evinrude yachtwin 4 HP Plugs!!

[1stmatevista]

Hi, I wondered if one of you knowledgeable gentlemen could clarify this enquiry for me!!
I have a evinrude yachtwin 4 HP which is a 1989 if my reading the motor code right (BE4RLCEC). the plugs that are in at the moment are NGK B9HS, are these right because im sure i remember reading a thread that said these should have champion plugs, am i panicking ??? if this is the case wot plugs do i need... thanx

 

[steelespike]

Re: evinrude yachtwin 4 HP Plugs!!

My after market manual indicates:: breaker point ignition RL82C
CD ignitiopn GL77JC4. I believe Champion is indicated.To me the main reason to stick with Champion is to avoid errors crossing the numbers.

 

[Vic.S]

Re: evinrude yachtwin 4 HP Plugs!!

From different sources i am finding QL86C and QL77JC4 (both Champion)

Champions are recommended but I find the "equivalent" NGK pugs are

BZ7HS 10 for the QL77JC4 (The Z and the Q denote an inductive resistor plug.)

i cannot find an equivalent for the QL86C but for its unsuppressed brother it would be B6HS

Don't panic but the B9HS plugs are a little cooler than those above. You might suffer from fouling as a result.

According to the BRP parts lists this engine has an electronic (CD)system.

Should add plug gap 0.030"

 

[1stmatevista]

Re: evinrude yachtwin 4 HP Plugs!!

Thats a fair comment, she runs good, thanx for the help..

 

[1stmatevista]

Re: evinrude yachtwin 4 HP Plugs!!

WOW!! thanx for the info,this is my first post and your answer has given me insight to wots goin on?? great thanx again