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Honda MX & Off-Road Dirt Bikes
04 CRF250 HARD to start cold
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[QUOTE="biglou, post: 704591"] Sounds rich if it is starting with the hot start pulled and without the choke mostly. I'm not familiar with 250F jetting, but if a 40 pilot is stock, I'd think dropping to a 38 or even a 35 wouldn't be too far fetched at 5k'. 40-50 degrees doesn't seem to be [i]that[/i] cold to offset the altitude with denser air. I'd try the 38 pilot and 1-1/4 turns out on the pilot screw. If it still starts with the hot start pulled, I'd drop the pilot to 35 and try it. You definitely won't hurt anything swapping brass and tweaking the pilot screw trying to find the sweet spot for cold starting. [/QUOTE]
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Honda MX & Off-Road Dirt Bikes
04 CRF250 HARD to start cold
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