Fuel or air starvation ! free flow filter and a bigger bore fuel tap and pipe to feed faster will help ! open pipes done give any back pressure , you could use really short baffles in the pipes as i had this problem on a gs550 suzuki with 4 drag pipes on it !
SOURCE: stage 1 jets didnt work
pull the breather cover off and see how it does it sounds like you need more air going in when you go up on jet size it will change the air fuel ratio thus making it lack power or just run absolutely funny
SOURCE: honda xr600r cutting out at 3/4 & full throttle
when you put on a new air filter you have to rejet the carb in order for the air/fuel mixture to be correct,because with a aftermarket air filter it is allowing more air in than before and not enough fuel. as the piston speeds up upon exceleration the air is not getting burnt off into exhaust because you do not have enough fuel in the mix
SOURCE: 2005 suzuki bouevard s83 1400
try looking for the idle screw in the following place...
standing facing the side of the bike that has the clutch on it.
look in the area between the front cylinder and the rear cylinder, close to the tank.
the screw is black and can be difficult to see.
hope this helps.
SOURCE: 04 yz250f pipe at motor glowing red hot
Any reason you had to change the jetting??New pipe,Intakes.?But,even though you may have it a bit rich on idle the pipes WILL get very hot,very quickly without some sort of air flow over the front of the motor and radiator.At the very least,have a strong fan blowing directly on the front of the motor if you are going to let the bike run and you are not riding it.I have seen the white plastics in front of the radiator distort from the radiant heat.Don't idle them for in more then 20 seconds.It can do heaps of damage.Ride the bike and see if its running well.When you stop,turn it off.All the yz and wrf will get very hot at idle.Hope this helps
SOURCE: my 04' vt1100 is acting like the fuel filter is
you should be able to drain your carburettas without removing them. look for a drain screw on the bottom of the carby bowel. If it is fuel injected, then you may have to replace the injectors.
Testimonial: "I found the fuel filter and blew it out with an airhose woks like a charm now. Thanks for all the help. "
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