kx 85/100

Y

yamarider88

Member

Jun 24, 2007

153

0

• Jan 17, 2008

• #1

do the kx 85's and 100's use the same cylinder bore and different length cranks? i guess what im trying to ask is if i put a kx100 head on a kx85 will it give me the extra 15cc displacement?

 

Patman

Pantless Wonder

LIFETIME SPONSOR

Dec 26, 1999

19,765

1

• Jan 17, 2008

• #2

Same crank different bore.
52.5x45.8 vs. 48.5x45.8

 

Y

yamarider88

Member

Jun 24, 2007

153

0

• Jan 17, 2008

• Thread starter
• #3

all right ! THANKS!

 

G

griffbones

Member

Sep 12, 2006

329

1

• Jan 17, 2008

• #4

yamarider88 said:

do the kx 85's and 100's use the same cylinder bore and different length cranks? i guess what im trying to ask is if i put a kx100 head on a kx85 will it give me the extra 15cc displacement?

Click to expand...

You will have to swap out the head and cylinder both, not just the head. The bottom end of the two engines are identical.