YS 120 FZ valve gapping

[David Harmon]

You probably shouldn't use a feeler gauge unless the engine has never
been run.
The reason is as the engine runs, the valve stem starts 'peening' a
dimple into the rocker arm.
If you put a feeler gauge into a well run engine and then adjust the
valve, the clearance will be way too loose.
IMO, the correct way to do this is to adjust the valve without a gauge
for just a slight amount of free play when you
move the rocker arm
 
Regards

Dave Harmon
NSRCA 586
K6XYZ[at]comcast[dot]net
Torrance, Ca. 
-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Rcmaster199 at aol.com
Sent: Monday, April 12, 2004 3:46 PM
To: discussion at nsrca.org
Subject: Re: YS 120 FZ valve gapping
 
.004". Check with a feeler gauge




Subj:YS 120 FZ valve gapping 
Date:4/12/2004 2:24:15 PM Eastern Daylight Time
From:aabdu at sbcglobal.net
Reply-to:discussion at nsrca.org
To:discussion at nsrca.org
Sent from the Internet 



Hello all, I have a silly question, what is the gapping on the YS120FZ.
I have set the valves before, but do not remember what the gap should
be.

TIA
Thank you
Anthony
 
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