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stock bore size

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Atlas
honda305.com Member
Posts: 50
Joined: Sat Apr 30, 2011 10:42 am
Location: Muscatine IA

stock bore size

Post by Atlas » Tue Jul 03, 2012 5:38 pm

anyone know the measurement on stock pistons or the stock bore on a 305? I have taken my dream apart and want to rering it but there are no markings on the pistons. Thanks Atlas
ca77 cl72 BSA A10 ca95 cd175
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LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: stock bore size

Post by LOUD MOUSE » Tue Jul 03, 2012 5:45 pm

Then they are the original pistons.
60mm. ..........lm
Atlas wrote:anyone know the measurement on stock pistons or the stock bore on a 305? I have taken my dream apart and want to rering it but there are no markings on the pistons. Thanks Atlas
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Atlas
honda305.com Member
Posts: 50
Joined: Sat Apr 30, 2011 10:42 am
Location: Muscatine IA

Post by Atlas » Tue Jul 03, 2012 7:38 pm

thanks loudmouse can you tell me lust for kicks what 60mm is in thousands? you seem to be the man that always comes through.
ca77 cl72 BSA A10 ca95 cd175
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LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Wed Jul 04, 2012 3:38 pm

I had to go measure a NOS/OEM piston.
My digital mic is MM or Inches.
Pistons are not round they have a larger diameter front to rear than side to side at the skirt..
F/R is 2.360 inches
Side to side is 2.354 inches. .....lm
Atlas wrote:thanks loudmouse can you tell me lust for kicks what 60mm is in thousands? you seem to be the man that always comes through.
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CliffC
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Joined: Sat Jan 13, 2007 3:52 pm
Location: Roseburg, Oregon

Post by CliffC » Wed Jul 04, 2012 7:01 pm

So roughly 60mm would equate to about 2,375 thousands, give or take a few, I just couldn't resist :-) Cliff
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