superjet midshaft question

[doubletrailerz]

i have a 1990 superjet and need a midshaft will any superjet midshaft fit or what do I need

 

[adet16v]

Greg,

you need to get one from a 1990-1993 model. They changed midshafts in 1994 when they switched to the 701 platform. Buy used OEM; stay away from WSM aftermarkets and the like...

 

[doubletrailerz]

are the hulls different if they are the same shouldnt they all fit

 

[Big Kahuna]

hulls are the same, just the midshaft houseing and bolt patterns changed.. Driveshafts are all the same.

So, you need to find a midshaft/housing
from a 90-93 model superjet.

 

[steveyz250fpilot]

Will the blaster midshaft swap to the sj?

 

[wydopen]

Will the blaster midshaft swap to the sj?

yes

94+ is the same

 

[restosud]

midshaft are different .the thread on early models is smaller than 701 platform.the shaft will interchange but you will need a different coupler to match it.

 

[wydopen]

midshaft are different .the thread on early models is smaller then 701 platform.the shaft will interchange but you will need a different coupler to match it.

between blaster and 94+ sj or between pre94 and 94+ sj??


i gave oxnard111 a blaster midshaft hes running in his ski but he never removed the coupler..just used the stock one

 

[restosud]

not sure on blaster.early and late sj for sure.i've got 2 of them here.
the shaft are alike other than the coupler threads.

 

[wydopen]

not sure on blaster.early and late sj for sure.i've got 2 of them here.
the shaft are alike other than the coupler threads.

correct...

and blaster and 94+ sj is the same

 

[infamy]

so let me make sure im reading this correctly.

blaster 1 midshafts will bolt straight up to 94 and up sj's?

94 and 95 sn midshafts will also bolt straight up to a rn?

just trying to clarify casue i need to pick one up.

now does anyone have a good condition midshaft they want to sell that will fit a rn?

 

[wydopen]

so let me make sure im reading this correctly.

blaster 1 midshafts will bolt straight up to 94 and up sj's?

94 and 95 sn midshafts will also bolt straight up to a rn?

just trying to clarify casue i need to pick one up.

now does anyone have a good condition midshaft they want to sell that will fit a rn?

yes thats right

 

[steveyz250fpilot]

I have a good midshaft from a 94 B1 that I parted out. $135 shipped

 

[WaveDemon]

sbt sells mid shaft housings too. they work well.

 

[restosud]

get a oem shaft for reliability.the housing can be wsm or sbt as they seem to work well enough.

 

[yamanube]

He got a complete OEM setup for $75.

 

[BBYamaha]

He got a complete OEM setup for $75.

Thats a good price, last year they were 50-70 bucks this year i have seen used ones as high as 235$, might as well rebuild yours once the price his 120$ then you have a brand new one.

 

[oxnard111]

Advice I received from DangerBoy who has been in the watercraft industry for 20+ years and riding yamaha's for over 10 is to only use OEM mid shaft housings. Aftermarket bearings and the short shaft itself are usable.

 

[Bkc7893]

yes thats right

How can you tell the difference in mid shaft threading to the coupler? Calipers? I have a 91 sn but has a 701

 

[tor*p*do]

Way to bring back the dead!
91 SN uses specific 90 - 93 midshaft housing.
Source from Jetmaniac
See his midshaft writeup