Suzuki2Strokes.com

Sundial Moto Sports

Suzuki Two-Stroke Message Board
Suzuki2Strokes.com
It is currently Sun Sep 23, 2018 7:17 am

All times are UTC - 6 hours




Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Sat May 27, 2017 11:41 am 
Offline
On the street
User avatar

Joined: Wed Nov 02, 2016 5:08 am
Posts: 18
Country: Canada
Bikes owned: 1968 T20
Hey,
I have a conundrum.
2 cylinders ... 2 pistons.

I know that the arrow point forward... but does one piston go into a specific cylinder?
When I took them out they were thick with carbon!!!

Now that they are cleaned up I notice that one has an "E" and one has an "F".
Does it matter? Other than they were in there for a long time?


Attachments:
IMG_20170527_142109.jpg
IMG_20170527_142109.jpg [ 137.92 KiB | Viewed 1469 times ]
IMG_20170527_142104.jpg
IMG_20170527_142104.jpg [ 120.41 KiB | Viewed 1469 times ]
IMG_20170527_142059.jpg
IMG_20170527_142059.jpg [ 130.64 KiB | Viewed 1469 times ]

_________________
"Some people know, and other's want to... Progress happens when you understand when to be who!"
Top
 Profile  
 
PostPosted: Sat Jul 22, 2017 1:10 pm 
Offline
Road race school

Joined: Wed Jul 10, 2013 12:04 pm
Posts: 800
Country: England, UK
Bikes owned: FZ50, GP100, RG125 Gamma, GT380, Bandit 1200S
Are they both the same size?
Do they both have the ring locating pins in the same place?
Do they have any holes in different places?
If the answers are, yes, yes and no, then they are interchangeable.
However, as a general rule it is advisable to always make a note of which bore they came from and put them back in the same bore.
This is so that the rings and pistons are matched to the bore they have been bedded into. If you are fitting new rings, it is less important.
Are you fitting new rings?
If so don't forget to hone the bores of the barrels.


Top
 Profile  
 
PostPosted: Sat Jul 22, 2017 5:17 pm 
Offline
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3232
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Per the parts diagram there is only one part # for each of the sizes (standard, oversize 0.5 & oversize 1.0). So there is no left & right — they are the same.

Paul Miller has a NOS set of 1st over pistons. One is labeled “0.5” & the other is labeled “E”.
http://www.ebay.com/itm/Suzuki-T20-TC250-nos-1st-over-piston-and-ring-set-1966-68-/381542745159

But another seller has a set of standard pistons labeled with “E”.
http://www.ebay.com/itm/Suzuki-T20-TC250-X-6-Piston-STD-Set-x2-NOS-GENUINE-JAPAN-12110-11600-/262397853199

So your “E” & “F” might indicate different sizes.
Accurately measure your pistons + cylinders, and you should be able to sleuth this out.

_________________
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE


Top
 Profile  
 
PostPosted: Sat Mar 31, 2018 3:58 pm 
Offline
On the street
User avatar

Joined: Wed Nov 02, 2016 5:08 am
Posts: 18
Country: Canada
Bikes owned: 1968 T20
Hmph...
Thanks jabcb...
They are in the cylinders now... So I either got lucky and put them back the same...
Of one is too tight.
I will do some accurate measure.

The cylinders were honed.

_________________
"Some people know, and other's want to... Progress happens when you understand when to be who!"


Top
 Profile  
 
PostPosted: Sat Mar 31, 2018 5:04 pm 
Offline
To the on ramp

Joined: Mon Mar 05, 2012 1:22 pm
Posts: 234
Location: Wales UK
Country: Wales
Bikes owned: RG250 GT750L GT750 DRAG seelyt500 tr500MK3
Check that the ring gaps are not travelling over the ports.


Top
 Profile  
 
PostPosted: Sat Jul 28, 2018 1:26 pm 
Offline
Around the block

Joined: Tue Jul 03, 2018 4:32 pm
Posts: 76
Country: Usa
Bikes owned: '74 GT250
Any time you reassemble with old pistons you should do a light hone and run the bike as a new break in. anyone can do a hone with a drill and a cheap 3 stone hone that can be bought for under 30 bucks


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group
Sundial Moto Sports forum © by Eric F. Kalamaja
Suzuki2Strokes.com