If they built your forks you should be ok but take the time and dial them in.

One last thing: Use a tie wraps around the fork legs and gently secure it. Then try to bottom it without killing yourself. Maybe a small jump or mid jump.

Did you reach full travel? Oil is for the last 4 inches of travel.

I'm guessing they added too much oil to stiffen them up for your weight when they should always use less oil (saves seals )and stiffer springs.

If you reach full travel, the solution is in the clickers. If not OUCH. Open your caps/ airscrew and remove some oil.

Good luck :roll:
Mike

Paul:
Sharc, I'm 205 and run 1/2 7wt + 1/2 10wt @ 90MM with a .46 spring (biggest you can get for the '01 46MM) BUT, I informed my tuner that I raced Open Expert and needed to take a G-out at 100+ and that's exactly what I got. I'll take it to Speedworld and MX it - nothing like a dez sled showing up some youngunz on thier 250's ;) OR with a slight twist of the screw driver I'm back in the dez.

I also run a softer spring on the shock, a 5.4 with medium weight. As Mike recommeded, get that sheet out and post the spec's for what they did and we'll be happy to explain it and make suggestions.

Sharc:
Cool. I'll get the specs over the weekend. My K5's a 2002. I'll check all the clickers too. If I can cush up the ride that'd be awesome. I've been riding since I was 11 (now 46...) and I'm in pretty good shape - not a novice fer shure....Raced 5 yrs in Ca dez, 3 yrs in Connecticut rocks back in the 80's-90's. If you can get there on a bike, I'll get there too and I probably wont be last...Favorite rides are rocky single track and 40-50 mile desert loops.

Thanks

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