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2006 cr250

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Anyone know the best combination of gas/oil for this bike? e.g. ratio and type of gas. I ran it 40:1 with pump gas but am hearing a couple buddies say their 2 strokes detonate and need race gas. Also have a PC works on the way and was wondering if reeds are worth getting. I had a PC and v force on a cr125 and was a great combo. Fill me in on some knowledge!

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everything is ok. i just bought the bike week ago so just started experimenting with mixtures. started with 32:1 and then 40:1 i have only ridden it twice

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I use premium pump gas, and HP2 oil mixed at 32:1 ratio.

In a stock bike 93 octane pump gas shouldnt detonate, if you have head mods etc. then it could detonate.

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My unmodified 03 detonates like mad with the 93 garbage pump gas I've been getting.

A switch to vp c12 has cured this entirely. Klotz r50 36:1

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In my 02 i run 50/50 sunoco leaded 110 and pump premium 40:1 with lucas oil. I do get some pinging with just pump gas. I have set my to .048 (was .070) and am more conecrned about pinging after that

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Or you could go 16-1 and use a 10 series NGK plug.👍

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Race Gas. 100:1 ratio. Pin it.

If that doesn't work try 50:1 with VP U4.2 and a 186 main, 69 fuel screw, and needle all the way at the top clip

Funny post but let's reserve 100:1 to the trials bikes only. 👍

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