Bike won't rev past 6000 rpms.

[Bssoap74]

My bike will not rev past 6000k rpms. It almost seems as though there is a rev limiter on it. It happens in gear and in neutral. Any Idea's?

 

[OnePhate]

Clean your carbs, the lazy way would be to run seafoam through the gas, its a great product. When I got my bike, it only ran with the choke on, and was hard to start, one tank of seafoam later and she ran like new.

 

[OnePhate]

Also, new sparks plugs would be beneficial, I also run premium gas.

 

[drewpy]

give it a thorough service and tune up!

 

[Bssoap74]

Plugs are new. Carbs are very clean and in sync. Any other Idea's?

 

[HoughMade]

Set the timing.

 

[akronevan2]

Onephate, did you run ONLY Seafoam through it?

 

[OnePhate]

Onephate, did you run ONLY Seafoam through it?

No, I believe the ratio is one ounce per gallon of fuel. you can however pour it straight into the carbs while running. I'm not sure it would start on only seafoam.

 

[HoughMade]

I'm a Seafoam believer, but I use it to help KEEP a fuel system clean. I don't think it will open up a gunked up BS34. There's no substitute for tearing them down and cleaning them well.

 

[niko]

hello, i 've the same problem! have you resolved this? any idea?

 

[jmd_forest]

As HoughMade mentioned, check the timing and set it to specs if necessary.

 

[niko]

i'm french, what's timing? ignition?

 

[jmd_forest]

Yes, "timing" is the ignition timing.

 

[ThePsuedoMonkey]

i'm french, what's timing? ignition?

"Timing" refers to when the cylinders fire, relative to the position of the camshaft. Timing is adjusted by the either the pickup coil or the points assembly (depending on the model) at the end of the camshaft.

 

[OleDoc]

No, I believe the ratio is one ounce per gallon of fuel. you can however pour it straight into the carbs while running. I'm not sure it would start on only seafoam.

no it won't run on seafoam only