Super Jet new to owning a jetski

[superjetnewb]

hi there guys Im new to the jet ski world and hope to get in to it big i just bought a 1991 superjet 650 square nose and i have a couple of questions for you guys. So the motor is mostly stock and Im wondering what type of fuel mix do you guys use and how much? Or do i even need to mix? Sorry i know mostly about 4 stroke quads, street bikes and trucks so any suggestions will be great help thanks.

 

[Byeai]

40.1 mix

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[Quinc]

Mix it 40:1. Make sure your battery is always charged.
First upgrade to make is an exhaust.
Second upgrade to make is a stainless steel prop.
Third upgrade is a 701 engine.
Check all of your nuts, bolts, hose clamps, fuel lines, water lines, etc before you ride it.

 

[superjetnewb]

40.1 mix

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Thanks you wouldn't happen to know the size of the tank. Here Is a couple of photos

 

[mthomps]

I premix 50:1 in my 650 superjet per previous owners instruction and also this: http://en.wikipedia.org/wiki/Yamaha_Superjet

 

[Byeai]

5 gallons u want 16oz of oil

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[BIG JOHNSON]

Nice start, let's see a pic of the engine compartment. Can't imagine a paint scheme like that without a B pipe.

I bought a real ratty superjet 650 and put a nice 701 in it and am impeller.

 

[superjetnewb]

I have another question does my 91 superjet have a oil tank that pre mixes for me or do i need to block it off so i can run pre mix?

 

[Byeai]

Run premix u wont accidently blow up your ski if the oil injection fails

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[King Kang]

I have another question does my 91 superjet have a oil tank that pre mixes for me or do i need to block it off so i can run pre mix?

I don't believe Superjets ever had oil injection.

 

[superjetnewb]

thats great thanks. like i said im totaly new to this

 

[superjetnewb]

sorry guys i have a couple of more questions well i talked my brother in to buying a jetski last night so he picked up a older kawasaki 550 a 1989 and i was wondering what oil to gas ratio you guys would run? it has a factory B pipe and an K&n. thanks for your help

 

[tor*p*do]

550s get 32:1

 

[jamesgunter68]

50:1 or 40:1

 

[King Kang]

You have the exact two skis that I have- a 1991 SJ and a 1989 550. I believe the 550 should say what ratio to run right above the gas cap. If memory serves, it should be 40:1 in warm conditions, and 32:1 in cold conditions.

 

[Byeai]

Run 40.1

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[superjetnewb]

You have the exact two skis that I have- a 1991 SJ and a 1989 550. I believe the 550 should say what ratio to run right above the gas cap. If memory serves, it should be 40:1 in warm conditions, and 32:1 in cold conditions.

Thanks thats great info!

 

[superjetnewb]

Door any of you guys know what this plug goes to. 1989 550 kawi

 

[Fro Diesel]

Crankcase vent for whence you fill it w,water makes it easier to drain? Not really sure.

 

[SXIPro]

Run 40:1 in both skis. Keep it simple. That way you can steal your brother's gas with no issues.