rodmac Posted December 26, 2020 Report Share Posted December 26, 2020 Hi I have been given a 150 kit for my wee 125 four stroke. Are there any instructions or videos to show how it's done. The kit comprises off barrel and piston, new Cam and all gaskets ans seals and new jets for the carb. My bike is a 2015. Any info would be appreciated. Cheers Quote Link to comment Share on other sites More sharing options...
Creepytheclutchmaster Posted December 26, 2020 Report Share Posted December 26, 2020 Hi if it's the yamaha tyz 125 four-stroke engine you have. then it's pretty much the same engine as the yamaha ybr125 Air cooled engine. There is loads of videos on YouTube of people fitting 150 kits to the Ybr125 engines. Quote Link to comment Share on other sites More sharing options...
Waynetod Posted March 6, 2021 Report Share Posted March 6, 2021 Did you fit the 150 kit rodmac? I'm curious as to how much better it is. I have a 2016 125 model that's only done 255kms, so it's not even run in yet. Quote Link to comment Share on other sites More sharing options...
stpauls Posted November 16, 2021 Report Share Posted November 16, 2021 (edited) You have a Yamaha TTR clone, Jianshe engine. (Chinese, part owned by Yamaha). Videos on Youtube for fitting a big bore kit. Replace the 130 main jet in the Mikuni carb, with a 150. Edited September 19, 2022 by stpauls Quote Link to comment Share on other sites More sharing options...
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