bondy Posted October 19, 2018 Report Share Posted October 19, 2018 Hello I have a TY 80 dose any 1 know if there' s a After Market Carb? TA Quote Link to comment Share on other sites More sharing options...
brewtus Posted October 23, 2018 Report Share Posted October 23, 2018 Sorta... https://advrider.com/f/threads/the-compleat-yamaha-ty80-thread.574301/page-20 Quote Link to comment Share on other sites More sharing options...
bondy Posted October 25, 2018 Author Report Share Posted October 25, 2018 Hello brewtus what mikuni carb modle is that? and dose it work ok on the ty 80? cheers chris Quote Link to comment Share on other sites More sharing options...
brewtus Posted October 25, 2018 Report Share Posted October 25, 2018 The carb is a Mikuni VM18, got it from Viperizer racing. It came in a Sudco box, though - http://www.viperizerracing.com/Mikuni-VM18-Carburetor-p/su001.001.htm The manifolds we had made, all that is (somewhere) in the ADV thread I sent. There was a carb/manifold kit on Fleabay some years ago with VM20 carb and a custom manifold, but I haven't seen it in years, and a 20 is a bit big for a 72cc Trials bike. 1 Quote Link to comment Share on other sites More sharing options...
bondy Posted October 25, 2018 Author Report Share Posted October 25, 2018 thank you could you get the manifold still made? Quote Link to comment Share on other sites More sharing options...
brewtus Posted October 26, 2018 Report Share Posted October 26, 2018 We need another run of manifolds since the team has acquired what, something like 5 or 6 more bikes since that first run was made. I understand that the machinist that made them for us was considering selling and retiring, so I guess we'd better hustle. 1 Quote Link to comment Share on other sites More sharing options...
bondy Posted November 26, 2018 Author Report Share Posted November 26, 2018 hello brewtus will the mikuni Vm 18 fit on the original manifold? or do you need the After market 1 you had made? Quote Link to comment Share on other sites More sharing options...
brewtus Posted November 26, 2018 Report Share Posted November 26, 2018 No, not even close. I suppose you could make an adapter, but that just forces an 18mm carb to choke through a 16mm opening. Quote Link to comment Share on other sites More sharing options...
bondy Posted November 27, 2018 Author Report Share Posted November 27, 2018 There's is another mikuni carb vm20 comes with a Adaptor kit to fit the TY 80 Quote Link to comment Share on other sites More sharing options...
brewtus Posted November 28, 2018 Report Share Posted November 28, 2018 18 hours ago, bondy said: There's is another mikuni carb vm20 comes with a Adaptor kit to fit the TY 80 I saw a kit like that some years ago on Fleabay. Boxy-looking manifold and what was advertised as a 20mm Mikuni. Last I checked, it was still Out of Stock. If you find one, make sure that the carb is a gennie Mikuni, not a cheap Chinese copy. Those tend to be of dubious quality, leading to tuning frustrations. Taiwan Mikuni copies have a pretty good reputation, though. We always wondered how the 20mm would work on a TY80. That's a huge step up from the OE 16mm TK. Quote Link to comment Share on other sites More sharing options...
bondy Posted November 28, 2018 Author Report Share Posted November 28, 2018 yes they are out there I know where to buy if I wanted 1 its wired there is not a demand for a After market carb for the TY 80 Quote Link to comment Share on other sites More sharing options...
brewtus Posted November 29, 2018 Report Share Posted November 29, 2018 There very well may be a 16mm roundslide carb that will swap on, I never really researched it. We went with the 18mm Mikuni because we were already doing minor port and head mods at the time. The engines ran well with stock TKs (if we could find some that didn't have worn slides), but they woke up pretty well with the 18mm Mikunis. If you do decide to go with the 20mm kit, I would humbly suggest you put it on an engine with a fresh top-end to give it a chance to ingest what a 20mm carb can deliver. 1 Quote Link to comment Share on other sites More sharing options...
bondy Posted December 3, 2018 Author Report Share Posted December 3, 2018 Hi would there be any chance off getting 1 off the manifolds you have made for the Vm 18 Quote Link to comment Share on other sites More sharing options...
brewtus Posted December 3, 2018 Report Share Posted December 3, 2018 I haven't heard back yet to see if our machinist is still around, or in retirement (again) making Porsche parts. I'll let you know. 1 Quote Link to comment Share on other sites More sharing options...
bondy Posted December 3, 2018 Author Report Share Posted December 3, 2018 ok tank you.? Quote Link to comment Share on other sites More sharing options...
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