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Vintageman  

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Posted: Mon Jan 16, 2012 9:03 am 

 
 
 
Expert racer  

Joined: Tue May 18, 2010 5:38 pm
Posts: 1432
Location: New Hampshire
Country: USA
Bikes owned: Suz, Yam, Honda, Kaw.
 

Will Suzuki X7 pistons fit a Suzuki GT380 engine?

Thanks


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74 GT250 (T350 upgrade),
76 GT250 (T350 upgrade),
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74 GT380,
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Vintageman  

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Posted: Tue Jan 17, 2012 8:46 am 

 
 
 
Expert racer  

Joined: Tue May 18, 2010 5:38 pm
Posts: 1432
Location: New Hampshire
Country: USA
Bikes owned: Suz, Yam, Honda, Kaw.
 

Are there two versions of the X7? I see on ebay, fellows from UK for example show pistons for X7 fit GT250AB. Some say GT380 some do not.

Or was the X7 piston always different then the GT250A and B. I know the A and B had to move the ring locating hole so it did not catch on the extra port. This does not matter for GT380


_________________
Current Bikes
74 GT250 (T350 upgrade),
76 GT250 (T350 upgrade),
71 T350,
70 T350,
74 GT380,
75 T500,
73 GT550,
75 GT750,
72 Yamaha DS7 (R5 upgrade),
77 Yamaha RD400 (Daytona Cyls),




 
 
 

 

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Craig380  

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Posted: Fri Jan 20, 2012 1:03 am 

 
 
 
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Joined: Mon Dec 01, 2008 2:52 am
Posts: 1165
Location: Manchester, UK
 

+1 to what Pedro said, I remember a post on the UK Suzi Owners Club forum. The bike will actually run with X7 pistons but wouldn't blow the froth off your beer, the piston crown to wrist-pin height is wrong and the skirt is too short.

The X7s had a hybrid piston-port and reed valve intake. Lots of GT250 pistons out there, I believe Mitaka do aftermarket kits up to 2mm oversize.


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1976 GT380 - wounded by me, and sold on
2006 SV650S. It's got cams, and valves, and stuff




 
 
 

 

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Vintageman  

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