Question edited for clarity, wild guess what ''09 1125' is?
Big End bearings definitely. Main Bearings maybe. Little End (pistonconrod pivot) bearings possibly.
Question edited for a lot more clarity. It amuses me that posters throw a jumble of words at the page, don't read what the wrote and leave it to the Experts for sort out :>D I left your text as you wrote it. 'Year Make Model' needs to be first and in that order.
Question moved from Cars and Trucks to model category.
Tires are hard work to change unless you are very strong and have good tire levers. Better to let a motorcycle shop supply the tire and change the old tire out, just take them the wheel.
Or, buy the tire and take wheel and tire to a local tire shop. They will normally do bike wheels and balance them
https://www.google.com/search?q=2007+Buell+Firebolt+XB9R+Change+back+tire
You can use the following transformer as a replacement-
LET 60 class 2 12 V/60W lighting transformer from express lighting.com $18- slightly smaller
Had the same problem- customer service at home despit was underwhelming
as usual, they said that each manufacturer blamed the other, and to return it, they would not just replace the transformer. Typical of HD-you are pretty much on your own-lucky im an electrical engineer!-hope this helps
Coil or ignition module most likely. download the factory service manual for it so you can trouble shoot it - you can also check out badweatherbikers - they have a good buell tubeframe section there.
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.
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.
I have had two Buell Ulysses from a Brisbane Harley Dealer and have put a total of 80 000km on the two of them. I can tell you that if you have an after-market exhaust installed (EG Jardine, etc) then surging and backfires are the name of the game. Power Commander and other replacement EFCs are not the answer either (because no proper solution was in place before they stopped Buell's production). I do run a Jardine on my current model and putting in the noise limiter has made for smoother running. Also...Buell's are subect to vibration in the bars. I installed anti-vibration weights in the bar-ends and voila'...no vibration...just great as I can now see my speedometer...LOL. I hope any of this is of some use to you. I LOVE my Buell. I've been riding over 50yrs, I've owned dozens of bikes, motorcycles are my daily ride and this is my favourite machine (followed close behind by my Hayabusa).
Hi Make sure you have fresh fuel in it Check the fuel system for contamination (water or sediment) If the bike has been laid up then check the carb jets & airways are clear
