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1150 motor into a 750e/es?

  • Thread starter Thread starter Smokinapankake
  • Start date Start date
S

Smokinapankake

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I have a Jap spec Katana (1984) that I have written about variously on the site here but a strange thought just occurred to me - is it possible to swap in a 1150 motor for the 750?

Reason I ask is that Jap cycles are regulated to a max of 77hp, regardless of size. Not mind numbingly slow, but not mind numbingly fast either.

The Kat chassis is virtually identical to the 83 750 and 85 700 frames.

How painful could this potentially be?
 
alot .

i take it you speak of the 750 es . not the et.
is it a pop up kat or the regular kat with the big square light .


if its the pop up kat forget it ...that motor was a lot shorter length wise than the earlier 750 and therefore the frame cradle was made shorter to suit.....you could however perhaps fit an oilcooled gsxr motor in there as the dimensions are almost exactly the same. the 750 es motor being the precursor to the gsxr motor anyways

if its the regular and in my opinion better kat which had the 750 with the square chrome end caps on the head , then the 1150 will drop straight in the only mods being to the sprocket cover and the bracket under the timing and alt cover(which is surplus to requirement anyways)
 
saffa said:
alot .

i take it you speak of the 750 es . not the et.
is it a pop up kat or the regular kat with the big square light .


if its the pop up kat forget it ...that motor was a lot shorter length wise than the earlier 750 and therefore the frame cradle was made shorter to suit.....you could however perhaps fit an oilcooled gsxr motor in there as the dimensions are almost exactly the same. the 750 es motor being the precursor to the gsxr motor anyways

if its the regular and in my opinion better kat which had the 750 with the square chrome end caps on the head , then the 1150 will drop straight in the only mods being to the sprocket cover and the bracket under the timing and alt cover(which is surplus to requirement anyways)
Click to expand...

What he said-

I am currently finishing an 83 GS750ED myself, stuffing a GSXR1100W into it.
That's not a typo, yes a Water pumper & yes it is crazy fun.

Albeit the Oil Cooled GSXR motors are the preferred due to lack of radiator and such I just dealt with.

Ron
 
Yes, Saffa, its the pop up, not the "proper" Kat, although I have one of those too and it is plenty powerful for me.

Only reason I ask is that I thought the 1150 motor looked very similar to mine.

No real reason to swap em out, just curious.
I saw your thread Busafied and was interested in it but for some reason I don't see any photos....

Thanks for the replies!
 
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