what do size is the front sprocket?
Guy
Search found 197 matches
- Wed Mar 18, 2026 10:32 pm
- Forum: Twinshock & Classic Trials
- Topic: Basket Cases
- Replies: 3237
- Views: 1775330
- Mon Nov 10, 2025 1:00 am
- Forum: Twinshock & Classic Trials
- Topic: Yamaha 74 TY250a gearbox oil capacity/oil brand advice
- Replies: 3
- Views: 2430
Re: Yamaha 74 TY250a gearbox oil capacity/oil brand advice
I use ATF ( Ford ) in mine. When I change the oil, I drain and let the bike on a stand overnight than fill with fresh ATF run for a couple of hours than repeat The oil change. Maybe it's overkill but I had good result.
Guy
Guy
- Mon Oct 03, 2022 10:17 pm
- Forum: Twinshock & Classic Trials
- Topic: Basket Cases
- Replies: 3237
- Views: 1775330
Re: Basket Cases
The '' nicer '' is a bike to ride the more you want to ride it. Good job David.
Guy
Guy
- Wed Aug 17, 2022 9:22 pm
- Forum: Twinshock & Classic Trials
- Topic: TY B ( 493 ) crankshaft
- Replies: 11
- Views: 15720
Re: TY B ( 493 ) crankshaft
The final decision was made by the '' commity of rebuld '': the crank was sent to a specialise shop to be rebuld. they will check if the job is doable and if so, they will overall it. It's not cheap, but they are very reliable place.
- Fri Aug 12, 2022 9:31 pm
- Forum: Twinshock & Classic Trials
- Topic: TY B ( 493 ) crankshaft
- Replies: 11
- Views: 15720
Re: TY B ( 493 ) crankshaft
JC1 as the DT piston did not have the bottom of the skirt '' besseld '' as the TY ones, you certainly are right about the early DT but I was thinking about a late ( 1979 here in Canada ) one. Since the crank in question is about 500 miles from our place and not being sure that the seller will give ...
- Sat Aug 06, 2022 10:05 pm
- Forum: Twinshock & Classic Trials
- Topic: TY B ( 493 ) crankshaft
- Replies: 11
- Views: 15720
Re: TY B ( 493 ) crankshaft
I have a couple of A model crankshaft here so we will have a look at the drive side half to see if it is still usable. The bike aparently was droped in a streem and left to rested for a long time, it took a lot of persuation to finaly '' unseize '' and take it appart.
Thank you for the offer to sell ...
Thank you for the offer to sell ...
- Fri Aug 05, 2022 9:34 pm
- Forum: Twinshock & Classic Trials
- Topic: TY B ( 493 ) crankshaft
- Replies: 11
- Views: 15720
Re: TY B ( 493 ) crankshaft
David, the DT 400 B is listed with a 70mm stroke, if I want to replace the crank in a TY 250 B and keep it standard, what choise do I have ?
We have looked all over the place to find a replcement for that crank, but can't find anyting.
Guy
We have looked all over the place to find a replcement for that crank, but can't find anyting.
Guy
- Fri Aug 05, 2022 9:21 am
- Forum: Twinshock & Classic Trials
- Topic: TY B ( 493 ) crankshaft
- Replies: 11
- Views: 15720
TY B ( 493 ) crankshaft
Does anybody kbows if a DT crankshaft fit a TY 250 model 493 B model here in Canada
Guy
Guy
- Sun Feb 27, 2022 11:50 pm
- Forum: Twinshock & Classic Trials
- Topic: Basket Cases
- Replies: 3237
- Views: 1775330
Re: Basket Cases
Super nice
Guy
Guy
- Fri Feb 25, 2022 11:27 pm
- Forum: Twinshock & Classic Trials
- Topic: Basket Cases
- Replies: 3237
- Views: 1775330
Re: Basket Cases
Are yu sure about the MT43 as they don't have '' square '' center knob
Guy
Guy