I think its time to change the Spark plugs

[Thunderkat13]

Ok, so Ive been using the boat a lot this season and today while pulling a boarder, I heard a few misses on take off (a little stuttering) then back to flawless.... Only did this a few times, but it just started...
I think I am going to do a basic tune up, new filters and check everything over, my only question is why the missing under load of a boarder sometimes..

Also What spark plugs should I buy to replace the old ones...and what is the gap

Im reading the manual just know some of you guru's have it memorized

Im in heaven with this speedster, night and day different then the sportster i had before!!
:hurray:

(secretly shopping for a challenger 180 for next year)

 

[ski33]

think they are: br8es 0.27 but buy iridium plugs more $$$ but will outlast normal buy x10 and give a very small perfomance gain

 

[vielster]

http://www.parkeryamaha.com/bombardier.aspx

Checkout the last item...it's a "tune-up" kit for the 4-tec engine in our boats. I take it you have a speedster, so you'll need two of these Comes with Bobardier Oil, Filter, O'rings, and spark plugs. At this price, I'll probably just get one of these every year.

 

[Thunderkat13]

Nice kit and all but not for my boat....
I have a 2000 Speedster with the Merc engine..