The Homelite Mighty Lite typically uses a spark plug type known as the NGK BPMR7A. It's important to check the specific model and year of your Mighty Lite, as some variations may require different spark plugs. Always refer to the owner's manual for the most accurate information regarding replacement parts.
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Below the spark plug
The birth date of spark plug inventor Edmond Berger is not known. Edmond Berger invented the spark plug in 1839.
Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.
on drivers side under the dash behind fuse block
.025" spark plug gap http://store.chainsawr.com/
0.65mm
.025
I think it is 0.030".
Champion DJ7Y (gap of 0.025")
Champion DJ7Y. Not sure of the plug gap though.
Plug gap should be .025" http://store.chainsawr.com/
The correct spark plug gap for a Jacobsen Homelite 420 snowblower is typically around 0.030 inches (0.76 mm). However, it's always best to consult the owner's manual or check the specifications on the spark plug itself for the most accurate information. Ensuring the correct gap is crucial for optimal engine performance and efficiency.
As used in homelite string trimmers is calls for .025. Other units may be different.
0.025 in gap (0.63mm)
set it at .020 and you will be fine
First of all, it the plug gap is too large the cyl. will not fire, or fire poorly. and, if there is no spark due to that, then the timing lite will not read anything.