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Jetting for 04,Gas Pro 250

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Does anyone know the jetting that will cure the pinging of my engine, I have a Clack in the engine when blipping the engine from idle to 3/4 throttle

sea level sunny south coast of England

Many thanks

Calvin

Does anyone know the jetting that will cure the pinging of my engine, I have a Clack in the engine when blipping the engine from idle to 3/4 throttle

sea level sunny south coast of England

Many thanks

Calvin

Try checking first if you have any splits in the inlet manifold rubber or if its loose even - as if you have an issue here then the high rpm will suck in air and weak off the mixture. Fix problem rapido if found as I had this occur on a bike of mine and it nipped up =

  • Author

Mr Do

I owe you one,

Checked the area around the Carb with GT85 through a straw, when I sprayed on the topside of the carb engine smoothed out, took top of carb and put a light smear of grease round the rubber gasket round there greased all the other joint in the air in take, and popped it all back together, shes as smooth as a smooth thing now, quick fix, many thanks.

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