Maintenance & Technical > KX500 Original

KX 500 Flat on Mid and top end

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lsampson:
One more thing, is the stator woodruff key seen simply by removing the left cover, or how would I go about that?

lsampson:
Well Boys And Girls, I Rode The K5 And It Ran Like A Raped Ape! I Noticed When I Put Her Back Together That The Reed Cage Was Installed Upside Down(The Arrow Was.up) So Between The Valves, Old Fuel, Reeds, And Top End, Something Did The Trick!

But....

I Did Notice That WIth The New weisco Piston, It Rattles Alot At Idle. During Insallation, I Checked The Ring End Gap And It Was Within Specs (0.030"). Do Wiseco Pistons Slap At Idle Until They HeaT Up? It Did Quiet Down Some Once It Was WarM, But It Was Still Present. Thanks Gents.

sandblaster:
Hmmmm.
For a stock set up you are .002" past the service limit:
1987-2004 New .15-.35mm or .006-.014" Service limit .7mm or .028"
I know Motorrad had some problems with getting rings from Wideco that were in spec.
Sounds like that hasn't changed any.
The rattle.... I'm wondering if you could use the kipps bolt mod....
I know my bike needed it after I put in a new piston.

Motorrad:
What was your piston wall clearance..


End gap should be half that..   Makes me think hole is too big...   So loose piston wall.  Thus. Rattle

sandblaster:
Thats why they call them Wideco now   :-)

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