cde050583 Posted August 18, 2021 Report Share Posted August 18, 2021 So finally got the Sherpa T 175 all back together and it struck up after a few kicks. The issue I have is when I acquired the bike it wasn't actually running and as such I have no idea whether the carb or the jets where making for optimum performance. I can obtain new jets of course but I don't have a bench mark to work from. The bike has good compression and has just been re-ringed and has new gaskets. It has an Amal Mk2 concentric 2625 carb on it at present and the symptoms are as follows. Lumpy running and not able to obtain full revs. Its very smoky and currently running using 95 ron and and Castrol semi syn oil at a ratio of 50:1. Its difficult to start especially when cold. Its fuel consumption seems to be excessive. Currently it has a Main Jet size 160, a Pilot Jet of 20 and a Needle Jet of 106. The needle position is at 2. Unfortunately my knowledge of 2 stroke carb tuning is limited as 4 stroke is more my thing. Any experience you guys my have or can suggest a different jetting that you know works well on your machine would be really appreciated. Quote Link to comment Share on other sites More sharing options...
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