Spark Plugs

[MBJJ2369]

Looking for some recommendations for spark plugs. I have a 1988 Force 50, 507Y8C.

Thanks

 

[pnwboat]

Either Champions UL18V or NGK BUHX. Kind of personal preference as to which brand.

 

[MBJJ2369]

Thanks

 

[jerryjerry05]

L-82 C is what the factory calls for
Or B7HS10 NGK

​The UL-18V is for the 3/4cyl. motors.
​They are a gapless style.
​This motor calls for regular style plugs

 

[MBJJ2369]

I looked in the SELOC manual, they call for NGK BUHX, exploded diagrams reference L82C plugs. Will using the gapless plugs cause problems? I am thinking of trying both just to see but don't want to take a chance on causing any damage.

 

[Jiggz]

My manual says the same, UL18V or BUHX for 84-89 50HP Force

 

[jerryjerry05]

Seloc has been known to be wrong before.
​Seloc is a "general" repair manual.
They cover a lot of different motors and the specifics are lacking.
Look up the parts diagrams for your motor.L82-C

 

[MBJJ2369]

I went with the L82C plugs.