I have a ns90a its got spark, gas and compression but #1 (top cylinder ) cylinder is dead.
compression #1 135 psi, #2 133 psi , #3 134 psi
When I pull plug wires on #2 and #3 rpms drop considerably and and when I pull #1 it seems to make rpms speed up a little.
Ive changed plugs and cleaned carbs twice.
compression #1 135 psi, #2 133 psi , #3 134 psi
When I pull plug wires on #2 and #3 rpms drop considerably and and when I pull #1 it seems to make rpms speed up a little.
Ive changed plugs and cleaned carbs twice.