as far as i know there is no difference in the motor part for this
mopeds, both 5 gear standard tomos motor. if there is a difference it
must be in the porting or used cylinder/piston. so if you are thinking
about changing parts, change piston and cylinder together, nu brake in
period required too:).
if you want some performance, put on a 17mm carb, big ports, and clean
exhaust and they spin about 100km /h .
> > What is the physical diference between ATX and BT50 engines?
> Bore / stroke ratio is the same, so is it possible (as I heard
> to just install BT50's piston in ATX and get ATX with BT performance?
> (max speed 80 km/h, 4 kW at 8500 rpm and torque of 5 Nm at 7500 rpm)
> Or do I still need to install complete new engine. What about the fuel
> flow and exhaust?
> > I know it is easier to get BT instead, but ATX is the most beautiful
> little bike I ever saw, I feel more comfortable with its suspension
> with BT's and I like its off-road capabilities (no matter how
> Pitty ATX have so wussy engine.
> > And I know that high rpm-engines are not suitable for off-road riding,
> but if I wanted to climb stairs with my bike, I would go after 750cc
> enduro :)
> > Please help if you can, I am already offered a beautiful MZ ETZ 251
> oil pump and disc brakes, so temptation is heavy. :)
> > --
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