1999 gtx rfi fouling plugs

[michael fontaine]

I have a 1999 gtx fuel injected, with new plugs it starts and runs for a short time (20 minutes) then starts running badly. When I take out the plugs their black and wet. If I put in new plugs its fine again for a short time then repeats problem, please help.

 

[Bills86e]

The pintol shafts on the injectors may have gone south. I would inspect the fuel filter, and any signs of water there means water in tank problem. Rust, oxidation over the last 11 years can take the toll if it gets fed moisture. I suggest a fuel delivery system clean out. Bills86e

 

[voodoo]

I notice the name, fontaine - the founder of the jet concept on the west coast many years ago, what a coincidence.

 

[michael fontaine]

Thank You Bill86e for your input

thanks bill86e

 

[ted-hurst]

Michael,
Did you ever find out what was causing your GTX RFI to foul the plugs? I also have a 1999 GTX RFI that after riding 20-30 minutes it starts to run rougher and the plugs are fouled. Compression is 140 on each cylinder and coil is fine, I was thinking either the tank filter or injectors myself.

Thanks
Ted

 

[seadooya]

you both have symptoms of sticking rave valves. Remove/clean them ,and think your problem will discipate.