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Recently acquired a 1963 Cub converted to a TR20 replica complete with 3TA forks. I am a relatively light rider (65kg) and find the suspension very hard and also noisy with the rebound 'slam'. I am toying with the idea of fitting progressive springs (and possibly rebound springs) ?? The legs have casting numbers H1119 and H1120 (possibly suggests sidecar origins ??) with what I believe are a red/white marked 464mm long springs. The units themselves feel smooth and tight so I'm disinclined to dismantle them further. Any experience, advice or suggestions for suitable solutions would be very much appreciated.

You can start by cleaning the carburetor and making sure it is seated in the manifold properly. If a 2009 has the hot start button, check for leaks.

Possibly air got into the clutch hydraulics while it was lying down. Alternatively, if you pulled the clutch or pressure plate off, you may have let the clutch pushrod ball fall out and not notice it. I doubt the shift shaft has anything to do with it.

Hey first post looking for some guidance on my recently acquired 06 rev 3 had some wiring issues which lead to a not running issue which lead to me kick starting it with a couple loose bolts and cracking the inner clutch cover. replaced the cover got it all together and now have no clutch disengagement. when I pulled the inner cover I pulled the shift shaft out a bit before I noticed. i pushed it back in and seemed fine. Im very mechanically inclined just new to trials bikes does the shift shaft go into the slave and did I make a boo boo and pop the slave out?

Hi again, just had a look for a few pics to jog my memory (Google, not pics of mine I don’t seem to have any 🤷‍♂️). Clearly my memories are clouded as all the pics of the MH version show a red frame, and I must be getting single down tube frame mixed up with something else, maybe mates cota 250. Also with the tank, I thought I remembered a slightly textured finish plastic tank on the MH but again all pics show otherwise, a very shiny red tank which could be fibreglass, mine definitely was fibreglass but white. On the slightly older models, the rear lower edges of the tank unit below the seat, had a ‘flaired’ shape over/around the rear shock top bolt ( presumably for comfort against the leg/boot) but the later ones seem to be trimmed along as a straight edge. In my own experience those ‘flairs’ cracked & crumbled so ended up being trimmed off & I expect many others were too. Any way good luck with your project, I hope you find the detailed information you’re looking for, and that my vague & sometimes inaccurate memory helped in some small way. I always thought it was a great little bike, despite its utterly rubbish brakes in water🤣. It didn’t seem to matter what cables or shoes or mods thereto, as soon as they got near water they were useless for the rest of the trial. Wheels out first job after every wet event ! Oh great days eh!

I have a problem with the carburetor on my beta evo 300 4t 2009 mikuini bsr se 33-79 I can't combine the gasoline and air The engine stalls at low speed Can you tell me how to fix it

New seals and bushing, disassembling the lower fork legs, sand blasting casted parts, new stickers ... New bearings, polishing the hub, new spokes & nuts. Ultrasonic cleaning disc and screws. Coming soon : new steering bearings.

thanks for your reply, a picture is now emerging as apart from the rivetted plate headed as montesa/honda mh200 and also the stamped numbers on headstock bearing the same montesa/honda numbering starting with MH200 its looking like the bike is a mh200, my bike has gold akront rims and with half width hubs and when i purchased the bike it had a black frame which i assumed was incorrectly painted by some previous owner, i have since painted it red but didnt find any evidence of it having previously been red unless it was blasted or dipped however as the rivetted plate shows no signs of being disturbed this is unlikely, i have stripped the tank to the gelcoat and its never been red so looks like i have a mh200 with a cota 200 tank, as my engine has same last three digits as the frame number i assume its got its original engine,

Scrub that, I just found some on FleaBay 🙂

I got the bike out yesterday after not using it at all last year and it was generally fine but the rear brake was binding a bit so I decided to overhaul it and replace the seals. It appears that Beta only do a kit which includes new pistons, which I don't need - has anyone found an aftermarket supplier for the seals only?

