what plug ?

[plugger]

hours vs plug life is there a rule of thumb ?<br />130 hour over 3 seasons ran tip top<br /> but i did note some rust on one of the plugs (nut),do i pull em and just clean um up or go for new ....what is the proper part # and if i go new <br />are they pre gaped ? <br />i ever even heard that until reading there was such a thing<br />99 jhonson 115 jpl carb<br />This will be my first go round UNDER THE HOOD <br />any and all replys welcome<br />walk me through the procedure

 

[cpasseno03]

Re: what plug ?

If the engine is running good the plug will be brown and crispy, almost the same as baking bread. Plugs are usually cheap and worthwhile on such engines as the average 2 stroke outboard. Use a touch of anti seize on the threads. The correct plug should be in your manuel, most likely the same that are in it now. <br />Craig

 

[ob]

Re: what plug ?

plugger, Craig offers sound advice.If you have been running tip top and trouble free for three seasons on the type plugs you currently use then I would replace with the same.Most likely Champion as that is what Johnson motors are factoried with.Probably QL78YC or L77JC4

 

[Beaux]

Re: what plug ?

they are not pregapped.... you need to check and regap them to specs. Gap gauge only costs $3.00 at auto parts store. Remember to tighten to torque spec in manual or do as a lot of guys do and thread initially into block by hand to prevent crossthreading and then use socket until it firms up tight. Then 1/4 turn more and thats all. good luck

 

[plugger]

Re: what plug ?

thank you all <br />and merry xmas

 

[fishinhole]

Re: what plug ?

plugger if you have manual check in it first for which plug. you should use Q or resistor plugs in evinrude or johnson outboards. reg. plugs will work, but the motors were designed for the Q. again check manual because some came with QL82YC the Q plugs will also stop electric suppression noise in radios and fish finders. {have friend who is engine tech at omc, bombardier}