1972 Merc 20hp 200

O

OPTX

Recruit
Joined
Apr 26, 2007
Messages
2
Nice forum

Well I have a 1972 Mercury 20HP 2 stroke engine.It was purchased from a friend and had not been serviced in a while. I changed the gear oil using quicksilver and the spark plugs. I also added a small fuel filter and cleaned the engine. Here is the question.I wanted champion J4C spark plugs but had to settle for AC Delco R45's...will that affect my eninges performance?

What else can I do to optimize my engines performance?

Thanks!
 
achris

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: 1972 Merc 20hp 200

Hi there,

The AC R45 plugs are the J4C equivalent, so no problems there. The easiest way to optimize the performance of your engine is to have it serviced annually, give it clean fresh fuel and good quality oil (I've found the Quicksilver TCWIII to be good). Give it a good flush at the end of the day and keep it stored in the upright position.

Have fun....
Chris.........
 
O

OPTX

Recruit
Joined
Apr 26, 2007
Messages
2
Re: 1972 Merc 20hp 200

Thats good to hear...the engines run fine since the new plugs and I have been using only quicksilver oil as well for the engine. Thanks for the advice!
 
J

james33

Seaman Apprentice
Joined
Jun 26, 2007
Messages
35
Re: 1972 Merc 20hp 200

I use Champion L78-V plugs for my motors...
 
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