Apologies once more looking at the schematic I've figured it out

My apologies Yamaha ty175

Hello there, have you also considered the possibility of model ref Cota 200 ‘C’. Back in ‘85 I bought an (alleged) ‘83 model which carried the 200C decals on the white tank unit just under the seat area. It wasn’t road reg’d but I think I had a dealer sales receipt from a previous owner listing it as 1983 200C. That was around the transition time from montesa to Honda. Unfortunately it was stolen a year or two later & I didn’t have any record of numbers but 29M sounds familiar (and isn’t far from 29H when reading through layers of paint). Mine had white fibreglass tank (I believe the MH models all had red plastic tanks with a large MH logo running along the side), red frame with single down tube to a curved split cradle under the engine with a pretty poor thin pressed bash plate. The rims were gold (akront branded ?) with black hubs and particularly notable was half width front hub where the earlier ones seemed to have smaller diameter full width hubs. If I remember rightly, when the MH models came out (84/85 ?) they were the same as the ‘C’ except for colour scheme & plastic tank, red tank, black frame. I don’t remember any riveted vin plate, steering lock was just a kind of tube welded to the headstock, holding the lock inside with a thin metal pivoting cover over it. Appreciate there’s nothing definitive in that just (pretty vague) memories but it might jog someone else’s memory. cheers

Andy, which bike are you asking about?

help required to identify my new purchase to hopefully obtain proof of manufacture date to enable registration for road use for dvla, bike was bought as a cota 200 but having doubts now as may be a mh200, it came with a white tank and cota 200 decals but has a montesa honda vin plate rivitted on front of steering stock and also a stamped number on side of steering stock both numbers are the same and start as MH200 prefix, the engine number has the same last three digits as the frame number but starts with 29H so numbers appear to be matching, however the 29H is puzzling as sources suggest 29M should be the prefix, the frame has the engine protection loops and the carb is the amal mk2, have tried contacting honda uk when i thought the bike was a cota 200 but they were unable to date bike saying numbers incomplete ? hoping someone can help or suggest who to contact to identify bike.

Hi all probably a silly question to ask but do you need to have a shim internally after the washer and circlip against the case on the output shaft to the clutch regards Andy

Hello @b40rt, I can see why you say that as I put something up about the new SINCRO model but I have no connection with the sale of Beta trials bikes or any type of Beta motorcycles. I just think as a recommendation and in the current down turn they if any will still be around to provide spares back up. Best wishes. Alan.

"That's great! The more the merrier. If you want to stay updated on everything Zelhem-related leading up to the event, check out Trial News Europe (trialnewseurope.com) — I cover all the TrialGP news in 7 languages. See you in Zelhem!"

Yes , i do .., and a friend !!

With Toni Bou having already claimed his 20th consecutive X-Trial World Championship title at Chalon-sur-Saone, the final round of the season heads to Tarragona on April 18 — a first-time venue for X-Trial at the CaixaBank Tarraco Arena. While the title is settled, there is still plenty to race for: Jaime Busto (GASGAS) and Gabriel Marcelli (Montesa) are locked in a close battle for second in the championship, and Harry Hemingway (Beta) will be looking to build on what has been his best-ever X-Trial season after pushing Bou to the final section in Leeds. The Tarragona arena promises to be a spectacular setting for the season closer. Will anyone be able to beat Bou on the night, and who do you think will seal the runner-up spot in the championship?

Thank you. It is still under development and I will continue to develop it.

Interesting that you're drawn to "Beta's" ....

When I click on a news article, it won't scroll to read it.

As you can tell the world of trials is absolutely booming and overflowing with enthusiasm, or it was years ago until Donald Trump and his mates came and killed the world economy stone dead , I would recommend using any money that you were thinking of spending on your trials bike to help build a nuclear bunker in your garden. If you really are intent on trials then I would say that a BETA EVO 2010 on is a bike that is good as a modern trials bike and has good spares availability although nothings cheap these days.

Edwin, that is an excellent news site. I’ve put it in my favorites. Awesome!