What's best plugs for Jonson V6, 1986

hfilty

Cadet
Joined
Jan 13, 2008
Messages
22
Put new plugs in Jonson 86 150 HP V6. Champion QL77JC4, But I'm having a problem at start up, after a few time tried it started ok and it drove fine, if I stopped for while and tried to start it again, something, after a few tried it start with the smoke, lot of gas, flooded plugs.
I adjust the plugs @ 0.030 (from the plugs table, but the year of my engine was not populated). I used to have the plugs @ 0.038. What the best plugs for this engine and what is the adjustment?

Thank you for you help in advance.


86 Jonson 150HP V6 VRO
 

petryshyn

Commander
Joined
Oct 3, 2001
Messages
2,851
Re: What's best plugs for Jonson V6, 1986

Could be leaking needle and seat, leaking fuel pump diaphram.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: What's best plugs for Jonson V6, 1986

your plugs are correct and .030 is correct, agree with above.
 

hfilty

Cadet
Joined
Jan 13, 2008
Messages
22
Re: What's best plugs for Jonson V6, 1986

Thank you for your advice. I will take the carb a part this weekend
 
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