Regarding the carb issue, I seem to remember two things that might apply. There was a siphoning issue with some 2T vent lines. I'm not sure it applies to 4Ts but it's worth searching the Beta forum just in case. They also mention an adjustment that limits float travel. I'm aware that the 4t has a different carb but it might something to look at as it can cause the float needle to stick.
I am working on freshening up my 2020 Evo 300 4t for the coming season and I have two questions at this point. 1- I bought a TRP shock to and am wondering if it matters which way I orient it? It looks like shaft up gives easier access to adjusters, but print on the shock indicates shaft down. I searched the web and people seem to do both. 2- My bike tends to dribble gas out of the carb vent lines when I am riding rough terrain. I don't relish getting gas in the streams, etc. The float level is to spec, and it still happens. I remember running vent lines up and over the carb in the past, and I am wondering if this would help, although I imagine it might defeat the venting. Another thought I had was to run the line into a capture tank where it could just evaporate from. Thoughts on both of these?
I did a search and came up empty handed. I noted that the 2t and 4t Evo's have different part numbers for the shift levers. Are there any aftermarket shift levers available? The OEM one had a fight with a rock....
We gave him his Oset 12.5 eco last Wednesday, and he took to it immediately. I left the pegs on and down and he never thought twice about using them. They live on 4 acres, so he just started riding around the house, he also made tight turns around trees in their orchard. What I was most impressed with was his ability to come to a halt and remain balanced. He can ride REALLY slow without needing to wiggle the bars... until he can't and then he tips over. Being 4, he is prone to losing attention. 2 things that I did to help with that was 1- Play, "catch Poppi" in which I jogged ahead of him around trees and such and he followed. He was happy to do this until I was tuckered out, 2- Have me follow him on my trials bike. He wasn't as enthused to follow me here, so I just putted around behind him. Overall, it was a total success, thanks!
My daughter started around the same age on the older Oset 12.5...
Tire pressure, as long as the rim doesn't spin in the tire, you are good to go. What is the exact pressure is hard to say, as their quality is so-and-so...
Few things I learnt:
If the pegs start to be an issue, zip-tie them up. But first, see if that is an issue at all
Speed - rather a bit faster (not crazy fast, but jogging speed is better than walking speed. Helps with the balance)
Get a tether switch (if you don't have - normally closed). For first few rides you can run next to him and keep the tether if anything goes wrong, you can just pull it off. The engine braking is very good with these bikes... Later, after each crash, he can get the bike up himself. I didn’t have it in the beginning and while she was lifting the bike, it caused some very weird spins and loops.
If you don’t have any mx or trials boots, make sure he wears some higher boots (my girl used some robust rainboots). First of it helps when the footpegs hit, but also when the bike drops on the leg. It is heavy, especially with acid batteries. Knee guards are also a good investment
I am giving my 3.5 year old grandson an OSET 12r and I an wondering what tire pressure folks are using and any other set up tips (not that he'll notice at first!). Also, since he is skilled on hs balance bicycle, my plan was to pull the pegs off for the first ride and let him get used to it, then put the pegs on a day later or so. Thoughts on this or any other suggestions on making his transition easier?
Great question, I love my 4t, and thanks to you the clutch is amazing, but... I'd REALLY like an electric bike. Preferrably at the same price point as your average gasser.
If your last boots lasted 16 years, why change brand if there's a pair you've obviously liked and have lasted!
That said, I've tried on Sidi boots and they pinched, Gaerne for me all the way, good fit, accurate sizing and well made.
Hebo's are hard to come by in the US nowadays. Last night while searching around, I found some discounted Stylmartins in leather that look a lot like my old Hebo's. They are 50% less than Gaerne's and Sidi's, so I think I will order them. I did find a few positive reviews, one in particular from someone I know and trust.
My 16 year old Hebo boots are pretty much toast. I traditionally wore Sidis for MX and Enduro, so thought I might try the Zero 2. Actual user reviews are non-existent. Can anyone weigh in? How do they compare to other boots you've owned? I normally wear 43's, but my Hebo's are 42's. I prefer a tight fit for trials... how is the Sidi sizing? Any issues?
