motovita

Thanks guys, you're the best! I passed on the 92s.

I have a 199A and can buy some 92s for parts. Will the top ends interchange and are they significantly different? What about forks, clutch and gearbox parts? I know you guys know. Thanks

[quote name='Woody' The first thing to do is throw away the triangular silencer. They are fine for appearances on museum pieces but strangle the motor if you are using the bike. If you're not bothered about it looking original put it on ebay. Most people threw them away when the bikes were new. Then take it back on the road and find somewhere to run it near flat out for a while to see if it will burn of any gooey residue that may be in the silencer. That sometimes works wonders for a 2 stroke motor that has got choked up. What do you recommend as a replacement for the rear box on a 199A?

I'm interested, have you got a link for them?

http://www.trialscentral.com/forums/topic/36975-4rt-gearing/

Good point. The other thing to consider is, thats 12.85 million couch potatos.

Your SWM probably won't do this, but a piston port 2 stroke will frequently run backwards with timing retarded only a few degrees. It can be great fun!

9-42 with narrow X ring chain is the best for me (old, mid level rider).

I test rode one last week. The owner recommended just taking the slack out of the cable. It started easily for me but I only rode it long enough to realize that it's the bike I would buy if a new bike were in the cards for me just now.

The wrench is mightier than the computer .

You can purchase rearset pegs here in the U.S. that may help, if you used standard trials pattern pegs. https://secure.rypusa.com/prodpage.cfm?cat_selected=116&product_selected=142&startrow=9

I've used Maxima 75wt synthetic gear oil in my 06 since it's first oil change, works great. The clutch is original, the master cylinder has been changed to the large body as used on the 315.

Do you mean air filter? Where is the o2 sensor located?

Yeah, lumping all 4 strokes together makes as much sense as considering one Trials tire as good as the next, since they all look the same.

Why?

Umm, wasn't it the F.I.M. that mandated that all trials bikes in the world rounds be 4 stroke by 2006, and then backed away from their own rule after the Trials manufacturers spent big bucks developing said 4 strokes?

I believe the EFI system came from a scooter. Which as far as two wheels go, is probably where the real money is.

Honda's future rests on a two stroke dirt bike

Lower gearing and/or an O ring chain might make the bike suit you better.

I would contact Sprocket Specialists in your state of CA. They can probably make one for you.

After reading this thread I went and looked at my 199A. It has the aluminum bracket. I can't get too worried about it since it's lasted over 30 years, but I'll look for a steel one since I'd like to paint the frame anway. Is it a Bultaco part? From a different model?

1- Because I think it will let the tire spread out and conform better to the terrain. 2- Because I have one.

I'd like to replace the 1.85 rear rim on my 199A with a 2.15. There is very little clearance on either side. Does anyone have any experience with this?

Normally the adition of alcohol requires richer jetting, as you are essentially running watered down gas. There may be other factors at play though.