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xs650 > > High Performance Modifications > > Top End Work > > Timing the cam on a new motor |
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Timing the cam on a new motor
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RainLand 650Rider Supporter
Joined: Apr 04, 2006 Posts: 87 Location: Seattle
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Posted: February 15, 2007, 12:54 pm Post subject: Timing the cam on a new motor |
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I'm building up a 447 from a box. Any good ideas on finding the right
index marks and timing the cam?
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5twins Full Member
Joined: Aug 05, 2006 Posts: 1616
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Posted: February 15, 2007, 1:42 pm Post subject: Re: Timing the cam on a new motor |
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deleted
Last edited by 5twins on September 13, 2009, 1:18 pm; edited 1 time in total |
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RainLand 650Rider Supporter
Joined: Apr 04, 2006 Posts: 87 Location: Seattle
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Posted: February 16, 2007, 7:53 pm Post subject: Re: Timing the cam on a new motor |
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Excellent! Complete with pictures for us "challenged" folks.
Thanks.
_________________ SR500 XS650 R1 |
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kingwj 650Rider Supporter
Joined: Sep 04, 2005 Posts: 801 Location: Delaware
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Posted: February 17, 2007, 9:24 am Post subject: Re: Timing the cam on a new motor |
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I'd suggest installing the cam tensioner after you install the cam and before butttoning up the motor. Rotate the motor and recheck the timing. I missed by one tooth because I didn't make this check. I was not happy.
_________________ Anyone can make a car stop, it takes a genius to make a car go fast!- Enzo Ferrari
1979 XS650F
1979 XS750SF
1972 Triumph Tiger |
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grizld1 Full Member
Joined: Jun 20, 2005 Posts: 594 Location: Carbondale, IL
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Posted: February 17, 2007, 1:31 pm Post subject: Re: Timing the cam on a new motor |
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Using a small dowel (I use a piece of bamboo barbeque skewer), you can jam-fit a line in the center hole in the end of the crank and pull it up across the camshaft center. With the cam chain adjustor installed and at normal setting, the notch in the cam boss should be positioned exactly parallel to the line at TDC.
_________________ It ain't whatcha got, it's whatcha can get to the ground! |
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RainLand 650Rider Supporter
Joined: Apr 04, 2006 Posts: 87 Location: Seattle
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Posted: February 18, 2007, 12:53 pm Post subject: Re: Timing the cam on a new motor |
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Thanks for the tips. i've just noticed that the person taking the motor
apart didn't mark the ignition points mounting plate either, so my
odds of getting all this timed on the first pass aren't good...
_________________ SR500 XS650 R1 |
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