jeffk Posted March 19, 2019 Report Share Posted March 19, 2019 Anyone know the factory position of the cylinder rubber pieces on a 1974 ty 250? I should have taken a photo 3 years ago but did not. I've seen at least 3 different photos. Not a big deal but as a restoration I would like to make it factory correct. thanks. Quote Link to comment Share on other sites More sharing options...
feetupfun Posted March 21, 2019 Report Share Posted March 21, 2019 I've got an unmolested early 434 model motor (never even had the cylinder head off) that I can take photos of, but I suspect that there are actually two different cylinders that came on the first model TY250 so that might be what is causing confusion. One type has a circular un-finned section above the exhaust port. Is that the type of cylinder you have? Quote Link to comment Share on other sites More sharing options...
jeffk Posted March 22, 2019 Author Report Share Posted March 22, 2019 Hi, thanks for the reply. no mine is what I would guess is the later version. Quote Link to comment Share on other sites More sharing options...
feetupfun Posted March 23, 2019 Report Share Posted March 23, 2019 Here are photos showing my early 434 cylinder 1 Quote Link to comment Share on other sites More sharing options...
feetupfun Posted March 23, 2019 Report Share Posted March 23, 2019 4 hours ago, jeffk said: Hi, thanks for the reply. no mine is what I would guess is the later version. Jeff what number is cast into the port side transfer port area Quote Link to comment Share on other sites More sharing options...
jeffk Posted March 23, 2019 Author Report Share Posted March 23, 2019 Thanks for taking the time to take the photos. I appreciate it! I can now see where they go. Jeff Quote Link to comment Share on other sites More sharing options...
feetupfun Posted March 23, 2019 Report Share Posted March 23, 2019 3 minutes ago, jeffk said: Thanks for taking the time to take the photos. I appreciate it! I can now see where they go. Jeff You are welcome. I took a series of photos of three different cylinder types many years ago when I was helping someone work out which model cylinder they had on their TY250 Quote Link to comment Share on other sites More sharing options...
Junglejeff Posted April 18, 2019 Report Share Posted April 18, 2019 And here is one of head before I removed them for clean up. Quote Link to comment Share on other sites More sharing options...
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