how did you get to true t.d.c. when you put it together?????? and how did
you originally line it up?? you cant trust that mark that is stamped into
the flywheel from the factory i found that stamped mark to be off as much as
2 degress when using a digital gauge in the cylinder to get to true tdc.
From: "Olsonspower" <[EMAIL PROTECTED]>
Reply-To: [email protected]
To: <[email protected]>
Subject: Re: [F500] 494 Rotary valve question
Date: Thu, 1 Mar 2007 09:08:49 -0600
Ken
You need to buy a degree wheel from skidoo and a shop manual on how to
use it>
Greg
----- Original Message ----- From: "Kenneth Kirkland"
<[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, February 28, 2007 5:24 PM
Subject: [F500] 494 Rotary valve question
Hello all!!
In the course of trying to fire my problem child 494,
a rotary valve timing question occurred to me.
With the air cleaner off of a carb, throttle wide
open, rotating the primary clutch counterclockwise as
viewed from the pto end of the crank, and looking
through the carb throat with a flashlight, which
direction should the piston be moving when the rotary
valve is open for a particular cylinder? The little
bit of 2-cycle theory I know thinks the piston should
be travelling upward to create vacuum to draw the
fuel-air mixture in from the carb. It is currently
travelling downward. Am I all wet, or does my rotary
valve have serious timing issues?
Profuse thanks for any and all assistance,
Kenneth Kirkland
#18 MiDiv / Arkansas Region (77)
1991 KBS Mk. V
www.kirklandracing.com
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