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The old single coil charging systems are just barely enough to keep a battery up for average use. Kawasaki 750-800s were noticeably better but they did get hot. I remember the front cover being the hottest part of the entire engine.

I must be a little out of touch.

How much is a 14 year old SXR worth?? Im thinking $3000 plus a pipe and pump mods.

The first thing you will notice is that they have NO power, I mean a loaded UPS van will smoke it.. The second thing will be how easy they are to get on two wheels while turning right. Our city used them for meter readers, that's about all they were good for.

Just open the bottom adjustment screw, it controls low idle mixture.

What is your rust tolerance?

You may have to settle for a stock kawasaki 650 pipe or get an over the top pipe like a protec. Kawasaki 650-750 would work with a Coffmans pipe if the chamber was lowered a little. Yamaha engines are a little wider on the exhaust side when compared to Kawasakis.

Chinpad??? Most new poles use a piece of carbon with the sharp edge facing the rider. I'm sure there's a fashion victim or two out there.

How high was your rev limit?

2-3MM depending on the plumbing.

Pull the carb apart and see whats up.

Dump the flow control and use a restrictor. Keep the downstream temps under 180 max.

Aluminum expands more than steel so heating a stock stator will always make it loose. Some bearing/pump combos can be tighter than others so its always a good idea to measure everything up front or you can end up with a stuck/ruined bearing. I had to make custom mandrels in order to press them...

Solas stators must be looser now than the first batch that I got 10 years ago. Back then a lot of people were ruining bearings during installation. Im not hearing much whining lately.

it takes liquid nitrogen on the bearings, a hot stator, and a very swift installation to work with steel on steel fits. It is often impossible to get the shaft in fast enough before it warms and jets stuck. An aluminum stator just needs 200 degrees or so depending on how tight the final fit is...

Are the splines on that aftermarket X2 shaft a long 750 style or the short 650 style?

Think about your future. You will eventually want to work less and still have a decent standard of living. People are too different in their abilities and personalities to accept much in the way of career advice. All I will say is stay far away from aviation !!!

Stock Superjet cooling line is big enough for typical applications. You may want a dedicated second line for hand warmers.

Add some red loctite to the outside of the bearings if your crank does NOT have orange plastic bands on the bearings.. This will help prevent fretting between the bearings and the case.

Well, if you take a high port cylinder and add a dry pipe the power comes all or nothing. Thats why everyone toggles the throttle a lot at slow speeds. A wet pipe on a stock cylinder isnt too bad.