Feedback Score: 0 reviews
Join Date: Feb 2006
Location: Orrville OH
Anyone actually stick a gauge on their V to see what the pump puts out? I have been having some top end issues that seem as if the bike is starving for fuel. I have went up one size on the pilots, and I am at 198/200 on the mains. All I have is a Muzzy, and the 36's. With my old bike (same engine) and my prototype intake, I was getting around 8400 RPM's through a modded slip on. Now, I am playing hell to get it to 8K, without the intake, and a better (assumed) exhaust. It revs to around 7000-7100 and upshifts at that RPM, upon shift out, it hits about 7500, and starts to break up. I have a constant 2.5 PSI of fuel pressure from idle to shift out. It's kinda hard to see exactly due to vibration, but it is over 2PSI under WOT. Now, somewhere near when it shifts out, and it overrevs, it begins to drop. I am guessing it is only seeing 1.25- 1.5PSI of pressure. Just curious if this is normal with the engine RPM increasing, or not.
I know I free revved the engine in the garage, and held it to 8K for awhile to see if it would drop the fuel pressure, and it didn't. No breaking up, nothing. I changed the battery, plugs twice, CDI, double checked the intake boots, and there is nothing there. Only thing I can think of at this point is either the fuel pump, or coil packs.
I just bought a FAST dual Wideband, and it will be here next week, but I was gonna hit the dragstrip this weekend, and don't feel like wasting my time with it running the way it is.