Question about 2001 Yamaha YZF-R1

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I have a 99'yzf r1 and I'm not sure what's wrong with it, The bike was running fine yesterday. I got off work today and went for a ride with some friends, I stoped and filled up at a bp and about 15 minutes later it started to run strange. Now the bike takes longer to start, idles rough, and hesitates when accelerating. Any help will be appreciated, thank you

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Hi sounds like bad fuel, if it was an ethanol blend you bought, it could have a high water content, BP has a fuel guarantee but its pretty time consuming to get them to do anything, especially if it was a distributor site, not owned by BP.
Drain the carb bowls into a clean container and see if you can see any water or contaminants.
If the bike rides reasonably, it might come good on its own, with the next tank full. Make sure no ethanol( so bypass BP)
If you got some free water in your tank most of it will be below the reserve pick up, so the bike may stop completely if it gets to reserve.
Unfortunately if there is water in the bottom of your tank this may require draining the tank. as all the fuel additives will turn this into milky looking fuel that will make the bike run worse.

Posted on Aug 23, 2010

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Posted on Jan 02, 2017

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