This is going to sound dumb but i've heard differt things. Do spark plugs make any difference and if so, what? Aswell if they do, what would you recommend for a 05 wolverine?
thank ya..

 

most people with the yfm350 motor that i have talked to praise the splitfire plug, i personally run NGK R's and have no complaints, i want to try one of those splitfires just to see if it runs a little better since the spark has 2 choices to run, so it will pick the path of least resistance.

 

I would recommend against the Sh!tfire plugs, I have heard a lot of negatives on them used in small engines, I tried one once in a Yamaha Moto4 200 I had a while back, ran like k-rap, took it back for a refund. NGK is the way to go, if you feel like spending extra cash, get the iridium version of your plug (stock should be D8EA) that will fire with less voltage and run cleaner, and last a lot longer than stock.

 

95 wolv thanks for the info, i was gonna go buy one of those plug today, i had a guy at the local shop praising the splitfires.

 

Don't waste your $$ on Splitfires. I tried them in my Harleys too, waste of $$. No better gas mileage or anything. I use NGK in everything, or Champion if the parts store doesn't have the NGK in stock.
You can run a Champion RA6HC in your Wolverine if you'd like to try a different plug. I've had good luck with them too and they're usually under $1.50.

 

how often do you guys have to replace the plug, I have had my Grizz for almost two years and never had to replce it, is this normal?

 

I throw a new one in when i change my oil, i go through the routine, oil, filter, chain adjustment, etc. around every 20 hours or so.

 

I usually change them once a year in the bikes and quads. Cheap insurance...keep the old one as a spare in case you foul one out.

 

Spark plugs can last a long time, i still have the original spark plug in my 1971 honda 70.
If the electrode are still sharp looking ( not rounded), and arent fouled, or glazed..leave it in.
heres a good article on spark plugs.
http://www.strappe.com/plugs.html