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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
06 YZ250 Ride.report
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[QUOTE="i_955, post: 1012205, member: 57722"] For initial break in, be most gentle on the bearings. The less stress on them the for the first 15-30 minutes the better. After a heat cyle or two rev the engine freely but not in 5th gear at 80km/hr or in deep sand. No Stress! Change your engine oil often and the forks, and shock soon after the engine is broke-in... There will be all kinds of aluminum shavings and dirt in there that the original oil will rinse off. I don't know about 16:1 but that oil rich mixture is to lube the fresh bearings in the crank. If you go easy on them initially, they will break-in fine at 32:1... Nice bike! In my area there are lots and lots of 4 stroke left overs but no 05 250YZs 2 strokes anywhere. :( [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
06 YZ250 Ride.report
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