I love my 2020MY 300 4T. I shimed the clutch and replaced the plates with Barnetts, thanks to Don Williams, and put a 9t on the front which was a bit much, maybe adding 2 in the rear would have been better. I also put pegs that are18mm further rearward, which improved the balance for me. For hot starting, my fool proof method is to simply hold the throttle wide open while kicking. It starts first or second kick consistently.
This thread has been dormant for awhile. I am wondering if anyone has updates on the various e-trials R&D efforts? Is anything full sized with a clutch other than the EM realistically coming to market anytime soon?
I want to give a HUGE shout out to Dan! He has patiently helped me sort out my clutch issues on my 2020 300 4t, and even provided the parts gratis. My bike had what I understand to be the classic Beta clutch drag, with rpm's dropping significantly when in gear and the clutch lever being disengaged. It was causing me to stall at inopportune times, and to need to blip the throttle while doing tight turns or between steps. First, Dan sent me some super clean 3mm Barnett clutch plates he had around. They helped some and cleaned up the engagement a bit, but there was still drag, so next up he sent me a bunch of the requisite washers. I installed two of the .0025's, and it made a huge difference! I was SO much more confident on the bike and was immediately riding things I hadn't been able to since back in the day. I hadn't realized how much I was blipping the throttle to compensate for the clutch drag and resultant RPM drop. I am going to experiment with adding one of the thinner ones and see what that does, but am happy with my first WAG. They were a total game changer, and I have Dan to thank for it!
Thanks Dan and everyone else here who shares your expertise so freely!
28 pages is a lot to wade through.... I bought a new 300 4t from Mike Comer and love the bike, but find it stalling at inopportune times. I used to be a decent trials rider, but have been on hiatus for 10 years, and am now 60. With that in mind, my technique is a bit rusty, but I do remember how to ride.... So, my thoughts on the stalling is that the clutch is dragging, and the resistance stalls the engine in situations where I have zapped on to a rock, need to stop then turn tight. Somewhere in all of the clutch shenanigans that happen in this simple maneuver, it will stall at times, cold or warm. Is the original clutch mod Dan illustrates applicable to my bike, or is there another approach?
Thanks so much, that is super helpful! There is so little info out there on the Koberg and your direct comparison of the two bikes is exactly what am looking for. They Koberg pricing is about the same as the Oset here, they are both around $4400 usd, but the Oset is sold by a dealer I know and trust, so that counts for a lot.
I am mostly going to use it to chase my grandson around and to demo sections for him, I used to be OK, but really have no interest in competing again. With that in mind, pretty much anything will be fine, I just don't want to get something that sucks! The only reservation I have about the Oset is the throttle. I have read that most people who have come off traditional gassers hates it. Have you done anything specific with your, or do you find it OK?
I am wondering if there are any updates on the Kuberg. As an adult, I am trying to sort out what all my options are for an electric trials bike. I'd love to here more about the Kuberg, I haven't seen any objective reviews, do you know of any?
Yes the Plonkers are great but fairly far North. I used to ride with the Western Mass folks more often as that was actually closer, and I competed with NETA regularly. Since I live on 40 acres, I had something like 20 or 30 sections on my property, but they are all trashed now, and I doubt I'll clear them anytime soon. When my grandson is ready to do splatters I'll be in the woods again liberating the ledge! A B25 would be quite the project. Pics?
My grandson is interested in motorcycles and turning three. His mom seems open to him riding trials (versus mx, etc). I am imagining that kids outgrow their Osets regularly so they come up reasonably often. Does anyone know of one available in the NE US?
I am becoming re-interested in trials after a long hiatus. My grandson is turning three and is interested in motorcycles and my daughter has fond memories, so is open to the idea of an Oset 12.5. I figured I might pick up a used whatever to plonk on and help him learn (in the day, I was never great, but did ride advanced respectably). Anyways, thanks for still being here as a resource!
TRP shock and carb vent line questions on Evo 4t
in Beta
Posted
Thanks Steve, I'll look into those two.
Ward