right cylinder misfire

[fink88]

my right cylinder is misfiring when throttle is increased changed plugs,coil,wires and boots no change any ideas

 

[5twins]

What year bike and carbs? That info is needed to give a proper answer.

 

[fink88]

its an 83 special with mikuni bs34 carbs

 

[xstwin]

Stock ignition??

 

[fink88]

yes stock ignition

 

[retiredgentleman]

What is the condition of your carbs? If the right carb has blockage in the pilot circuit, then that side will not run right, as the throttle is increased.

 

[jigm400]

you might have an air leak. if you are fouling out you right spark plug or feel it holding a high idle after the motor gets hot. it could be an air leak in the carb boot it is comon with the current after market parts that they do not "seat" correctly

 

[fink88]

i cleaned the carbs last night slapped it all back together still no change

 

[jigm400]

yes, but did you remove the intake manifold to cylinder boots and make sure they are in good shape.

 

[fink88]

yes they looked good no cracks etc..

 

[XSLeo]

When you cleaned the carbs did you pull the jets and make sure that you can see light through them?
Also When you spray cleaner in the mix screw hole does it come out all the tiny holes above the throttle plates? Depending on the carbs two to four holes.

 

[fink88]

yes jets were clean looked brand new i dipped the carb then use the air compressor to get all of the residue out perfectly clean

 

[gggGary]

Have you replaced the float valve O-rings? Checked the float bowl fuel height with clear tubing? Compression test? Cam chain and valves set?