Search found 24 matches

by Gomey
Sat Aug 19, 2017 5:18 am
Forum: Technical help
Topic: TY250 Mono pistons
Replies: 6
Views: 15295

Re: TY250 Mono pistons

I just cleaned up the ports by smoothing them out. Nothing too drastic.
- from memory the top/crown of the piston is shaped allowing better gas flow to ports.
by Gomey
Thu Aug 17, 2017 1:49 pm
Forum: Technical help
Topic: TY250 Mono pistons
Replies: 6
Views: 15295

Re: TY250 Mono pistons

Hi,
I have done the piston mod 3 or 4 times. From memory it is only the piston crown that is different. It makes a huge difference. Carb had to be re-jetted to suit along with the airbox lid to allow it to breath better.
by Gomey
Fri Apr 21, 2017 3:16 am
Forum: Twinshock & Classic Trials
Topic: Interchangeable parts for TY175
Replies: 5
Views: 18497

Re: Interchangeable parts for TY175

I have 2 new old stock fork tubes for a ty175c if anyone is interested?
by Gomey
Thu Jan 26, 2017 6:08 pm
Forum: Technical help
Topic: Chain Lubes
Replies: 6
Views: 15567

Re: Chain Lubes


I have used Bel-Ray Super Clean for years. Goes on quite thin then dries to a white waxy substance. Doesn't seem to fling off at all. Not cheap but is the cleanest I have used.

Mark G
by Gomey
Tue Sep 20, 2016 3:14 am
Forum: Twinshock & Classic Trials
Topic: Restoring Magnesium Hubs.
Replies: 5
Views: 17691

Re: Restoring Magnesium Hubs.

I would use vapour blasting as magnesium is very soft. Make sure to check on if an etch primer or some kind of chemical treatment is needed for magnesium to help the paint stick and to stop it corroding under the paint.
by Gomey
Sat Sep 17, 2016 4:54 pm
Forum: Technical help
Topic: Carby
Replies: 4
Views: 24487

Re: Carby

That looks correct. There are vents.
by Gomey
Fri Sep 02, 2016 2:57 am
Forum: Twinshock & Classic Trials
Topic: TY350 piston kit???
Replies: 5
Views: 17018

Re: TY350 piston kit???

Hi,
Pretty sure they are no longer available. You could try http://www.tytrials.co.uk/
I just read last night there is a company over here in States that is coating old Pistons to the spec of the cylinder.
by Gomey
Sun Apr 10, 2016 7:51 pm
Forum: Twinshock & Classic Trials
Topic: Show us a picture of your Twinshock
Replies: 390
Views: 196788

Re: Show us a picture of your Twinshock

A couple of my twin shocks I brought in from the States. 199B Sherpa and '83 SWM Jumbo. Both great bikes to ride. The power of the Jumbo is outstanding :-)
Both bikes are unfortunately for sale.
by Gomey
Sun Apr 10, 2016 7:42 pm
Forum: Twinshock & Classic Trials
Topic: Basket Cases
Replies: 2335
Views: 1003142

Re: Basket Cases

This is a pic of my basket case over in the States awaiting a rebuild. It's a '83 SWM Jumbo albeit in many pieces....
I have a whole Jumbo over here in OZ to play with so no rush.
by Gomey
Mon Feb 29, 2016 6:48 pm
Forum: Technical help
Topic: TY175 Gear locating clip -
Replies: 3
Views: 25355

Re: TY175 Gear locating clip -

This picture should confirm position.

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