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The only way to find it out is to compare. I have no data about it. The bike feels super light and well balanced. I already assembled the engine back, currently I need to adjust a squish clearance for 1.2 mm. It was 0.9. I ordered 2X0.4 gaskets on top of 0.5 base gasket. Also, the piston feels a bit lightweight and I'm wondering about engine balance.

Does it have the same transmission ratios as the trials engine?

A standard 250 1997 Techno has a lovely soft motor. Technos came out in 1994 and were highly responsive - probably too responsive for the average rider. The 1996 model was made much easier to ride for the average rider and it stayed like this for the rest of the years of the Techno (96, 97, 98, 99). By the way, is your Techno a 250 or a 270?

Thanks for the replies both, well having finally got out to ride the Evo I must say the power is there in abundance! Too much power actually as I flipped the bike at least twice may be three times today , this was more my ineptitude then the bikes fault ofcourse but the geometry of the bike and low gearing and my riding style which was always to muscle the bike around made a lethal combination lol I was thinking of taking the Techno out but I think that could be even more of a handful but I need to do a lot more practicing before entering a trials that for sure........I'll keep the Low compression for the moment , thanks again gents

Then a beginner Trials machine does not currently exist and it's time to find a new hobby.

The EM Factor-e might not be considered a beginner machine (it costs too much for one thing) however the ability to calm it down with adjustable engine maps makes it very suitable in my view. As a rider gains skill and confidence they can increase the available power using the mapping adjustment on the app. The main thing for newbie riders is to ensure the lanyard is on as the bike(s) cannot stall and will continue to drive the back wheel after you fall off. Electric bikes are not affected by altitude either. Well worth getting a test ride if you can. Petrol is still a better option for road bikes in my opinion and may well be for many years to come, but for trials the battery bike is a very sensible choice.

Hi, Is it possible to use 1975-1976 LH and RH crankcases from YZ125 with the all the components and covers of TY175?

We've had both 125cc and 200cc Shercos in the stable. The 125 is easier to kick. My wife transitioned from the 125 to the 200, but it took a toll on her knee (which was pretty beat up from running). For infrequent starts during trail riding, it may not matter. But repeated starting during competition may be a problem. I found the older Ducati Energia ignition system more reliable than the newer Leonelli. 2004/2005 was around the changeover point.

No I can't, I did check it for several times. My bike identifies as a trial, according to the VIN number but there is a lot of difference. I’m blaming the carb, it was running on lean and that caused a cold seizure. I have no data on factory settings. I like this bike, it's a bit different. I'm going to keep it in along term and that's why I'm trying to find out all potential issues.

The air at 5000 feet has only 83% of the density it does at sea level. This means the engine can only make 83% of the maximum power and torque it would at sea level (assuming it's jetted properly). It will also be proportionally easier to kickstart due to the lower air density. The number for 10,000 feet is 69 percent. You should consider that when thinking about what size engine to buy. Personally, I don't think an 80cc trials bike is a good choice for any adult-size human -- especially at higher elevations. Considering that the OP has a 2004 model bike, it's probably not in the cards to spend 3 to 4 times that for the wife's bike. A Dragonfly is not really a beginner's machine. A woman on the Facebook Dragonfly group was seeking advice after smashing her face riding one. She claimed to be a competent rider (just not at trials) but eventually gave up and sold the bike. This is a very real possibility with any bike, and you should allow your wife to progress at her own pace. If you don't mind going electric, an Oset 24.0R may be a good compromise. Honestly, the best course of action is an extended test ride on multiple bikes prior to purchase.

Dragonfly is 21Kg lighter and I can tell you that TRS electric start is high maintenance, it would work better if you kickstart her TRS bike when it is cold for her if you go that way, the electric works best on a warm engine.

I agree with feetupfun - if starting is the issue then go electric start. Another very obvious choice is the electric motion (or lemur's suggestion of dragonfly). The 300 gasser is a pain to start and she might well be able to start an easier bike like a TRS or Beta 250 My wife is 5'3" and has an EM Factor-e and loves it.

You can't find the manual here? https://www.sherco.com/en/download-documentation/manuals

Found the seals, got both the pullers and managed to take out both the flywheel and the cush drive on my test-engine (Explorer, partially seized). I'll do the same on the good engine as soon as possible.

Thank you!

A bike is what it is and then you change it to how you prefer it to be using different parts such as bars or foot rests etc and if you cannot get it to feel right no matter what you change then the only thing you can do is try another make of bike. IMO asking someone else is not helpful because everyone has different preferences.

Hello everyone. My first post on a forum. I'm pleased to find you here. I have recently purchased a Sherco 290 x-ride. The bike was 2017 m.y, stored, never used, no mileage on clock. So I got it assembled and completed. We didn't touch oils and fluids at first, just doublecheck, it was there. So, somehow we ended up with a cold seizure. It happened instantly. So, I bought a used cylinder and barrel from the UK, with decent condition, and now I'm on a second run to try to get it run. But, I'm already scared enough and don't want to do anything stupid again. I also found out there was no fluid in the hydraulic clutch. I have no specifications for: Jetting settings for keihin 28 mm carb, Data for fluids for hydraulic clutch and ext, Oil specs for gearbox, Engine tolerances to double check measurements (cylinder gap, ring gap, squish). Also a new cylinder came w/o cutouts on the barrel for small O rings and I'm going to use brass O rings on top of the head to prevent coolant leak, Don't know coolant specifications either, Going to try 50:1 mixture fuel to oil.

It's to prepare the cylinder surface for the new piston & rings plus it helps with lubrication They are given a hone before their first use with a diamond stones hone, most good mechanics have 1 in their assortment of tools .

A 125 would work well, they have enough bottom end to pull away without having to use the clutch excessively and as she progresses the 125 is more than capable when you start exploiting the power at the top of the RPM. 125’s enjoy been ridden hard, if she’s confident with throttle, clutch and brake timings a 125 is a lot of fun. I enjoy riding my lads Gas Gas 125, it’s highly manoeuvrable and a lot lighter than the Mont. It only lacks power on the really big stuff. The 200cc bikes do tend to ride more like a 250 than a 125, a little more flywheel and inertia keeps everything moving forward a little easier.

One way to judge piston ring seal without pulling much apart is to inspect the cylinder wall via the exhaust port or the plug hole, looking for dark areas (carbon). Carbon on the walls indicates piston ring blowby. Be aware that trials two strokes nowadays commonly suffer from having the rings stuck in their grooves by gum and carbon. This can happen quite quickly depending on how the bike is ridden, the type of premix oil and how well the bike is jetted.

TRS sells electric start 250 and 300 two strokes and they are very popular.

The ball and spring can be installed or removed with the engine assembled

A friend ride a Repsol, the first thing I notice when I test rode it was how short it was compared with my 2015 Sherco, when I checked the specs, I only found a 20mm difference in the wheelbase. I think that wheelbase is only one of many things that make the '' feeling '' we have on a bike Guy

I’d suggest something like the Beta EVO 80 Sr. Since your wife is petite and with little experience, the smaller frame and lighter bike would be easier for her to handle. It’s also much much much less expensive. You can always go bigger if she ends up liking it. A bigger bike could easily discourage her. The Beta EVO 80 will work great at higher elevations with the correct jetting.

Dragonfly 👍