The first is to check the balance of the bare wheel when you are changing tubless tires. We all know the drill of the tire manufacturer marking the lightest point of the tire with a colored dot. The dot is supposed to be positioned next to the valve stem as this is assumed to be the heaviest point of the wheel. Well, you guessed it. I've checked many cast wheels with the valve stem in place and not one has been heaviest at the stem. This is especially true of rear wheels which are larger. I mark the heavy point the first time I change the tire on a new wheel and don't check it again unless the valve stem gets changed.

Here's another tire balancing tip while I'm at it. I have several BMW adhesive weights and use them over and over. Simple double sided tape from the drug store works great...not one lost weight yet. You could do the same with strip weights of course.

If you are having charging issues, the stator is easy to check. Unplug the magneto wires from the rectifier and start the bike. Run it just long enough to check the AC output of each of the three leads to ground. Each one should produce 20 to 60 volts. The exact amount isn't as important as getting the same reading on each lead.

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