My inlet manifolds on the 250 are buggered and getting parts for it here in Aus is useless, I dont want to wait any longer for parts from overseas so thought i would have a go at making my own inlet manifolds for the bike.
Cutting a flat piece of steel bar to the correct shape with the 2 small bolt holes and the large inlet hole, cutting a flat piece of rubber to the correct shape to seal them against the engine.
Getting a piece of round pipe cut down to about 2cm wide which will be welded to the flat bar and then a rubber hose slipped onto the round pipe with a hose clamp, and then the carby slipped into the other end, keeping it all within the same measurements of the factory rubber inlet manifolds.
The only problem i see is that the metal pipe itself will make the inlet passage smaller which could effect the way the bike runs as the intake area is restricted. Unless i make the inside diametre of the pipe the same size as the original rubber one and get a stepped down rubber / silicoln hose instead.
What do you think?...
Cutting a flat piece of steel bar to the correct shape with the 2 small bolt holes and the large inlet hole, cutting a flat piece of rubber to the correct shape to seal them against the engine.
Getting a piece of round pipe cut down to about 2cm wide which will be welded to the flat bar and then a rubber hose slipped onto the round pipe with a hose clamp, and then the carby slipped into the other end, keeping it all within the same measurements of the factory rubber inlet manifolds.
The only problem i see is that the metal pipe itself will make the inlet passage smaller which could effect the way the bike runs as the intake area is restricted. Unless i make the inside diametre of the pipe the same size as the original rubber one and get a stepped down rubber / silicoln hose instead.
What do you think?...
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