blue smoke @ 4000 rpm PLEASAE HELP !!!!!!!!!!!!!!!!

[windsormw]

thats right , just today i saw it out my side veiw window

I can see it very well , no so much on start up . But once the secondaries open up It smokes

please tell me its not the rings ...........valve stem seals is what i'm thinking ( hoping )

 

[DHMag]

check your intake for oil puddles. if that checks out, check for oil laying in the PCV system. if that checks out, run a compression test. if that checks out, its not rings. more than likely its valve stem seals though.

 

[windsormw]

PVC ? i'm a little unsure what or even where that is ( what does PVC do )

wouldn't i notice a dramatic change in HP

thanks man ...........

 

[jaded93atx]

Shos dont have a pcv valves.

 

[40BelowSummer]

SHOs do have a PCV system. Its what that line is for that goes from the front valve cover to the throttle body.

 

[DHMag]

i never said PCV valve, i said PCV system. all vehicles have some type of crankcase breather system.

 

[DHMag]

PVC ? i'm a little unsure what or even where that is ( what does PVC do )

wouldn't i notice a dramatic change in HP

thanks man ...........

not PVC..thats the plastic stuff they use in home plumbing. PCV, Positive Crankcase Ventilation. since the volume of air in the crankcase changes with every rotation of the crankshaft, the crankcase must be vented to prevent building a vacuum. a PCV valve is simply a one-way check valve. but the Yamaha built motor does not have a PCV valve, it has a PCV system. this system consists of a hose going from the front valve cover to the throttle body.

 

[windsormw]

that was the awnser i was lookin for ..........thank u for that discription

Is there maybe a sensor @ the end that hose in the throtle body ? Just wondering

 

[DHMag]

that was the awnser i was lookin for ..........thank u for that discription

Is there maybe a sensor @ the end that hose in the throtle body ? Just wondering

No, just a hose, 2 clamps, and 2 *******.