blaster / sj pump the same?

CarFanatic

Fiberglassing Newb
Location
Cincinnati, OH
I have a blaster with dual carb 701. I am thinking about bout building a bob next spring, do the blaster b1 and sj use the same pump? I thought they did just wanted to make sure
 

The Penguin

triple secret probation
yes - well, sorta.

some of the old pumps the siphon drained through a large hole in the side of the pump

later they changed to the tube that drains out through the reduction nozzle.

I don't know when Yamaha made the change, but even on the later pumps the boss is still there - but it is solid aluminum. That is where everyone drills/taps to add dual cooling.
 
yes - well, sorta.
some of the old pumps the siphon drained through a large hole in the side of the pump

later they changed to the tube that drains out through the reduction nozzle.

I don't know when Yamaha made the change, but even on the later pumps the boss is still there - but it is solid aluminum. That is where everyone drills/taps to add dual cooling.
93 was the first SJ to have the siphon tube in the reduction nozzle which now was made of aluminum
 
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