Question about 2000 Buell X1 lightning
The bike runs fine at low speed, but on the freeway it acts as if running out of fuel.
There are so many different things that can make the bike do that. The fuel pump could be going out(VERY COMMON) or you could have a dirty AIR FILTER causing the restriction. if the fuel filter was the problem you would more than likely have some backfiring or popping coming from the engine. Need more info to diagnose it. However if you want any parts - Harley Davidson and American sportbikes are a few of the only places to get em.
Posted on Oct 21, 2013
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Posted on Jan 02, 2017
SOURCE: I have a 2002 White
Try spraying carb cleaner on throttle body then check.If its running smooth then its fuel pump related issue.The fuel filter is either clogged or fuel pump is the cause of problem.Running rough actually indicates towards fuel pump issue.But still get it checked by spraying carb cleaner on throttle body.------ also recheck the heat sensor connections are they getting burnt or loose.If all getting checked ok, then it can be ECU related issue.But first check the fuel pump, filter, heat sensor connections.Also re check if the error code is changed.As you mentioned the buell runs fine with throttle open, it can be tps related error.Tps means throttle position sensor. ----------- If all checked ok, then yes it can be ECU.---------- This should help.Thanks.Helpmech.
Posted on May 22, 2011
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Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
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