Author Topic: 1980 Suzuki PE175  (Read 8509 times)

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Offline Mike52

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Re: 1980 Suzuki PE175
« Reply #15 on: June 25, 2010, 07:27:51 PM »
Pretty . Seems a pity to get it dirty. :)
85/400WR,86/240WR,72/DKW125,Pe250c,TC90,TS100,XT250,86/SRX250,XR400r
Friend  struggling up a hill on a old bike at MTMee .http://www.youtube.com/watch?v=cjj6E2MP9xU.

Offline suzuki447

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Re: 1980 Suzuki PE175
« Reply #16 on: July 21, 2010, 07:52:19 PM »
hi mate nice resto i made mine into dg replica like in back of the manual,except mines 1980,dg tank decals ,dg head,just picked up nos exhaust from old bike shop ,try to get a photo up ,don
bikes in shed.74tm125,76,78,82rm125s,...82,83rm250s.80canam qualifier.80,83yz125s.86yz490.80it125.76it400.80pe175and250.79rm50.76xr75.2xpuch50 magnums.jawa speedway.72honcho 90.84xr200.87xr100.phew thats all.

DT_Mania

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Re: 1980 Suzuki PE175
« Reply #17 on: July 23, 2010, 03:36:35 AM »
Tx S447. Please post some photos soonest. You don't have a spare DG head by any chance? Those are almighty scarce and I can't find one for love nor money...

Offline DR500

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Re: 1980 Suzuki PE175
« Reply #18 on: July 25, 2010, 11:09:14 AM »
Everybody seems to notice the black rims first! They are the original rims cleaned up and send for powder coating. I also used a STD TS185 piston and rings when I did the engine over. So running now at 183cc.


When you use TS 185 piston,is the sleeve thick enough?

Offline LWC82PE

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Re: 1980 Suzuki PE175
« Reply #19 on: July 25, 2010, 01:03:08 PM »
Quote
When you use TS 185 piston,is the sleeve thick enough?

Yes

PE standard- 62mm
PE +2mm wiseco oversize - 64mm

TS standard - 64mm
TS +2mm wiseco oversize = 66mm


PE standard capacity - 172 cc
PE +2mm wiseco oversize - 183cc

There would metal enough in the liner to at least go to 64.5 or 65mm using the TS 185 +0.50 and +1.0mm pistons
This would make the PE 175

186cc with 64.5mm TS piston
189cc with 65mm TS piston

going from 64mm to 65mm is only one extra mm remember, which is only .5mm off each side of the bore so you'd at least get that in and maybe can even go bigger. Just measure with your calipers ;)
« Last Edit: July 25, 2010, 01:04:48 PM by LWC82PE »
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

DT_Mania

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Re: 1980 Suzuki PE175
« Reply #20 on: July 26, 2010, 12:52:10 AM »
Well explained LWC82PE. There is a lot of metal on the PE175 sleeve. And keeping the measurements above in mind you should be able to still go 2 sizes up from the STD TS185 piston if the need arises which should guarantee you still years of good use from the motor before you have to start thinking about re-sleeving.
« Last Edit: July 26, 2010, 12:54:56 AM by DT_Mania »

Offline DR500

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Re: 1980 Suzuki PE175
« Reply #21 on: July 26, 2010, 08:04:35 AM »
Thanks you have made my day.Rebuilding a Pe 175 1980 and found old piston at 2mm oversize and thinking that would be the last piston before re-sleeving. :) Where's the best place for gaskets and seals.I am Northside Brisbane.Cheers

DT_Mania

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Re: 1980 Suzuki PE175
« Reply #22 on: July 26, 2010, 09:33:15 PM »
Thanks you have made my day.Rebuilding a Pe 175 1980 and found old piston at 2mm oversize and thinking that would be the last piston before re-sleeving. :) Where's the best place for gaskets and seals.I am Northside Brisbane.Cheers

Somebody else will have to help you with that info - I am in Pretoria, South Africa!!!

P.S. No jokes about our current state of rugby  >:(

Offline Glen08

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Re: 1980 Suzuki PE175
« Reply #23 on: December 20, 2017, 10:31:00 AM »
Gday guys...
Late reply I know... Currently building a pe175x and I'm wondering is there any mods that need performing on the ts piston or is it a straight up fit for the pe..??
Cheers.

Offline James P

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Re: 1980 Suzuki PE175
« Reply #24 on: December 27, 2017, 11:04:03 PM »
Gday guys...
Late reply I know... Currently building a pe175x and I'm wondering is there any mods that need performing on the ts piston or is it a straight up fit for the pe..??
Cheers.

Glen, I have an idea that the piston dome profile is different between the PE and TS pistons. I think the TS piston dome has a smaller radius, so has more of a pronounced dome than the PE piston (the PE piston dome looks flatter). However, this may only be the case for the early (1978-79) PE175 piston with offset transfer cutaways - I haven't got a later one for comparison.
Even if true, it is usually the case that production squish bands are cast to be a little steeper than the piston dome, in which case the TS piston dome could be a perfect match for the PE squish band... :-\ .

However, there is still the possibility that you would have to machine the squish band on the PE head for a) the bigger bore and b) the correct profile. The taller dome and larger bore may also give you a greater geometric compression ratio than you need or want. Squish clearance would also need to be checked.
It may be worth investigating whether a TS185 head (from any of the various versions) will fit the PE cylinder, but (if so) it also may not give the compression ratio or squish clearance you want. Whatever the case, I'm pretty sure the ring pegs on the latest TS185ER piston are in the same positions as those on the early PE175 piston (not sure about later type).

Please let us know if you discover anything more!

Regards,
James

Offline Glen08

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Re: 1980 Suzuki PE175
« Reply #25 on: December 28, 2017, 10:22:17 AM »
Thanks for that info mate...I was thinking the squish would need adjustment but the dome wasn't something i considered...It's been a good Xmas because i picked up a ratty 175x with a strong motor & I'm using it on this build for now..but I'm definitely interested in getting to the bottom of the ts piston mod...thanks again.

Offline LWC82PE

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Re: 1980 Suzuki PE175
« Reply #26 on: December 28, 2017, 05:27:21 PM »
Theres a magazine article where the TS piston mod is mentioned. I dont recall any significant mods that need to be done. Its pretty simple just get a TS piston, measure it compared to PE piston, trim skirt or what ever needs doing and away you go. The article should be in the  'magazines' section on Yahoo forum, actually no it will be on 'Lukes Onedrive' but you can get to that via the FAQ section on Yahoo PE forum. Yes TS head will fit but you wont need it.
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Offline Glen08

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Re: 1980 Suzuki PE175
« Reply #27 on: December 29, 2017, 09:37:31 AM »
Cheers...I'll dig into one drive ..
Much appreciated and happy New year guys.

Offline LWC82PE

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Re: 1980 Suzuki PE175
« Reply #28 on: December 29, 2017, 10:26:09 AM »
i got a feeling its in one of the full floater modification articles in  USA 'Dirt Bike'
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Offline Glen08

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Re: 1980 Suzuki PE175
« Reply #29 on: December 29, 2017, 11:23:53 AM »
Ah ok...been looking in T&X magazine section of one drive,,,I'll keep looking but the ashes has me occupied lol...