2
210061741
Guest
Ok i ran my bike for a wile with no base gasket.
Ran good but lost a little low end.
Wouldn't rip until in the higher rpm range.
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A coupla days ago i added 2 base gaskets that were .045 inch thick each.
This shoulda raised the jug by .045 from stock.
I lapped the head and jug so i could remove the head gasket to keep the compression high.
I't hasn't been running so good.
Just dosen't rip and hit the high RPM's like it used to.
Allthough i seem to have better low end and idle.
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So the question is what really is optimum port timing for the HT?
An .045 inch change in either direction makes a big difference.
And thats not alot of material if you started grinding the ports.
Fortunatly i didnt do that.
I would like to trim the piston skirt and give it a try but geese. it would be nice to know what will happen before i do it.
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Has anyone done a port map for the HT ???
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Now i think tonight i'm gonna go back to 1 base gasket and see where things are at.
Iv'e had muffeler issues also with the expansion chamber and that could also be affecting things.
These motors are touchy.
With a little luck you can get it rocking down the road like you wouldn't believe.
Then change somthing a little bit and poof.
She aint runnin so great anymore.
O well least i work out this configuration on my old motor before my new one gets here.
Ran good but lost a little low end.
Wouldn't rip until in the higher rpm range.
---------------------------------------------------------------------
A coupla days ago i added 2 base gaskets that were .045 inch thick each.
This shoulda raised the jug by .045 from stock.
I lapped the head and jug so i could remove the head gasket to keep the compression high.
I't hasn't been running so good.
Just dosen't rip and hit the high RPM's like it used to.
Allthough i seem to have better low end and idle.
-----------------------------------------------------------------------
So the question is what really is optimum port timing for the HT?
An .045 inch change in either direction makes a big difference.
And thats not alot of material if you started grinding the ports.
Fortunatly i didnt do that.
I would like to trim the piston skirt and give it a try but geese. it would be nice to know what will happen before i do it.
-------------------------------------------------------------------------
Has anyone done a port map for the HT ???
-------------------------------------------------------------------------
Now i think tonight i'm gonna go back to 1 base gasket and see where things are at.
Iv'e had muffeler issues also with the expansion chamber and that could also be affecting things.
These motors are touchy.
With a little luck you can get it rocking down the road like you wouldn't believe.
Then change somthing a little bit and poof.
She aint runnin so great anymore.
O well least i work out this configuration on my old motor before my new one gets here.