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Makotosun

barrel swap

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Replied by MarkT on topic barrel swap

Nice job! 

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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
12 Mar 2022 12:23 #21

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Replied by RT325 on topic barrel swap

Wow, you're 'the man'. Love this sort of mix n match.
12 Mar 2022 15:57 #22

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  • elliottles1
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Replied by elliottles1 on topic barrel swap

folks,
latest on this project is this. rode the bike after the build and all is good, very happy with the potential of this barrel swap, however i am not happy with the bore size (+2mm now) as there is no supply of decent pistons now available, just a cheap chinese one which insists on rattling like a tin of rocks. So, the cylinder is off to PJME motorcycle engineers in the uk for a re-sleeve. they make and port their own liners so i am going to have them include a bridged inlet port and i will use an IT250 yamaha piston of standard size which i have and has the full skirt with windows, should shut the engine up and increase piston life.
i will report back when there is more info, and hopefully eventually a vid of it screaming down the road.

cheers
les.
 
The following user(s) Liked this Post: MarkT, Ht1kid, Sneezles61
26 Sep 2022 10:58 #23

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Replied by elliottles1 on topic barrel swap

me again,

barrel is back from being re-lined and is superb, with a bridged inlet port, new gen. yamaha it250 piston, bored to 1.5 thou.
should be quiet and long lived with the port bridge and full skirt piston. however it seems i cannot attach a pic.!!
i will build it back up at the weekend.

cheers
les.
09 Jan 2023 11:40 #24

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Replied by Paul@PJME on topic barrel swap

Don't get on here much, registered as i am going to be restoring my 1972 DT2-250 

It was me who re-sleeved your cylinder, i did look at the base holes and wondered what it was going on. 

Anyway glad you are happy with the job 
09 Jan 2023 13:42 #25

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Replied by elliottles1 on topic barrel swap

Paul,

Ha! small world!
anyways, thanks for the great work. im never happy unless im doing something that "shouldnt be done". i will enjoy 38hp instead of 17.!

thanks again and please post something of the DT2.

les.

 
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09 Jan 2023 23:21 #26

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Replied by Paul@PJME on topic barrel swap

Had a bit of false start on the DT, just going over it before tear down, got a new seat pan for it but for some reason it doesn’t fit so its gone back to a very very long Q of other projects.
16 Jan 2023 13:53 #27

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Replied by Pete-RT1 on topic barrel swap

Great project, very impressive.
+1 on PJME doing great work and in my view for a fair price.
They rebuilt my CT3 crank and reground the crank seal area to take a smaller seal as the surface was corroded.
I know Shyted uses them too.
Yamaha CT1-B
Yamaha CT1-C
Yamaha AT1-C
Yamaha CT3
1978 Yamaha DT175MX
2020 Honda CB500X
The following user(s) Liked this Post: Ht1kid, Paul@PJME
17 Jan 2023 11:13 #28

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