what spark plug do i need for a 3.75
need the engine model, type and code
The spark plug gap for a Murray 12 hp riding lawn mower should be set at .020 inches. This is equal to .5 mm.
.20
0.030-0.035
0.028-0.030"
The spark plug gap for a Murray 3.5 horsepower lawn mower should be set at .030 inches. A new spark plug will come with the gap preset and should need no further adjusting.
what is the spark plug setting for 7hp self prepelled troy bilt mower
What is the gap on the spark plug on a Brigg's stratton lawn mower Model#31P777 Type 0348E1?
.030
According to Craftsman owner manual for 4.75 horsepower mower model 917.388920 spark plug RJ19LM the gap is .030. Also: Oil type (API SG-SL) SAE 30 (above 32 F) and SAE SW-30 (below) 32 deq. F Blade bolt torque 35-40 lbs.
Spray some ether in the carb. If it fires, it has spark, but not getting fuel. start there.
RC12YC Champion