08 YZ 250 Fouling Plugs

by C.J
(California, USA)

I own a 2008 Yammy 250 two stroke which is a weapon and a bag of fun to ride. I've always ridden Yamaha's as they're known to be a quality bike and I've never really had any problems with them apart from the usual wear and tear.


However, for a while back I kept chewing through the spark plugs and fouling them. After changing a couple of them over to new ones and trying a couple of different brands, I found out it was fouling because the fuel mix was too rich. I wasn't running the actual fuel ratio too rich as I had it at 40:1 which is pretty standard but a mechanic took a look at the needle in the carby and changed it around... Wallah! No more fouled plugs.

She runs like a dream now and I don't have to worry about running out of steam while hitting jumps. Just thought I would share this with other 2 stroke riders to try and save you from ripping out your hair like I was.

Cam

- Thanks for sharing Cam. As a two stroke rider myself I know how frustrating it is when they foul plugs (not to mention scary when it cuts out as you're leaving the lip of a jump). You're right about the carby settings, these need to be checked if it keeps chewing up plugs.

Hayden
-

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Yamaha.


Get The Basics RIGHT! And Watch Your Bike Skills & Enjoyment Increase. Over 800 Copies Purchased & Growing.. The Dirt Bike Garage Manual





Site Search