Jetting single 44 in a 61x 701 with pipe/head

[AdamOntario]

Hey guys,

Its been a long time but I took some time off to prepare my buddy's ski for the summer.

Its a 95 701 with a single 44, I got him a pipe (which I believe is a factory dry type 2, see attached picture that I found in another post, same pipe but the one I got is totally black with a riva red header). Also I got him a milled stock head to premium gas (175 psi). Except for pipe and head (and I believe different impeller there is nothing else).

What should the jetting be and what does the stock 44 have.

Stock flame arrester stays for now also.

Thanks,
Adam

 

[AdamOntario]

sorry, here is the pic

 

[Mike W]

PM or call Jr (Paul) at LPW. I'm sure he can hook you up. He helped me out a couple of times.

 

[Matt_E]

http://www.factorypipe.com/media/instructions/yamaha/701sj04.pdf

 

[AdamOntario]

thanks for the replies,

BTW the instructions don't mention single carb and they are for the type 4 (maybe same, don't know)

thanks,
Adam

 

[Matt_E]

Should be very close to the same

 

[SuperJETT]

sjweber has the same setup but a FP ltd and he's currently at 120L/145H but the high screw is almost closed, so will probably end up at 120L/140H. I'm not sure of the popoff, we set that a couple of years ago when we did the head/reeds/etc.

 

[Matt_E]

A dry pipe will be a couple jet sizes different, especially on top.

 

[crammit442]

A dry pipe will be a couple jet sizes different, especially on top.

I'm not positive, but I don't think that's the dry version of the Riva pipe. I believe it's the wet version.

Charles

 

[SuperJETT]

I'm not positive, but I don't think that's the dry version of the Riva pipe. I believe it's the wet version.

Charles

Yes, the water jacket stops 1/3 of the way down the pipe, so it's a wet pipe.

I can't imagine the jetting being that different from 120/145, so that's a good place to start.

 

[Matt_E]

Thanks..didn't know that

 

[jetskiking]

Yes thats a wet pipe. I sold one last year. Like everybody is saying 120/145 would be a good startin point and that would be nowhere close to what you would run with duals.