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Feb 24, 2018
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#4
I never had one in my ski and I don't trust the driveshaft length threads. One says 140mm which is totally incorrect and another says 23 11/16 which is more likely.
 

JetManiac

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#7
Make sure to note the rear of the fx shaft is different than std for yami 144 pump due to the smaller size and length of fx pump.

If making a shaft for a fx pump, then rear of shaft needs to be modded. If for a 144 or larger pump, then use the length from the tip to prop shelf as a guide or you will get the length wrong.
 
Joined
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#8
So the ID of the bearings of the stock fx pump are smaller than the ID of bearings for a 144 and up pump?

I chatted with a guy that put a 148 in his fx and he used a stock fx driveshaft, he didn't say anything about different bearings. I also didn't ask.
 

JetManiac

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#10
So the ID of the bearings of the stock fx pump are smaller than the ID of bearings for a 144 and up pump?

I chatted with a guy that put a 148 in his fx and he used a stock fx driveshaft, he didn't say anything about different bearings. I also didn't ask.
The bearings are the same. The spacing between the bearings is different. I will try to get a pic for you. If you have one custom made by the overall fx1 length it will be off.
 
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#11
Gotcha that makes sense. I have been chatting with sasquatchcrap, I'm going to get the right dimension using a blaster pump/drive shaft as a template.
 

JetManiac

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#12
FF829135-ED34-47D3-9A40-374AA4883B27.jpeg

Fx1 shaft (on the top) is shorter in the rear section due to the smaller pump design. The shaft on the bottom is from a SJ, but is the same length in the rear as any 144mm yami pump.
 
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