Author Topic: dt or it175 cylinder sleeves?  (Read 982 times)

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Offline twinrock

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dt or it175 cylinder sleeves?
« on: October 31, 2017, 09:16:11 PM »
Hi does anyone know if cylinder sleeves are available for dt or it175 thanks

Offline crossedup2

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Re: dt or it175 cylinder sleeves?
« Reply #1 on: November 01, 2017, 10:34:01 AM »
Hi Twinrock

I contacted L.A.Sleeve about 3 months ago looking for similar parts. All prices in US.

https://www.lasleeve.com/tech/catalogs
 
1977 YZ400 sleeve - YA765 is $275.00.
IT175 (D, E, F) -Cost on the YA649 is $325.00.
1974 -76 YZ125 - YA333 is $250.00.
Postage is approximately $69 to $89.

Thank you, 
Dave @ L.A.SLEEVE
562-945-7578 ext.232
dave@lasleeve.com
 
Plus the fitting of the sleeve.

Good luck and Rgds
Peter B
Anything Yamaha. AT1, CT1 (X3), RT1, YZ125X,  YZ250E, YZ400D, IT175E, IT250H, IT490K . Always looking for Pre 78 Yamaha stuff....

Offline matcho mick

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Re: dt or it175 cylinder sleeves?
« Reply #2 on: November 01, 2017, 11:16:44 AM »
Hi does anyone know if cylinder sleeves are available for dt or it175 thanks
why not just get another (good) barrell?,sleeving a DT barrell seems extreme dollarwise??,what model??, :P
work,the curse of the racing class!!
if a hammer dosn't fix it,you have a electrical problem!!

Offline 80-85 husky

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Re: dt or it175 cylinder sleeves?
« Reply #3 on: November 01, 2017, 07:50:02 PM »
you would think there would be a few about, 175's are thick on the ground....

Offline twinrock

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Re: dt or it175 cylinder sleeves?
« Reply #4 on: November 02, 2017, 09:33:34 AM »
Thanks guys..i was intending on using the sleeve in a completely different motor..which shares the same stroke but smaller bore prices are to expensive for this experiment..i wonder is the cylinder can be cut away from the sleeve ..could get acheap dt cylinder to try..

Offline sleepy

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Re: dt or it175 cylinder sleeves?
« Reply #5 on: November 02, 2017, 10:23:54 AM »
You could machine the outside of the barrel away if you are careful, the outside of the cast iron is a cast finish with lumps and bump on it. The cost to do it wouldn't be cheap and it is really hard to get a good finish that is round on the outside with the port holes already there. Cylindrical grinding is about the only way to get a good finish on the outside of a 2 stroke sleeve with holes in it.
If your handy with drills, files and die grinders you can buy a flanged sleeve and cut your own ports. I've used old GS1000 suzuki sleeves to do big bore DT style barrels but to cut the holes takes a couple of hours.

Offline OverTheHill

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Re: dt or it175 cylinder sleeves?
« Reply #6 on: November 02, 2017, 12:50:11 PM »
Hey, good to know people are still right into adapting things. Curious to know more?

Offline twinrock

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Re: dt or it175 cylinder sleeves?
« Reply #7 on: November 02, 2017, 10:14:51 PM »
Ahh well thats a good idea use a 4stroke sleeve and cut the ports..

Offline sleepy

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Re: dt or it175 cylinder sleeves?
« Reply #8 on: November 03, 2017, 12:09:45 AM »
Ahh well thats a good idea use a 4stroke sleeve and cut the ports..
Let me know what bore size you are looking for as I may have something laying around or atleast give you an idea as to what to look for. Most of the 4 stroke stuff will be reduced diameter at the bottom but it is quite easy to machine them parallel before you cut any port.

Offline Tomas

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Re: dt or it175 cylinder sleeves?
« Reply #9 on: November 03, 2017, 07:32:16 PM »
round cast iron is readily available and cheap. would not be easier to buy a piece of cast iron and machine exactly what you need?

Offline twinrock

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Re: dt or it175 cylinder sleeves?
« Reply #10 on: November 04, 2017, 08:36:11 AM »
Yeah thats another good idea.
The motor/bike in question is a tzr250,dont get me wrong its a fantastic and fast lil motor.. i have always thought its a shame they never made a 350cc like the rd and rz before it.. i saw a guy fit dt200 cylinders to one..but it was alot of work and $$ so after a few measurements and comparisons it seems that a dt175 is the same stroke but 10mm bigger bore the bace to deck height is also the same and the pistons also match as do dt200r. I would do the mod to a set of max bore tzr cylinders ...it could be done relatively cheaply i think although alot of time,..to what result or success over the standard 250cc motor who knows. Its bottom end torque that i would be chasing..

Offline sleepy

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Re: dt or it175 cylinder sleeves?
« Reply #11 on: November 04, 2017, 12:34:51 PM »
round cast iron is readily available and cheap. would not be easier to buy a piece of cast iron and machine exactly what you need?

Something you have obviously never done before. Correct cast iron even in hollow bar is not that cheap and the maching can take some time.

Offline sleepy

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Re: dt or it175 cylinder sleeves?
« Reply #12 on: November 04, 2017, 12:44:54 PM »
Yeah thats another good idea.
The motor/bike in question is a tzr250,dont get me wrong its a fantastic and fast lil motor.. i have always thought its a shame they never made a 350cc like the rd and rz before it.. i saw a guy fit dt200 cylinders to one..but it was alot of work and $$ so after a few measurements and comparisons it seems that a dt175 is the same stroke but 10mm bigger bore the bace to deck height is also the same and the pistons also match as do dt200r. I would do the mod to a set of max bore tzr cylinders ...it could be done relatively cheaply i think although alot of time,..to what result or success over the standard 250cc motor who knows. Its bottom end torque that i would be chasing..

Had a bit of a look and GS750 Suzuki has a 65mm bore the outside of the sleeve would end up 72mm after maching and the length is 113mm with a nice flange on top. An IT175 barrel here for some work is 114mm deep so 1 mm shorter would not be a problem. Using a used GS750 sleeve would be way cheaper and quicker than starting with a lump of cast. I'll dig around and see how many I can find.

Offline fred99999au

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Re: dt or it175 cylinder sleeves?
« Reply #13 on: November 04, 2017, 01:11:55 PM »
I saw an article some time ago on a US site about a bloke who makes his own sleeves, and the material used is not straight cast iron, there are a number of other elements in the mix.

I suspect the qualities of sewage pipe and engine cylinders are not the same.

Offline Tomas

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Re: dt or it175 cylinder sleeves?
« Reply #14 on: November 04, 2017, 01:39:24 PM »
round cast iron is readily available and cheap. would not be easier to buy a piece of cast iron and machine exactly what you need?

Something you have obviously never done before. Correct cast iron even in hollow bar is not that cheap and the maching can take some time.
Last two pieces i got cost me 29Euros. 70mm OD x150mm long. So thats what $45-50 dollars. And yes i have done more than a few cylinders so far. Have you? Obviously you talking about something you have not done ever. Most of cast iron is suitable for cylinder liners. Most of cast/grey iron is around 200 HB. Read here http://forums.everything2stroke.com/threads/49513-How-It-s-Done-Projects-around-the-Shop/page8   Yes it is probably hard to find a shop that would turn a cylinder liner for you for a reasonable price here in Ozi.