OK guys, any help would be GREAT...(GLS, please read)....
One of my buddies has an F7 SP that is STOCK with about 1350 miles on it. It has had all the SBs done to it. At about 1000 miles it started to have an odd Spark Plug fouling problem. He runs BR9EYA, and he is defiantly a hard rider that knows how to keep the sled "burped".
Upon further investigation, we noticed that the plugs are FUEL fouled (not oil). Sometimes the sled would foul a plug during warm-up.
Also, it really started to foul plugs every 5-10 miles when it became night. The even colder temps added additional problems. He even tried steady-thumb riding out of desperation...no luck.
Now we figured it was obviously something EFI, sensor, or electronics related. We took the sled to the dealer, and he called Cat. Cat sent him two entirely new throttle bodies with sensors. (Cat said, that they didn't want the dealers working on tb sensors themsleves.) The dealer did test the sled after the work was done. They ran it for 15-20 minutes (sevral times) in a very large field behind their service dept., and didn't have any problems. Only thing was that it was during 20 to 30 degree days.
So, on the next trip...same problem. We even swapped sleds for awhile, no dice. Now the sled sits at the dealer. Neither the dealer nor Cat knows what to do. He would like Cat to replace the entire electrical system (ECU and all), but Cat isn't up for that. Another situation is that even if Cat suggests something else, my buddy will not know if the sled is correct until November....possibly on a trip.
My buddy loves his F7..his first Cat. He wants to keep it and is looking for help on this issue.
One of my buddies has an F7 SP that is STOCK with about 1350 miles on it. It has had all the SBs done to it. At about 1000 miles it started to have an odd Spark Plug fouling problem. He runs BR9EYA, and he is defiantly a hard rider that knows how to keep the sled "burped".
Upon further investigation, we noticed that the plugs are FUEL fouled (not oil). Sometimes the sled would foul a plug during warm-up.
Also, it really started to foul plugs every 5-10 miles when it became night. The even colder temps added additional problems. He even tried steady-thumb riding out of desperation...no luck.
Now we figured it was obviously something EFI, sensor, or electronics related. We took the sled to the dealer, and he called Cat. Cat sent him two entirely new throttle bodies with sensors. (Cat said, that they didn't want the dealers working on tb sensors themsleves.) The dealer did test the sled after the work was done. They ran it for 15-20 minutes (sevral times) in a very large field behind their service dept., and didn't have any problems. Only thing was that it was during 20 to 30 degree days.
So, on the next trip...same problem. We even swapped sleds for awhile, no dice. Now the sled sits at the dealer. Neither the dealer nor Cat knows what to do. He would like Cat to replace the entire electrical system (ECU and all), but Cat isn't up for that. Another situation is that even if Cat suggests something else, my buddy will not know if the sled is correct until November....possibly on a trip.
My buddy loves his F7..his first Cat. He wants to keep it and is looking for help on this issue.
