650 to 701 Conversion sn sj questions

chief775

chief775

Location
Reno, NV
For all you superjet geniuses

1. The bottom rubber stop on the bottom of the 62t (came out of a waveraider && pic below)... Can i cut this so the engine will fit or do i need to get a new stop from somebody/somewhere?? i can't find any info on it...
1.png


2. Engine mounts... do i need a set of 701 engine mounts? or can i use the stock 650 mounts??

3. I have a factory b i'll be putting on... any suggestions or tricks? or do i just bolt, drop in and tune?

Thanks!
 
Forrest McLauchlin

Forrest McLauchlin

Location
Medford Oregon
chief775 said:
For all you superjet geniuses

1. The bottom rubber stop on the bottom of the 62t (came out of a waveraider && pic below)... Can i cut this so the engine will fit or do i need to get a new stop from somebody/somewhere?? i can't find any info on it...
View attachment 357162


2. Engine mounts... do i need a set of 701 engine mounts? or can i use the stock 650 mounts??

3. I have a factory b i'll be putting on... any suggestions or tricks? or do i just bolt, drop in and tune?

Thanks!
Click to expand...

Just take out the rubber piece, you don’t need it. Motor mounts are the same. B pipe will work great
 
chief775

chief775

Location
Reno, NV
I'll start with that, i'm at 4500ft elevation and go up to 5600ft regularly, do you think i'll need to drop down a jet size for the elevation?
 
SteveC

SteveC

Location
West MI
There are three ribs on the inside of the hull that the pipe chamber might hit when installing. Dremel them flush, is my advice.

Also, place the elbow loosely on the waterbox and chamber and see how flush you can get the chamber and headpipe interface. I had to shim waterbox (a/m box) and rotate elbow to get the interface clean and square. Once good, tighten up box end, remove head pipe, put coupler on chamber and reinstall head pipe. That’s how I got the best interface there.

Also, a new sharp razor blade clamped in a vice (blade up at angle) is a good way to make straight cuts in coupler/elbow. I had to trim both sides of elbow, and the pipe coupler.

Oh, I also put a bit of spare turf on the motor mount and flywheel cover where I kept hitting the pipe, partly to ensure spacing, partly to prevent extensive scratches.
 
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