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Author Topic: Unknown Art pistons  (Read 4008 times)

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Offline Sukin

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Unknown Art pistons
« on: July 06, 2011, 02:13:41 PM »
Hi I found in my cb 250 racer  this type of piston and  couldn´t identificate it. Piston dimensions: bore 64 mm, piston pin diameter 15 mm. Pistons looks like CB 350 pistons, but have reduced ring on the top. My second idea is that is overbore CB 77 pistons. Could somebody identificate it and where i could buy it? Thanks for answer. 
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Offline Bill/BentON Racing

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Re: Unknown Art pistons
« Reply #1 on: July 06, 2011, 07:35:17 PM »
Any markings or #'s anywhere? Bill
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Offline lordmoonpie

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Re: Unknown Art pistons
« Reply #2 on: July 06, 2011, 11:44:46 PM »
Is it a Kawasaki piston? A Lot of racers over here use kawasaki pistons in their 250 and 350 race bikes. I wouldn't have clue what the model would be if it was a kawasaki!
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Offline Sukin

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Re: Unknown Art pistons
« Reply #3 on: July 07, 2011, 01:51:50 AM »
There are no marks, only what is on second picture.
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Offline mick7504

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Re: Unknown Art pistons
« Reply #4 on: July 07, 2011, 04:38:08 AM »
I have an old set of Honda CB360T pistons that are marked ART.
These are 67mm with 16mm pins.
From what I understand, ART made pistons for Honda back in the day.

Here is one on ebay that I just found (for a CB360) and is marked ART.
http://www.ebay.com.au/itm/Honda-Piston-New-CB360-Twin-1-0mm-OS-13105-369-000-/180664751693?pt=AU_Motorcycle_Parts_Accessories&hash=item2a1075564d

Here is another one for a CB350 which looks very similar.

http://i409.photobucket.com/albums/pp178/actioncyclewarehouse/motorcycle/pistons/P1050131.jpg

http://www.ebay.com.au/itm/PISTON-honda-CB350-CL350-SL350-13105-312-010-NOS-/390119998705?pt=Motorcycles_Parts_Accessories&hash=item5ad4f6c4f1
« Last Edit: July 07, 2011, 04:48:45 AM by mick7504 »
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Offline mlinder

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Re: Unknown Art pistons
« Reply #5 on: July 07, 2011, 06:38:48 AM »
Yeah, those are neither 360 or 350 pistons. They aren't kz650 pistons either. I can't tell what they are.
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Offline turboguzzi

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Re: Unknown Art pistons
« Reply #6 on: July 07, 2011, 10:10:02 AM »
kawasaki KZ700 are 64mm with 15mm pin....... :)

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Offline mlinder

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Re: Unknown Art pistons
« Reply #7 on: July 07, 2011, 11:19:48 AM »
They don't look at all like quaker pistons, though.
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Offline mick7504

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Re: Unknown Art pistons
« Reply #8 on: July 07, 2011, 07:50:07 PM »
I'm tempted to put my money on these.
Not identical but they look very close.
Just typed "Honda CB77 Piston" on ebay and quite a few came up.

http://cgi.ebay.com/ebaymotors/Honda-CB77-CL77-NOS-PISTON-S1-0-25-/160547212929?pt=Motorcycles_Parts_Accessories&hash=item25615c0e81
« Last Edit: July 07, 2011, 07:51:43 PM by mick7504 »
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Offline turboguzzi

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Re: Unknown Art pistons
« Reply #9 on: July 08, 2011, 04:20:04 AM »
Quote from: mlinder on July 07, 2011, 11:19:48 AM
They don't look at all like quaker pistons, though.

OK, OK, my bad wording, was just trying to be constructive.....should have been more specific :)

meant that if he is looking for replacements for those pistons with destroyed ring lands, then KZ700's might be good, same basic dims.....  ;)

Peace and grease,

TG
« Last Edit: July 08, 2011, 04:28:06 AM by turboguzzi »
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