Need to take carbs off strip and clean ..you dragged all the gunk out of the tank into them ..jets will be blocked too ...clean out tank to
SOURCE: i have an 1998 xr250. it ran great and very strong
There are two causes of your problem that I can think of: firstly, it may be that you, even after changing some jets, haven't got the air/fuel mixture right. If i were you, I'd put the standart jets back in, set the needle position to the middle position, and screw the air/fuel mixture screw 2,5 rotations ( 900 degrees) out from fully screwed in. This should return your bike's mixture settings to approximately standart. Then, using this page http://www.dansmc.com/spark_plugs/spark_plugs_catalog.html
determine if you have a rich or a lean mixture, and adjust accordingly. If you have any more questions, or would like me to clarify something, please ask.
SOURCE: bike keeps back fireing when first starting
Hi and welcome to FixYa,
Initially, backfiring is a spark/timing issue or contaminated fuel (water) or as you stated stale fuel. AVGas would not result to backfiring but rather a stronger pull though would heat up easily.
Good luck and Thank you for using FixYa. Happy Holidays.
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SOURCE: vtx 1300s honda - starts sluggish - when it warms
When starting any engine, run engine until it will idle without the choke on, then ride.
SOURCE: 93 CBR decided not to run today
Well, depending on what your mechanical skills are, it may be tough to troubleshoot and fix your problem. I have the same exact bike, and it along with all other sport bikes are tough to work on because everything is very confined. You first have to start with the basics, Fuel, Spark, and Compression. Your going to have to get the fairings off and remove the gas tank before you test any of that. Once the tank is off, you can get access to the spark plugs and wires to do a spark test. Also while you are there, check to make sure the carb is getting sufficient fuel, or even possibly too much fuel. Leaky needle and seats in the carb bowls can cause lots of problems for starting and idling. And please don't blow yourself up! Exposed gas and spark test can equate to big flame balls if your not careful. If you need more help, I'd be willing to do what I can for you so shoot me an email at [email protected].
SOURCE: just had carb jetted and rode home fine. started
jet work is very touchy science-hopefully u had a pro perform it-incorrec ajust can fry an engine-inspec ignition to rule out electrical--r u gitten gas from tank
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