I'm hoping you guys can help me with this problem we've been having.
I have an '08 KFX at a local engine builder. Out of fairness to him, I won't mention his name. He is my friend and a good, reputable builder who builds pro and pro am motors for national level bikes. I took my bike to him, and we had plans to build a healthy stock bore motor to run the TT nationals with. Well, the bike is done, but has "issues", and the engine builder is just frustrated as hell with it, and I'm frustrated because we can't use the bike.
Here's the mods I know of:
*high compression piston
*intake and exhaust cams
*ported head
*power commander
*HMF full exhaust
*Fuel ATV intake w/ K&N filter
I don't know the specs of the piston or the cams
The bike will run and run GREAT. It makes awesome horsepower and torque #'s, and has a very nice and linear power curve. The problem is that it will just all of a sudden lean itself out. Not just a little either, I'm talking full on with the glowing pipe, POP POP POP, etc. It's not a power commander issue because we've replaced it 3 times. We've replaced the fuel pump as well when we replaced the fuel tank for the factory recall. We have the computer at a company that builds diesel truck programmers (superchips) to see if the issue is in there. Have any of you experienced anything like this? Any thoughts?
Also, I've watched Creamer blow a crank, and heard he blew another one within the same month. I've also been told that Frank Batista has blown up several as well? I've been hearing the stock bottom end can not handle high compression,. I guess if we ever get this thing running right, and like it, we'll tear it down and put a Falicon crank, rod, etc in. Anyone else heard this or have any thoughts on this as well?
Thanks for any help you guys can provide.
I have an '08 KFX at a local engine builder. Out of fairness to him, I won't mention his name. He is my friend and a good, reputable builder who builds pro and pro am motors for national level bikes. I took my bike to him, and we had plans to build a healthy stock bore motor to run the TT nationals with. Well, the bike is done, but has "issues", and the engine builder is just frustrated as hell with it, and I'm frustrated because we can't use the bike.
Here's the mods I know of:
*high compression piston
*intake and exhaust cams
*ported head
*power commander
*HMF full exhaust
*Fuel ATV intake w/ K&N filter
I don't know the specs of the piston or the cams
The bike will run and run GREAT. It makes awesome horsepower and torque #'s, and has a very nice and linear power curve. The problem is that it will just all of a sudden lean itself out. Not just a little either, I'm talking full on with the glowing pipe, POP POP POP, etc. It's not a power commander issue because we've replaced it 3 times. We've replaced the fuel pump as well when we replaced the fuel tank for the factory recall. We have the computer at a company that builds diesel truck programmers (superchips) to see if the issue is in there. Have any of you experienced anything like this? Any thoughts?
Also, I've watched Creamer blow a crank, and heard he blew another one within the same month. I've also been told that Frank Batista has blown up several as well? I've been hearing the stock bottom end can not handle high compression,. I guess if we ever get this thing running right, and like it, we'll tear it down and put a Falicon crank, rod, etc in. Anyone else heard this or have any thoughts on this as well?
Thanks for any help you guys can provide.