headers question
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headers question
I'm wondering what headers I would be best using with a YZF750 engine with Ace crank etc. I guess it will be a Thunderace engine. What interchanges? early FZR? exup? Is there any difference in angles fitment etc. Cheers!
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I think I remember reading that the YZF750 headers are a little
bit tighter fit around the bottom of the crankcases
(probably due to the shorter stroke on the crank making
a shorter block). But they might still fit if there is only a few
mm difference.
What head are you using? If you are using the YZF750 head
then you'd need to make the YZF750 pipes fit - the part numbers
for exhaust gaskets are different which probably means a different
diameter.
Beware - early (87-88) FZR1000-Genesis are different intake port
spacings and probably different exhaust spacings as well, so they won't fit.
bit tighter fit around the bottom of the crankcases
(probably due to the shorter stroke on the crank making
a shorter block). But they might still fit if there is only a few
mm difference.
What head are you using? If you are using the YZF750 head
then you'd need to make the YZF750 pipes fit - the part numbers
for exhaust gaskets are different which probably means a different
diameter.
Beware - early (87-88) FZR1000-Genesis are different intake port
spacings and probably different exhaust spacings as well, so they won't fit.
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'95 FZR1040 '09 FZ1-S
"And they had a machine, a dream of a machine, with wheels and gears and perfect in every respect, and they lived on it..." -Stanislaw Lem, "Cyberiad"
'95 FZR1040 '09 FZ1-S
"And they had a machine, a dream of a machine, with wheels and gears and perfect in every respect, and they lived on it..." -Stanislaw Lem, "Cyberiad"