Weird noise comming from the gearcase

Pull the final drive apart and take a look at what broke because something did.

sounds as though you will have to dismantle the engine and take a look inside and move the clutch around and see what happens. You can also take out the operation rod of the clutch and give it a good clean

Check the plug. I have had a very similar problem just recentley yesterday infact. It could be that you are running the oil mixture too rich as well...Good luck

The gear case you are referring to is actually the transmission, and yes this is not a good sign. The seal has gone out. its usually cheaper to get another washer than repairing the old one. However if you would rather repair this one then i would try to shop around and find the best bargain.

You don't mention any other symptoms so I will assume the electronics, ie speedometer, tach, and such, did't start acting weird? If that is the case check your grounds these old rigid mount sportsters are known for vibrating the grounds loose.

You have some seriously bent shift forks. The guy who sold it to you did you no favors. If the bike is a 1998 model, most bike shops won't work on it. 10 years is the limit in most cases. Lots of shop mechanics repair older bikes at home. Ask around and find one.
This is a major repair. I normally tell people to take it to the shop just so they don't get into such an involved project.

The motor comes out of the bike then turned upside down for removal of the bottom case. The gears and shafts gotta come out so you can get to the bad forks. There's much more involved, but the idea is that you are better off having someone with experience do the repair. Do a new sprocket shaft bearing and crank bearings if the mechanic says so. Do new seals in any event. Call a dealer and ask what the cost would be to just replace the shift forks. Then add $75 to $100 more for bearings and seals. The home mechanic will cost about 25% less. Tough break guy. Sorry.

Please rate this solution. Thanks

It sounds like you have cracked or broken one or both sealed cartridge bearings if thats what your bike has. If it has ball bearings in races they might be broken. Try loosening your rear wheel enough to take the chain off and then turn your crank. See if theres a funny noise or if it feels a little weird when its turning. If you broke a pedal bearing you should be able to tell just by carefully turning each pedal with your fingers and seeing what it feels like. In any case unless you have the tools to repair it you will have to take it in and get it repaired.

It sounds as if your transmission has failed. look for a good transmission tech in your area and get it priced up

ry useing blue LOCTITE on the pinch bolts and other fasteners to keep the shifter from vibrating loose again. I had the shift linkage vibrate loose on my Thruxton when it was new, I had to fix it on the road to get home.

send it back to bose in Framingham, Ma for repair. Get loaner from where you bought system.