My jetting setup (2012 300)

[GlennRMK]

Just thought I would share my setup. I'm in the mountains southwest Montana and ride 6-10k quite mostly. 6-8k early in the year till the snow melts. Mostly technical single track and I'm a slower B class rider.

I have a 2012 XC 300, all stock.

Running NEDJ Suzuki needle in the 2nd clip, 158 main, and 38 pilot. Did tweak the float height just a touch (leaner). Klotz R50 oil at around 45:1. 91 octane non ethanol fuel. Had this setup for almost a year and about 40 days of riding. Ridden as cold as 40 degrees and as hot as 90 degrees.

Very smooth power with very little hit. Excellent fuel economy. I've done 60 to 65 miles without hitting the reserve. Keep in mind this needle allows you to run a leaner main then the stock needle.

Tried a 155 main but made it too responsive/aggressive for my taste.

I've checked and changed the plug a couple times. Always looks safe, maybe even a touch rich with a darker brown color. Never fouled a plug.

The stock needle gave me more hit, but I really like the smoothness of the NEDJ. Fuel economy was horrible with the stock needle. Less then a 50 mile range.

Love the bike with jetting. Works great!