Maintenance & Technical > KX500 Original

Quite possibly the stupidest question ever--but I'm ready!

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SupermotoFan:
Joking around with my friend: I said I wanted a plonker trailbike as I'm pretty inexperienced, and I end up with a KX500.  He replies "just put two base gaskets on it--that'll make it easier to ride!"

Now, I know he was joking.  But upon further thought--Is this a reasonable option?

Perhaps, it would start easier, and make less horsepower...

It's got me thinking.  Has anyone out there heard of such a thing--or better yet tried it?

Thanks in advance.

alan:
Easier starting can be accomplished by adding flywheel weights, also reed spacer helped mine. If you were going to do trail riding weights would be the way to go! Adding gaskets will lower the compression ratio which will lower the HP, however I don't think it will do anything for starting except make a little easier to kick. :-D :-D

gowen:

--- Quote from: alan on February 08, 2007, 04:36:58 AM ---Easier starting can be accomplished by adding flywheel weights, also reed spacer helped mine. If you were going to do trail riding weights would be the way to go! Adding gaskets will lower the compression ratio which will lower the HP, however I don't think it will do anything for starting except make a little easier to kick. :-D :-D

--- End quote ---

Actually it is close to using a thick head gasket and it does actually give more HP up top at the expense of down low. I never doubled the base, but I did use thick top-end gaskets..

Now this is of course you have the porting set up and the ignition set to accept the placement of the jug.. (huh?)

don46:
installing 2 base gaskets will reduce compression, of course it also affects the squish are and the port timing, when done correctly it can make more horsepower. what year K5 are we talking? from about 90 on the flywheel was heavier, in fact it's quite heavy, you could add more weight to smooth out the power some, might help with the starting.

gowen:
Flywheel weights??  :-o :-o :-o  :evil:

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