According to the parts list the water pump pin is 12mm long. I hope it is that pin as it is easy to drop if you are working with the bike on it`s side.
I would check the kick start idler gear (That would be the easiest) but it would make more sense that it is the bearing that the kick start shaft slides into.
You made me think of something. Did you adjust the levers for his hands? The master cylinder piston has to have free play to move it`s whole travel or else it physically cannot push fluid.
If it`s new you should be talking to your dealer. I do not remember clutch drag on my son`s 80. At 10 he is not going to be backing the bike up in gear, but he should be able to find neutral. And you are right about the difference between the electric and gas bikes. Most kids have not made the change very well.
No worries, we have four riders that have had by passes and one more with a pacemaker. The one that had it done in `97 was one of our top riders for years afterwards. After the surgery he took up extreme sports like Heli skiing and kite boarding. It`s all about attitude. Just have fun.
And I laugh each time a guy falls and tears those pants and ass. I still wear mx pants, but remove excess padding and the silly rubber labels that do not breath. By the way I started riding trials long before the silly gear came along.
The Beta owners manual has the starting points for your weight. The front forks spring preload (left) should be ten turns in. They leave the rear to your choice. The earlier Revs had the rear spring compression. Seems it was 105mm, but that was long time ago for my brain. Good luck.
The only thing that used to be consistent in trials was a max score of five points in a section. Now in the World round you can fail a section multiple times. You can fail while in the queue, for walking in the section, for the minder or other in the section and then you still have the score of the section. How many people on here responding even understand World Round rules?
That was a great year for the Beta as a lot of upgrades were done. Nothing wrong with the Sherco. You really need to go by condition and find out who and at what level they rode. A used bike with the lowest amount of use would be the first choice.
Beta has always been a bad buy on there first year models. 1990 Zero, 1994 Techno, 2000 Rev3, 2009 Evo. All were not the bike to have. I have always liked Beta, but those were the dogs.
The `07 and `08 were a lot lighter and more powerful than your `02. The revs have more room as the Evo feels cramped. I would advise against the `09. Why buy the year with teething issues?
As in the OP got a new clutch that was too thick. You could just burn the clutch in a high gear, might take a couple tries to get the clutch broken in instantly.
This is how without any parts.
This was the first vid on it. https://www.youtube.com/watch?v=hjoj7n74G0s
Here is another. https://www.youtube.com/watch?v=n0adW9BsAN4
Actually I started celebrating on the 19th. With my 7 grandkids and friends running around the house for the two weeks of winter break requires an attitude adjustment daily.
You have to unload for every obstacle. Trials is all about body position. There is a couple crash vids just recently loaded on the front page. Almost all the crashes are from poor body position. Are you going to be able to make some events soon? Pitts trials club has a Ray Peters trials school on the calendar for July. He is a great teacher. Lucky for us he rides with our club now.