Spark Plug Gap

P

pscrabber59

Petty Officer 1st Class
Joined
Apr 12, 2010
Messages
246
Can anyone tell me what is the proper gap-setting for a 1993 Mercury 3.3hp 2-stroke made in Japan.
Motor did not come with a owners manual and a Seloc service manual i borrowed from the library makes no mention of it.
Thanks for any replies.
 
Fun Times

Fun Times

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Staff member
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May 16, 2009
Messages
8,808
Re: Spark Plug Gap

Ignition Type [1993 Models (2.5/3.3)] . . . . . . . Capacitor, Discharge
Spark Plug (All Models) . . . . . . . . . . . NGK BPR6HS-10
or Champion RL87YC
Spark Plug Gap . . . . . . . . . . . . . . . . . . 0.040 in. (1.0mm)
Breaker Point Gap . . . . . . . . . . . . . . . . . . . 0.012 - 0.016 in.
(0.3mm - 0.4mm)

Merc S-M part #90-444771
 
P

pscrabber59

Petty Officer 1st Class
Joined
Apr 12, 2010
Messages
246
Re: Spark Plug Gap

Thank you very much. Will install new plug and change out gear oil this weekend
Fun Times said:
Ignition Type [1993 Models (2.5/3.3)] . . . . . . . Capacitor, Discharge
Spark Plug (All Models) . . . . . . . . . . . NGK BPR6HS-10
or Champion RL87YC
Spark Plug Gap . . . . . . . . . . . . . . . . . . 0.040 in. (1.0mm)
Breaker Point Gap . . . . . . . . . . . . . . . . . . . 0.012 - 0.016 in.
(0.3mm - 0.4mm)

Merc S-M part #90-444771
Click to expand...
 
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