guy53

From my experience even if you grease regularely the swingharm it still '' freese '' , I think the answer is to take the swingharm apart a couple time a year clean regrease ..... Guy

Did you buy a 434 or a newer model ? I always take the heavy fiberglass '' pan '' and replace it with a minimal seat. you should be able to find a lot of exemple on the net. Guy

Maybe you would get more on that in the specific Scorpa forum

Could the cable be the colprit

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

Looking at the 2026 ST-E, I'm not sure about the idea of electric starter only.

A new Michelin Light arrived this afternoon, too late for this year but I'll be ready for the spring

Is there any news on the 2026 models ?

The last rear tire I bought for my 2015 Sherco was a Dunlop 803 GP rear and I still run the original Michelin front, it's time to refresh them. Here is a list of what's avalable in the area : Rear Dunlop K950, Geomax TL01 and D803GP - Michelin Comp - IRC TR-11. Front Michelin Light and Heidenau K67 ( never heard of that ). What is your experience

I also ride mountain bike ( EMTB to be honest ) and when they became avalable I bought a MIPS rated helmet, mabe that's why I'm '' suffering '' so much with my trials helmet to the point that I'm looking at a new one with more ventilation.

I agree with you Konrad, I need to try it on before buying, the problem I have here in Quebec, is there is not a lot off trials gear retailer and they are quite far apart, so any info will probably save me a lot of traveling.

I know the subject of '' vent '' on helmet as been often ask, but with new model arriving every year, what is in your opinion the one today

There might be a problem with the exhaust being partialy blocked

What is a good alternative to a TY 175 fork, I know many replace them with TY 250 fork but since there so few of them avalable maybe there is an alternative that does not require me to sell my home to buy Guy

I modified the frame of an A model to Majesty spec a few years back. I think that the first thing to do is find a straight frame than build a jig. I'm sure you will find very good advise on this site.

It sure look like an original 434 head with a modification made in an unconventional way. if it work, use it. The original plug wire must be short. Guy

If I remember correctly, Yamaha made a version of the TY 434 to be use on farm i.e. more trail oriented. Does it have the foward footrest ? Guy

Are you in North America?

I've use fiberglass and plastic gard on a dirt track bike without any problem

nice bike

I'm surprise that no one ask: Have you tried any of them? Is there one that you feel better ridding? Guy

I forgot, the chain of a trials bike doesn't very hot when riding, I think that it's the reason why the ATF work for me. Guy

For half of a century, I've used ATF to lube the chain. After a ride I wash the bike than I generously lube with ATF, I wipe of the chain before leaving for the next ride. I found the lightness of the oil penetrate the rollers and push the mud out. Only thing, don't forget to put something under the bike. Guy

I do agree with you Jon v8 that the Mikuni that come '' stock '' on TY are the best and I would never swap one for another make unless the original was worn out and I would not be able to find another original TY Mikuni, but the Mikuni VM are not the ideal replacement for a TY 250 in my opinion. Guy

A few years back, I replace a TK carb on a model 434 by a VM32, I never could make it running well. I'm not saying that I'm a Mikuni engeneer but I know my way around them, if you don't find a rebuld kit, you should consider OKO. The comment are very good. Guy