Have problems with my SLK32 when i put Kleemann-pulley (178)l, sometimes i only have 0,9 bar (should be 1,28).

Yesterday i intall Let-wheel 185 and get same problem, its load only 1,33 (should be 1,55)

I change my sparkpluggs and my problems are gone.

now its load 1,55 bar (22,5 psi) all time!

Sorry my bad lang....Swedish....