Motorcycle Repair/xj 600


hi I have a xj600 Yamaha I was riding down the motorway I would lose power then it would come back and it kept doing this I felt like a kangerroo any ideas please

Tony, this could be a simple problem just try to narrow it dow. It sounds like a fuel problem. Its possible the carbs are starving for fuel. A fuel filter could be plugging up or the fuel valve on the bottom of the tank is restricted. Or you may even have a vapor lock situation where the tank vent is plugged up. The engine runs out of fuel and loses power then surges when the fuel catches up.

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Gary Blake


I have built from ground up race winning motocross bikes and atvs as well as atv,s for flat track and TT racing. I am starting to take on the utv challenges now for racing. This is a new area for me so Im in a learning curve.


I have extensive experience in off road motorcycles and atv,s.I also work on street bikes and personal watercraft, Some experience was self taught and some was factory trained. I have been working in the powersports industry since the mid 70,s I hope I can help. Thanks Gary

Was a sponsor for K.O.R.R.(kansas off road riders) and now I am working with ROMEO,s (retired old motorcyclists eating out)and was in charge of the Quad Wars for the monster truck series in Central Kansas

Factory trained Kawasaki Heavy Industries. Factory trained GasGas motorcycles and atvs worked as a technician and was as a dealership owner.Kaw.Suz,Honda,Aprilia,Arctic cat,See Doo,Can Am, Bombardier,Yamaha,GasGas,Qingi,TM,Moto Guzzi,Harley,s

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