Subject: Re: huh?
Author: Patrick Hayes
Date: Aug 13, 2001, 5:37 PM
Post ID: 1707856375
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In a message dated 8/13/01 4:59:52 PM Pacific Daylight Time,
chopp-@hotmail.com writes:
| SOme texts say that the first mark on the generator pulley from the left is left cyl TDC and that the second mark from the left is for static or dynamic timing Others say that the second mark is TDC and the first mark for timing. |
Well, I seem to recollect my old Eldo had three marks. Using a wrench, turn
the engine in the direction it normally turns (clockwise when you are up
front by the wheel looking back toward the pulleys.
The marks are mostly together with a big, long empty space between. The
first mark you bring up to the timing arrow will be the high speed, maximum
advance mark (around 33 degrees BEFORE TDC). After a bit more space you will
bring up the static or idle timing mark (around 5 degrees before TDC). The
very LAST mark you bring round will be the TDC mark.
Forget the left and right stuff for the marks. You are timing the LEFT
cylinder of the bike (as viewed astride the saddle). Since both idle and
full speed timing are required to occur in ADVANCE or BEFORE TDC, then by
deduction, during normal rotation, those marks must come to the timing arrow
BEFORE the TDC mark does.
If you have only two marks, it depends on how far apart they are. Could be
high speed and idle, could be high speed and TDC, could be idle and TDC.
You'll have to probe in the cylinder with a stick to try and determine the
precise TDC point so you can then determine what these marks are referenced
to.
Patrick
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<FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 8/13/01 4:59:52 PM Pacific Daylight Time,
<BR>chopp-@hotmail.com writes:
<BR>
<BR>
<BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">SOme texts say that the first mark on the generator pulley from the left is
<BR>left cyl TDC and that the second mark from the left is for static or
<BR>dynamic
<BR>timing
<BR>
<BR>Others say that the second mark is TDC and the first mark for timing.
<BR>
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"></BLOCKQUOTE>
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">
<BR>Well, I seem to recollect my old Eldo had three marks. Using a wrench, turn
<BR>the engine in the direction it normally turns (clockwise when you are up
<BR>front by the wheel looking back toward the pulleys.
<BR>
<BR>The marks are mostly together with a big, long empty space between. The
<BR>first mark you bring up to the timing arrow will be the high speed, maximum
<BR>advance mark (around 33 degrees BEFORE TDC). After a bit more space you will
<BR>bring up the static or idle timing mark (around 5 degrees before TDC). The
<BR>very LAST mark you bring round will be the TDC mark.
<BR>
<BR>Forget the left and right stuff for the marks. You are timing the LEFT
<BR>cylinder of the bike (as viewed astride the saddle). Since both idle and
<BR>full speed timing are required to occur in ADVANCE or BEFORE TDC, then by
<BR>deduction, during normal rotation, those marks must come to the timing arrow
<BR>BEFORE the TDC mark does.
<BR>
<BR>If you have only two marks, it depends on how far apart they are. Could be
<BR>high speed and idle, could be high speed and TDC, could be idle and TDC.
<BR>You'll have to probe in the cylinder with a stick to try and determine the
<BR>precise TDC point so you can then determine what these marks are referenced
<BR>to.
<BR>
<BR>Patrick</FONT>
</HTML>
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