Hello
I was wondering how much worn reeds will effect the jetting on a fairly low performance two stroke? I have a 200cc y2k Beta Rev3 trials bike which I'm having some problems jetting correctly, but the reeds don't look worn or damaged to the naked eye. They have not ever been replaced on the bike and I think maybe I should replace them anyway. I can't see any gaps when looking through the reed cage, and there are no chipped edges or fraying, and I can't see any cracks in them either. They are carbon fibre as standard, and I'm wondering how long these reeds should generally last? Anyone got any 'rules of thumb' on how often reeds should be replaced even if they're not visably damaged?
The bike is running too lean at the bottom end (new larger pilot jet on the way!), and then seems to run too rich after about 1/4 throttle. I had some problems with water getting into the carb several months ago, which has been fixed by blowing the carb and jets out with compressed air. I have also repacked the muffler, completely drained the fuel tank, and cleaned out the in-line fuel filter. All electrical fittings and connectors seem to be fine. I guess I'm still trying to understand what has changed with the bike to cause it to run badly. These bikes are very understressed and low performance compared to a motocross or enduro bike, and don't generally seem to wear motor parts out very quickly.
I was wondering how much worn reeds will effect the jetting on a fairly low performance two stroke? I have a 200cc y2k Beta Rev3 trials bike which I'm having some problems jetting correctly, but the reeds don't look worn or damaged to the naked eye. They have not ever been replaced on the bike and I think maybe I should replace them anyway. I can't see any gaps when looking through the reed cage, and there are no chipped edges or fraying, and I can't see any cracks in them either. They are carbon fibre as standard, and I'm wondering how long these reeds should generally last? Anyone got any 'rules of thumb' on how often reeds should be replaced even if they're not visably damaged?
The bike is running too lean at the bottom end (new larger pilot jet on the way!), and then seems to run too rich after about 1/4 throttle. I had some problems with water getting into the carb several months ago, which has been fixed by blowing the carb and jets out with compressed air. I have also repacked the muffler, completely drained the fuel tank, and cleaned out the in-line fuel filter. All electrical fittings and connectors seem to be fine. I guess I'm still trying to understand what has changed with the bike to cause it to run badly. These bikes are very understressed and low performance compared to a motocross or enduro bike, and don't generally seem to wear motor parts out very quickly.
