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Install the new or cleaned spark plug with
0.5~0.7mm electrode gap and reassemble
completely before use.
This engine uses a L6RTC with 0.5-0.7 mm
electrode gaps (Or Champion: RCJ6Y,CJ7Y,
RCJ7Y, RCJ8, RCJ8Y or NGK: BM6A, BMR6A,
BPMR6A).
Use a suitable replacement and replace once
a year.
I've never heard of the saw but it is probably a McCullock derivative. Try either 0.5mm or 30 thou (of an inch). It won't be far out and should get you out of trouble.
The RCJ7Y is a resistor plug and CJ7Y is a non resistor plug. Other makes of the same plug are.
Bosch = WSR5F
Autolite = 2974
NGK = BPMR7A or BPMR7Y and 4626
You could use the CJ7Y but really need to fit a resistor type spark plug cap to the ignition lead.
Hi there, No problem. Recommended fuel mix ration if using Husqvarna brand premium Two-Stroke Oil is 50:1. If using another two-stroke air cooled engine oil, you should use 25:1 fuel:oil ratio.
Regading the spark plug, the recommended plug is a Champion RCJ7Y with a plug gap of 0.5mm (or 0.020 inches).
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