Some of you will know i been chasing my tail in circles trying to work out why my bike on occasion runs like sheeit and has been getting worse. Took tank off today to change out the fuel filter, holy crap i was amazed by how much sludgy goo was settled in the bottom of the tank.......
Anyway started following all vacum lines looking for splits etc: that could be source of running issues , no luck so then i got a torch and had a good look at the rubber boots from head that connect to the throttle bodies and FKN BINGO , front clamp was slipped off and rubber split . Funny thing is this bike has had intermittent backfire through the OEM air box , ram air filter and current 3 x filter setup , has gotten worse over time , seems to me the throttle body was never fitted correctly to the rubber from factory and has cause the rubber to split and crack over time , other two boots are in perfect condition.
Following are pics taken as i assessed the issue and removed the throttle bodies , also pics down each inlet port showing the tops of the valves , interesting thing here is the front valves ( the intake with the rooted boot ) are relatively clean and free of built up gunk , the rear two intake valves are really gunkked up bad , what causes this and can i use an additive in fuel to help it clean itself ?
Oh yeah also in dire need of the front head to throttle body boot if anyone from Bris to Gold Coast have spare they'd like to sell, would be a life saver.
Anyway started following all vacum lines looking for splits etc: that could be source of running issues , no luck so then i got a torch and had a good look at the rubber boots from head that connect to the throttle bodies and FKN BINGO , front clamp was slipped off and rubber split . Funny thing is this bike has had intermittent backfire through the OEM air box , ram air filter and current 3 x filter setup , has gotten worse over time , seems to me the throttle body was never fitted correctly to the rubber from factory and has cause the rubber to split and crack over time , other two boots are in perfect condition.
Following are pics taken as i assessed the issue and removed the throttle bodies , also pics down each inlet port showing the tops of the valves , interesting thing here is the front valves ( the intake with the rooted boot ) are relatively clean and free of built up gunk , the rear two intake valves are really gunkked up bad , what causes this and can i use an additive in fuel to help it clean itself ?
Oh yeah also in dire need of the front head to throttle body boot if anyone from Bris to Gold Coast have spare they'd like to sell, would be a life saver.