tri moto 125 bored to a 175

[rustbucket]

I found a place to get pistons cheaper but they only have 175 pistons i was told a 125 could be made in to a 175 by swapping the jug what i want to know is can i punch my 125 out to a 175 and get the 175 piston has anyone done it?

[TimSr]

If you drilled out the entire sleeve, it still wouldnt bring up to 175cc.

[greenhuman]

The whole top end off a DT 175 Yamaha trail bike will bolt on. An IT 175 will also bolt on but there is a little bit of welding to be done to the transfer area.

[rustbucket]

so i guess i can't punch it out then, but will a jug from a trimoto 175 change out with mods (other than the carb) at almost 275 pounds this little 125 was kinda gutless

[kando]

Besides carb, jug, head, piston you need exhaust from 175 also. Do search for "125 175 motor swap yt" on this site or talk to theoldfox. As he has looked into this before. My opinion would be to just to buy an old 175 and fix it up. There is probably an old 175 around for cheap. I have my yt 125 running good and am looking for a 175 to fix up. I know you have two 125's, If your interested in selling some parts off the one I need silencer, choke cable, and starter rope casing as mine has a big chunk missing out the bottom. PLEASE PM IF INTERESTED.

[barriemouse]

dos any one no the mix off petrol and oil for a trimoto 175 as i have one but keep on going throw spark plugs

[MTS]

dos any one no the mix off petrol and oil for a trimoto 175 as i have one but keep on going throw spark plugs
Wrong and old thred but, 32:1 synthetic oil, and do a serch on jetting on here as you sound like yours is too rich.