Maintenance & Technical > KX500 Original

kx500 outlaw kart motor

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dave916:

--- Quote from: sandblaster on June 16, 2018, 02:41:27 AM ---Hmmm... I did not know that.
I'll have to pull the 88 cylinder off the wall and do some measurements...
Do you have the exhaust port height and width for the 86?

--- End quote ---

yeah i post a pic if in can find it

funkj:

--- Quote from: dave916 on June 16, 2018, 02:30:15 AM ---86/ 88 had all almost similiar port timing {120/180duration}
only real differance was main exhaust port on 86 is far smaller

Dont know where clmer got those specs



--- End quote ---

That makes better sense to me.

sandblaster:

--- Quote from: funkj on June 16, 2018, 03:25:03 AM ---Am I safe to assume the 86 cylinder is a 3 port exhaust with 2 drum valves and no main port flipper?

--- End quote ---

Yes, that is correct.

sandblaster:
Here is a pic of the 86 cyl.
Note: no decomp scallops and a smaller exhaust port then the 87-88

sandblaster:
Here is a 1988 Cylinder..

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