Something I noticed when I ported my 04 is the rubber flange connecting the carb to the manifold. Inside is a internal flange that protrudes into the air flow (its there for the carb and manifold to mate up to).. I used my 60 grit "flapper" wheel to turn it down to match the complete intake diameter. Seems a shame to match all ports and leave this sticking out into the intake trac. Just my two cents.
Ace,i've noticed where the bowl meets the seat it is under cut slightly,any blending would need to be made on the sea itself,however that would turn the flow back slightly.Can epoxy steel be safely used on the Alloy to build it up so it blends in a nice straight line with the seat?the coinz.
add a modest intake extension between carb and head. Longer runners improve low speed torque and our machines engine fits the bill. These are available from at least one supplier of flatsides whose name escapes me right now.
Quote from: jonapplegate on January 01, 2009, 10:23:18 pmadd a modest intake extension between carb and head. Longer runners improve low speed torque and our machines engine fits the bill. These are available from at least one supplier of flatsides whose name escapes me right now.About how long would you suggest? I am going to put a 32mm flatside carb on and all I can find so far is a short rubber mikuni manifold. Everything I find seems to be 2" center-to-center and the bullet seems to be 60mm center-to-center. For me, I have decided not to port it or do the valve job yet, I want a reason to take the head off. Like maybe to celebrate 3,000 miles.Thanks,-Rick
doesn't putting a rubber hose between the manifold and carb cause two relatively large steps that would mess it up? Is it insignificant? I am thinking about filling in the gap with high temp silicon.-Rick
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