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Cal
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Sun May 14, 2017 2:35 am |
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Joined: Sat Feb 25, 2017 11:51 am Posts: 588
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Hi, Got thru the carbs and gas tank, the motor turns over and looks good so far. The valves are running between .004 and .006 and the closers nil to .002. What are these suppose to be? and are these close enough to try and see if the motor will run.
Thanx, Clay
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wdietz186
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Mon May 15, 2017 12:14 pm |
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Joined: Thu Oct 14, 2010 7:30 am Posts: 174
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Those specs are in the ball park, I think the opener spec on most all of the cams is .004", looser on the exhaust valves OK due to higher heat especially the vert. cyl. Can you turn the shim on the nil closers? If so you should be good.
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Cal
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Tue May 16, 2017 6:30 pm |
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Joined: Sat Feb 25, 2017 11:51 am Posts: 588
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wdietz186 wrote: Those specs are in the ball park, I think the opener spec on most all of the cams is .004", looser on the exhaust valves OK due to higher heat especially the vert. cyl. Can you turn the shim on the nil closers? If so you should be good. Thanx, I will double check that one. I am going to put new belts on too.....I hear thats a good time to spin the cams to ensure no binding. Regards, Clay
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wdietz186
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Wed May 17, 2017 2:52 pm |
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Joined: Thu Oct 14, 2010 7:30 am Posts: 174
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If you try with the dots lined up the cam on the horiz. cyl will stop as the valves hit the piston. Also note the intake on the vert. will be open with the marks lined up.
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Cal
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Wed May 17, 2017 6:34 pm |
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Joined: Sat Feb 25, 2017 11:51 am Posts: 588
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wdietz186 wrote: If you try with the dots lined up the cam on the horiz. cyl will stop as the valves hit the piston. Also note the intake on the vert. will be open with the marks lined up. Thanx.....dont spin doctor unless I need to take the heads off....
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edgefinder
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Thu May 18, 2017 9:08 pm |
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Joined: Mon Nov 08, 2010 6:09 pm Posts: 14
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If the pistons are down a ways, belts off, you can spin cams by hand. Its good to check open and close valve shim clearance while rotating the cam back and forth in each valve closed area. The clearance varies and you don't want tight spots on closer shims. When I was racing mine it didn't take long to figure out the wire valve keepers don't hold up and I got the MBP ones. I highly recommend them.
Beautiful bike you got. I need to bring mine out of retirement.
Luke
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Cal
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Post subject: Re: F1 Critique, now turns over & valve clearance Posted: Sat May 20, 2017 10:36 am |
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Joined: Sat Feb 25, 2017 11:51 am Posts: 588
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edgefinder wrote: If the pistons are down a ways, belts off, you can spin cams by hand. Its good to check open and close valve shim clearance while rotating the cam back and forth in each valve closed area. The clearance varies and you don't want tight spots on closer shims. When I was racing mine it didn't take long to figure out the wire valve keepers don't hold up and I got the MBP ones. I highly recommend them.
Beautiful bike you got. I need to bring mine out of retirement.
Luke Thanx Luke, and all for the responses...... Luke.....yes, you better get your bike out and give us some details......
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