06-08-2009, 03:50 PM
I am about to sell this damn thing if I can't get it figured out. 
I just completely rebuilt an F4i and I can't figure out what's wrong with it. The bike runs great, I can ride down the street with quick throttle response and without hesitation. However, when I go to clutch it up from a dead stop...when I go to get back into the throttle, the bike boggs out and falls on its face. I have tried almost everything that I can think of. Anyone ever had this?
Here is what I have checked:
-ohmed the injectors
-new plugs
-thought it might be a gas cap issue because I have a vortex, so I tried a stock cap
-full of gas, half full of gas .... doesn't matter, same outcome
-checked all vacuum lines and routing
-I did the idle screw mod at first, figured that was what caused it so I put it back to stock
-tip over sensor has been removed and bypassed
-airbox has been modded to remove the PAIR valve
-I am going to try synching the TB's tonight and see what that does
I just completely rebuilt an F4i and I can't figure out what's wrong with it. The bike runs great, I can ride down the street with quick throttle response and without hesitation. However, when I go to clutch it up from a dead stop...when I go to get back into the throttle, the bike boggs out and falls on its face. I have tried almost everything that I can think of. Anyone ever had this?
Here is what I have checked:
-ohmed the injectors
-new plugs
-thought it might be a gas cap issue because I have a vortex, so I tried a stock cap
-full of gas, half full of gas .... doesn't matter, same outcome
-checked all vacuum lines and routing
-I did the idle screw mod at first, figured that was what caused it so I put it back to stock
-tip over sensor has been removed and bypassed
-airbox has been modded to remove the PAIR valve
-I am going to try synching the TB's tonight and see what that does