20 Most Recent 2006 Buell XB12X Ulysses Questions & Answers

The metal they are made of shouldn't make that much difference. It tends to be a trade off between them. Copper tops produce a better spark but they commonly only last about 20 to 30 thousand miles between changes. Irridium plugs last a lot longer but they don't produce as good a spark. Your problem sounds like it could be a fuelling issue. Back firing is usually a sign of a wrong fuel to air mixture. Too much or too little fuel in the mixture. Too much fuel ignites in the exhaust at the wrong moment causing a 'bang' out of the tail pipe. When was it last given a Full Service? You could try running some Good Quality fuel injector cleaner through it. Try this. At about half tank add the correct amount of Fuel Injector Cleaner to the tank and just let the bike idle. DON'T Rev it up as this weakens the amount of cleaner going through the engine. Let it idle for about 10 minutes to get the engine to working temperature. Take it out for a good long ride at a constant steady speed, (A freeway ride). Don't race the engine to high speeds. Let the tank run to almost empty then fill to the top with one more dose of injector cleaner. Use the bike as normal for that tank full then fill with just fuel as normal. If this doesn't help get a Good Bike mechanic to listen to it. The actual sound can be a clue. Backfiring can also be confused with 'Popping and Banging'. That's that spitting and banging noise performance cars make when they let off the gas quickly after accelerating really hard.

ECM under seat/ bad ground in wiring harness most cost common Uly Problems

The primary chain adjuster is at the bottom of the engine below the shifter - looks like a big nit in a shaft that has a allen key hole in it. loosen the nut and turn the bolt. Adjust per the manual.

The fuse blows because of the amount of current being drawn through it without a proper ground. When you install the fuse there is a rush of electricity being pulled through the relay to power the ignition and POP goes the fuse. If you Put the relay in with the key off It probably doesn't blow the fuse.

Check your fuses, does the engine light stay on? If so - bad ECM, if not - check your coil if it passes the ohm tests them check the crank trigger just above the oil filter behind the round plate that has the two rivits in it.

If the starter turns and stops and turns again without your finger coming off the switch the starter needs to be replaced.

Your fork seals and bushes will need to be replaced.

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Many thanks

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sounds to me like it has a accelorator pump issue, have it checked out, but that is my 2 cents

I ended up replaceing my left footpeg and shifter that I broke off in the fall I previously wrote about.  When I was taking the shifter linkage upper screw off it cause the transmission to shift from the torque.  I suppose it happened a couple times as I was looseining the bolt.  I believe that would have been an upshift.  Now that I have it back together it wont shift.  It is stuck in a high gear.  I hope I did not really screw something up.  Any ideas on what happened or what I should do. you should try jumping on the shifter. This will sound stupid on my part but have you tried rocking the bike back and forward while apply pressure to the shifter this seems to help on my bike to get into neutral,,,

Front brakes are locked up

It appears to be a known issue. https://www.google.com/search?q=2002+Buell+Blast+oil+leak ..

Try these checks. First you can't check compression by listening to an engine. With the ignition OFF sit on the bike as normal with the kick stand up. Put it into First gear, release the clutch lever and try to roll the bike forwards about a bike's length. If the bike rolls less than a shoe length then refuses to roll that is good compression on the engine. Black smoke out of the exhaust suggests there was too much fuel being sent to the cylinder. If it is cranking and trying to start it suggests it is still a fuel issue. This time possibly not enough fuel. Check the fuel filter is clean. Replace it if your not sure as they are not normally expensive to buy. Check the air filter as well. A dirty air filter can affect the engine more than you think. Try these checks and use the comment button below if you need more help.

Does it feel like the clutch is working properly but when you put it in gear A doesn't go anywhere?

NO FILE PUMP RELAY AS FAR AS I CAN FIND OUT

CHECK THE GASKETS BUT IF I WAS YOU I TAKE IT TO A MECHANIC ASAP.