Maintenance & Technical > KX500 Original

Reducing Power - I'm a wuss!!!

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TomL:
I ride mostly in tight woods and the massive power is difficult to handle.  I use 13/52 sprockets(1st gear was way too high) and a flywheel weight.  I recently reduced the silencer opening to 3/4" and put a cover on the airbox with a small opening.  This made it run very rich, so I'll have to drop the main jet a step.  The rear sprocket is aluminum and I think I would be better off with steel to reduce response at the rear wheel.  Any other ideas???  Anybody else go down this road before???

mikesmith:
I ride tight technical singal track,no fly wheel weight and low gearing because I like it to hit hard.I would suggest spending more time on the bike and giving yourself a chance to get used to it in the tight.If thats not the answer you want how about the auto clutch (theres a post here somwhere on it),It would be your best answer I think.Or a Moose reed spacer,what kind of pipe are you running?Reduce compression,try not running the power valve.But I still say give it time and that power will grow on you!

TomL:
Thanks Mike!!!  I'm running the stock pipe.  I never thought of a reed spacer.  What effect will that have?  How do you reduce compression?  I have an idea!!  What would happen if I put a washer with a slightly smaller opening than the carb at the exit end of the carb.  I could just match the washer O.D. to the carb and slide it into the boot before putting in the carb.    Wouldn't that restrict air/fuel flow?  I don't think that would even require rejetting.  Does that make sense???  I could try different I.D.'s until I get the desired power.  Sounds good anyway.  Would it work???

hughes:
Toml,

The reed block spacer adds more punch at the low to mid range but it can smooth the power. Have you tried different gearing :?: Like 14/47 or 14/45 you can change how aggressive the power is by the gearing. There is a chart here some where do a search. Hope this helps

Timbowe:
Time behind the wheel! Power is in throttle control. Smoothness is the key.

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