lineaway

I can't believe anyone are still buying these. I bought one of the first sets available, rode one event and threw them in the trash.

They were mainly scooters and small motorcycles. Not many trials bikes.

Take a close look at the magnets on the flywheel. They would come loose over time. They would break when the mains became worn.

I would clean the carb again. You need to spray all the passages in the carb body to make sure they are clear. All jets and any holes in the emulsion tube. Good luck.

I would say that marking has nothing to do with what needs done right now

EbC ck 1171 friction plates. Plus spring kit from japan.

It is a shame you have to go through the pump issue. The 4rt was rock solid for it`s first 16 years. The pump issue has been around for almost 4 years now. Terrible mess.

We went over a decade without being able to roll back. The rules were all over the place. Some places the good riders could hop sideways and then reposition themselves. Quite silly as it was the same spot if you would have just rolled back. The world rounds did away with the no stop about 3 years ago. Most places have gone back to the roll back is legal, but if you dab going backwards it is a 5. Finally there is a push for all trials to get the same rules. Very hard for an outsider to understand our sport.

The old Beta`s had to have a special float setting. https://www.trialsport.com.au/beta/Manuals/mikuni/

Have you pulled the header pipe off the bike. Sounds like it is full of fuel. The crank could be full as well.

Yeah, he was asking about the 301. The 300 cota is slow compared to the 301. The Montesa has the best suspension and handling. Yeah, the beta std runs more like a sewing machine. Never liked the 4 T Beta.

I love my Beta`s, but recommending the 4 stroke as super smooth over the 2 stroke is quite funny. I have many hours working on the 4T. Ny son had a real good running 300 4T with all the upgrades. When he went for a new bike I forced (invited him) to buy a Montesa. He has loved it ever since..

The Beta is the easiest bike to learn on, but not a 300. If you need a 4 stroke buy the 260. The 301 is too quick.

Ps You can take off the flywheel cover. Grab a hold of the flywheel to feel any movement. If you feel any up and down movement, you need new main bearings and seals.

The jet tower gasket can leak and cause all kinds of poor behavior. That`s the piece inside the carb with torx security screws. The original gasket can shrink. The mating surfaces are not very plumb. Some people have good luck filing the surfaces flush. Sometimes just a new gasket fixes the issue. You can also search you tube for ways to test your carb.