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695 Posts
I have a 1997 SLR650 and a 2000 FX650 "Vigor".
On the FX I removed the final baffle from the standard cans and increased the main jet to 175 (was 168 ), the difference was astounding.
I've just done the same to the SLR and the result is the same, the engine is more tractable, develops more torque (it'll pull from under 3000 RPM in top) and sounds fantastic.
I removed the baffles by drilling a series of holes around the little exit pipe, then used a cold chisel to join them up, then shoved a bar up the pipe and waggled it around for 5 minutes or so until the welds on the internal baffle broke and I was able to pull the exit pipe. Finally I cleaned up the hole with a small grinding stone.
I cannot emphasize enough what a transformation this has wrought, the standard bike just seems like a castrated sad thing in comparison....
The £1.75 is for the main jet BTW
On the FX I removed the final baffle from the standard cans and increased the main jet to 175 (was 168 ), the difference was astounding.
I've just done the same to the SLR and the result is the same, the engine is more tractable, develops more torque (it'll pull from under 3000 RPM in top) and sounds fantastic.
I removed the baffles by drilling a series of holes around the little exit pipe, then used a cold chisel to join them up, then shoved a bar up the pipe and waggled it around for 5 minutes or so until the welds on the internal baffle broke and I was able to pull the exit pipe. Finally I cleaned up the hole with a small grinding stone.
I cannot emphasize enough what a transformation this has wrought, the standard bike just seems like a castrated sad thing in comparison....
The £1.75 is for the main jet BTW