Joined Sep 2007
782 Posts | 291+
???
Have a look at this link Taffy, http://www.megacyclecams.com/catalog/page12.pdf it says running clearance?
Cheers spanner.
Cheers spanner.
Joined Nov 2001
17K Posts | 773+
Ely, England
well i can't argue with the term 'running clearance' however, the standard gap is right because nothing has changed. the tappet clearance is a result of expansion and not based on power etc.
when i did the VALVE TIMING on my ducati the standard tappet clearances were increased just for that purpose. the idea being to get the correct valve duration first and then worry about the timing afterwards. this was particularly important for SOHC bikes where there has to be compromise.
regards
Taffy
when i did the VALVE TIMING on my ducati the standard tappet clearances were increased just for that purpose. the idea being to get the correct valve duration first and then worry about the timing afterwards. this was particularly important for SOHC bikes where there has to be compromise.
regards
Taffy
Joined Sep 2007
782 Posts | 291+
???
A bigger clearance would shorten the duration therefore build more compression and increase torque?
Leave the valve longer on the seat to cool off perhaps?
Cam should be here tomorrow.
I suppose it won`t hurt to try it both ways?
Cheers spanner.
Leave the valve longer on the seat to cool off perhaps?
Cam should be here tomorrow.
I suppose it won`t hurt to try it both ways?
Cheers spanner.
Joined Jun 2001
1K Posts | 0+
Pasadena Ca.
I ran a LRX1 cam in my 00 501 for a while.
Dale had me set the valve lash to 0.006" intake and 0.008" exhaust.
On suffering with intake reversion (sever rich bogging 50%-100% throttle below 4500rpm) Dale had me reset lash to 0.010" both valves, which helped.
Dale gave me new info on what to rejet the Dellorto which mostly solved the reversion problem.
Replaced the X1 with a X2.
So, to answer your question, on my 00 501, Dale recommended 0.006" intake and 0.008" exhaust but was willing to try 0.010" on both intake and exhaust to help evaluate a carburetor tuning problem
Hope this helps,
Joe
Dale had me set the valve lash to 0.006" intake and 0.008" exhaust.
On suffering with intake reversion (sever rich bogging 50%-100% throttle below 4500rpm) Dale had me reset lash to 0.010" both valves, which helped.
Dale gave me new info on what to rejet the Dellorto which mostly solved the reversion problem.
Replaced the X1 with a X2.
So, to answer your question, on my 00 501, Dale recommended 0.006" intake and 0.008" exhaust but was willing to try 0.010" on both intake and exhaust to help evaluate a carburetor tuning problem
Hope this helps,
Joe
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