Wow. This is gonna get fun.
You are soooooooooo right. Here's the unadulterated high points...
there is a very noticible vibration. It feels like a very out of balance tire or a bent rim , but the rims are fine.
Have spun the wheel up while on the center stand and can see it vibrating the wheel and entire suspension and bike up and down. The thing is , I am pretty sure it is not the wheel or tire
I will however point out that if you are indeed a master of the auto mechanics world then you would never have needed to ask for help here. (my motorcycle mechanic said its a badly worn tire?)
Never said tire was good , never even mentioned the frame , never said CVT was good , never said CVT was bad , never said stem was not bent.
a friend who is a motorcycle mechanic had a look and swears that when I replace the badly worn rear tire all my problems will be solved.
I let the record speak for itself to anyone who actually reads the previous posts. I don't have a motorcycle mechanic , but brother in law does that for a living and also services quads and snowmobiles.
And , just incase someone (zombie) is wondering , I do infact know how to change the tire. Just not sure how I will make it fit on my snap-on wheel ballancer.
I suspect it is originating in the CVT
I am pretty good with mechanical stuff , and probably could figure it out eventually , but I have never even looked at a CVT prior to this , so the opinions and expertise from others will be of great help.
I was thinking a worn out variator/rollers. Could also be bad crank bearings or wrist pin. You're gonna have to open up the CVT, and fan side of the engine to try to narrow it down.
If you happened to actually read my post , you should have been able to garner enough info to realize that I thought I might have a problem with the CVT , a piece of mechanical equipment that I have zero experience with.
Never said tire was good , never even mentioned the frame , never said CVT was good , never said CVT was bad , never said stem was not bent.
Had to repair a bent steering stem and now I am riding it daily.
Even if you later find it is a bad crank the bike is worth fixing, and all the stuff for a crank install is under 200.00 including a crank puller. The bike is easily worth 8-900.00. (unless you tell people it has a twisted frame)
Re : the frame , It was not bent , at first I thought i had a bent fork , but when I took it apart I found that it was one side of the steering stem (triple tree ) twisted and holding one fork at a different angel. Heated it cherry red with a torch , gave it a bit of a twist and reinstalled it.
Going on your OP about the neck being twisted it is easy to assume the bike was in a wreck, and potentially broke a weld that you can not see.
The rear wheel out-put shaft can be bent.
A fork could be jammed.
An engine mount broken
An engine mount bushing worn.
The fact that the steering was bent and it wasn't running when you bought it are two things that just scream out, "I've been wrecked!!!"
If it were my scoot, here's the FIRST thing I would do. Take off every piece of plastic on the bike. Strip it down to the bare skeleton. Check every weld, motor mount, and shock mount for even the slightest sign of stress cracks or breaks. The frame doesn't have to be bent to be damaged. And, the welds on these scooters will never win any awards for strength.
I have taken the time to closely inspect most of the bike for damage. The bike was laid down on some gravel in a corner , but very minimal damage. ( I knew about this when I bought it ) , it had a few small scrapes on the right side plastic , and a very slightly twisted steering stem.
Never said tire was good , never even mentioned the frame , never said CVT was good , never said CVT was bad , never said stem was not bent.
I would order a new variator kit w/ rollers, belt, and rear 2000 contra spring. Install that stuff, and see what happens. We can hook you up to get all that stuff for under 100.00
Even if you later find it is a bad crank the bike is worth fixing, and all the stuff for a crank install is under 200.00 including a crank puller. The bike is easily worth 8-900.00. (unless you tell people it has a twisted frame)
the motor is coming out to be rebuilt , more as a precaution than a necessity. Will likely upgrade the clutch and variator as originally sugested by zombie.
Impressed by someone's abilities , namely , ability to read without understanding , ability to misquote , ability to relate personal assumptions as fact , ability to make sh-t up.
I may not have any experience with scooters , but I guarantee you that I have more experience rebuilding cars than you will in the near future
Have never owned a Muscle car , unless you count the 72 Cougar I had in high school .
I have all the paint left over from a Ford Mustang project anyways.
I let the record speak for itself to anyone who actually reads the previous posts.
It's all there except the Ritalin.
