Flywheel ID
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Cruiser
Joined: Apr 2010
Posts: 133
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From: West Central Indiana
Flywheel ID
Mick, or anyone else. On my '83 Roadster that is supposed to have an 1150 kit installed, here are what marks I see as the flywheels come around. A single dot, then a vertical line or groove, then four holes-one right after the other and finally what looks like a number 8 laying on its side or horizontally.
Is there anything else I should look for?
Is there anything else I should look for?
These are the timing marks from a stock flywheel. The line is the front cylinder advance timing mark, the dot is the front cylinder top dead center mark, the lazy eight is a rear cylinder timing mark; the holes are not significant AFAIK.
The next thing to find out is how much the cylinders have been bored. They could be STD [standard], or a multiple of .010 oversize up to .070 over which is the maximum. But to determine this you must remove a cylinder head; then either clean the top of the piston and see what is engraved there, or measure the cylinders/pistons. The usual procedure is to not do this unless there is another reason to pull the top end.
I have not done the calculations in a while, but i do not think you can get anywhere near 1150 by boring cylinders. And it is not a stroker crank.
The next thing to find out is how much the cylinders have been bored. They could be STD [standard], or a multiple of .010 oversize up to .070 over which is the maximum. But to determine this you must remove a cylinder head; then either clean the top of the piston and see what is engraved there, or measure the cylinders/pistons. The usual procedure is to not do this unless there is another reason to pull the top end.
I have not done the calculations in a while, but i do not think you can get anywhere near 1150 by boring cylinders. And it is not a stroker crank.
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Cruiser
Joined: Apr 2010
Posts: 133
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From: West Central Indiana
Yeah I was skeptical when I bought the bike, but then I didn't buy it just because it was supposed to have the kit in it either. The more I tinker with it and look around at this and that the more skeptical I become. It just doesn't look like to me that it's been apart before....at least not for some time.
Unless something goes bad I don't really want to pull a head off just to look around.
As for my other not running right issues, I haven't had a chance to look at the carb yet. I have a new set of 1 3/4" pipes coming. I replaced the hard dried out plug wires and pulled the plugs to take a look at 'em. They actually looked ok, light brown or tan with just a little black carbon around the edges. They were gapped close though, like .018-.020. I cleaned them, reset the gap at .042 and put them back in. I didn't get to ride it today and try it out because I'm still fooling with those cheezy forward controls that I bought......hopefully tomorrow.
Unless something goes bad I don't really want to pull a head off just to look around.
As for my other not running right issues, I haven't had a chance to look at the carb yet. I have a new set of 1 3/4" pipes coming. I replaced the hard dried out plug wires and pulled the plugs to take a look at 'em. They actually looked ok, light brown or tan with just a little black carbon around the edges. They were gapped close though, like .018-.020. I cleaned them, reset the gap at .042 and put them back in. I didn't get to ride it today and try it out because I'm still fooling with those cheezy forward controls that I bought......hopefully tomorrow.
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