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Fj11/Xjr12

Started by Indiana jones, December 08, 2020, 03:19:54 PM

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Indiana jones

December 08, 2020, 03:19:54 PM
So I've just dropped a set of Xjr1200 cylinders onto a set of Fj1100 crankcases and they dropped straight on.
The crank case openings are the same measurements on both.
Plug and play or am I mistaken?
BMW R1150GS,XT600 Tenere,FJ1100 bobber, Ducati 999 BiP x 2

Indiana jones

#1
December 09, 2020, 12:13:22 AM
Did a search. Got my answer. Drop in fit.
BMW R1150GS,XT600 Tenere,FJ1100 bobber, Ducati 999 BiP x 2

fj1289

#2
December 09, 2020, 09:22:09 AM
I assume XJR1300 cylinders would be a different matter?

Pat Conlon

#3
December 09, 2020, 07:28:30 PM
Quote from: fj1289 on December 09, 2020, 09:22:09 AM
I assume XJR1300 cylinders would be a different matter?

The XJR1300 cylinders fit fine, I have one on my '84.

The XJR1300 cylinders are actually 1250cc and Niksil plated.
When the racers oval out those plated aluminum bores, folks like Curt Andrew's put iron sleeves in them for running 82/83/84mm pistons.
Ain't no replacement, for displacement.
http://andrewsmotorsports.mybigcommerce.com/cylinder-kit-yamaha-fj-1412cc-84mm-ross-piston-cylinder-kit/
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3
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