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We have a question here at Niskygarage yet again! What is the valve clearance for the intake and exhaust? We can't find any info in our manuals and everything we find on the internet is different.
Oh, by the way you should check out the site: http://niskygaarage.logical.net We have the headlight mount fabbed up and I think there are a few pics of the engine almost done. We are hoping the cam is in right. How can we tell if it is 180 out? When we have the marks lined up the points side cyl has the lobes pointing up and toward the rear of the motor. Does that sound right?? Well if any one reading this is in the Albany-Schenectady NY area we are going to have our 2nd article in the Gazette in a few weeks. Also the Saratoga Auto Museum has asked us if they can show the bike in their upcomming motorcycle exibit. There are going to be a whole bunch of celebrity bikes on display including one of Evil Knivel's xr's MAN. Now there is a realistic hero! Anyone can break bones and be a holigan! Anyway thanks in advance
Richie
 

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If it's typical of most all honda twins.... .002" on both intake and exhaust. I usually go .003" to be safe. For megacycle or other high performance cams .006" intake and exhaust is usually recommended.

Run it a bit large until you know the engine is working well. At .002" just takes a tad of valve recession to end up with zero clearance and start burning exhaust valve seats. Going a bit large will just make it "tap" a bit more while it's running.

Remember to set them with the engine cold.
Can't help you with the cam question.
JohnnyB
 

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If it's typical of most all honda twins.... .002" on both intake and exhaust. I usually go .003" to be safe. For megacycle or other high performance cams .006" intake and exhaust is usually recommended.

Run it a bit large until you know the engine is working well. At .002" just takes a tad of valve recession to end up with zero clearance and start burning exhaust valve seats. Going a bit large will just make it "tap" a bit more while it's running.

Remember to set them with the engine cold.
Can't help you with the cam question.
JohnnyB
 

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Richie... .006" perfect for megacycle...even with everything brand new....plenty of room for everything to seat...recheck it after the first hour or so of running.
JohnnyB
 

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Richie... .006" perfect for megacycle...even with everything brand new....plenty of room for everything to seat...recheck it after the first hour or so of running.
JohnnyB
 
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