Recent content by oldschool440

Whats up Toby it's Mike aka seadoobutch787

Alright here goes. I built a 550/750 conversion a couple years ago and in the beginning I ran a 44sbn and it ran sweet! Now I scored a set of 800sxr carbs for my 750ss small pin and I'm wondering what jets I should run on my setup. Right now it has 150m 80l 1.5 N&S 80 gram spring. The throttle...

Piece of cake building a 550/750 with 750 pump.

How much for the parts I need bud?

Hey guys I just recently built a 550/750 conversion. My ski has a SP 750 with Coffman 3rd Gen pipe Milled head Lighten flywheel Timing advance 44 sb

Tipafew We do get rollers like that on lake Michigan, in the fall around Sept-Oct.

Hey guys I'm building a 550/750 right now. I have a Supertrapp waterbox that has the open end cap and 7 discs, this was run in my 550 for awhile. I'm going to be using it with the 750 kawi that is going to be a limited mod. How many more discs should I run in the supertrapp? The hull is a 95...

I ran my 550 for years with the timing advanced all the way and this was with a ported cylinder,coffman pipe,milled head and sbn 44 with no problems! Just run 93 octane in it! I could hold that thing pinned for awhile. I have a nice 550pp head that was milled by groupk I can sell ya,it ran...

Put a 750sp in that ski!

Will the stock 750sx throttle cable work on 750sxi carbs? I think that the 750sxi is longer. I want to upgrade to 96 or newer mikuni duals which run on the sxi. Riggowrestler when you said those carbs rip, do they rip all over the powerband or just low or top end?

On my buddys 88 550 he has a stock motor with only an old school K&N air filter. Could i get some info on Good N&S size jets spring also will he need a throttle drum on that carb or will the stock 550 throttle work. Thanks Mike

I know this is an older post but i have a limited 750sx and right now it has a skat 9/17 standard prop in it. I want to get better bottom end and i was wondering if i could run a skat 12/17 swirl which is recommended for a limited 750sxi. What do you guys think? Or maybe lol i will wait to put...

...I put the HT sides on myself using glue instead of staples, using staples makes the 18yr old plastic really brittle so that was the best thing for it. I plan on putting HT B stock on the rails in the next week or so, then it's off to get some MC# and a graphic or two. Then a couple more...

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