First ski

Hi everyone. I am looking to get started with stand up skis, I have been riding sit downs forever and I think they look fun. So I found a older Yamaha 650 superjet and I am wondering if there is any common problems, anything I should check for? Also your opinion on the ski. Thank you!
 

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Look for cracks in the hull and pole. They're pretty reliable, the 650 will be underpowered compared to either of the 701's but it pulls really smooth so it's a great starter ski. You could buy a 701 later on to put in it or sell it and buy something else, it won't be worth much less in a few years than it is now, unless you crash into a rock or something.

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King Kang

Never enough tray time...
Location
Cary, NC
That does look like good price for a starter ski. You can buy or make a shock pad to help minimize the likelihood of breaking the pole.

You might want to ask the seller for a test ride. These can be really reliable skis if they've been cared for properly. Get a new impeller asap- the stock impeller is trash and makes the ski cavitate like crazy. This hurts your handling and acceleration. Riding with the stock prop is like driving on bald tires.

Here is a comprehensive list of things that have gone wrong on my 650 SJ since I bought it in 2002. It was a clean, one-owner ski and had been maintained very well. I paid $2,500 for it, a mint JS 550, and a two ski trailer.
  • Stuck start/stop switch prevented the ski from staring. Fixed by taking SS switch apart and cleaning it.
  • Ruptured rubber jacket on stock exhaust filled the ski up with water. Fixed by putting on an aftermarket pipe.
  • Electrical problem prevented the ski from running. Fixed by opening ebox and plugging the wire back in.
  • Ski died in water. Aftermarket pipe coupler separated because it was too short. Fixed by buying a longer exhaust coupler.
  • Ski died in water. Fixed loose battery terminal connection.
Other than that- just standard maintenance (plugs, fuel filters, batteries, carb rebuilds.)

The ski you're looking at has some notable limitations compared to the SN that came with a 701 (94 and 95 model years.)
  • Weak mid shaft (only relevant when you upgrade your motor)
  • Narrow exhaust hose
  • Ugly graphics
The bottom hull on that ski was used throughout the Superjet line until it was upgraded in 2008. It is a very fun ski, and a very good one to learn to ride with. There are lots of upgrades you can do if you're into modding skis. Upgrade your prop, handlebars, and grips quickly, and you'll reduce your learning curve.
 
You'll kick yourself for not picking this up down the line. 650 superjets are as bullet proof as it gets for a stock ski. Mine was a workhorse till I started getting more experience riding and riding a lot harder. Even then, the motor drank more water than I drink beer (and I drink beer) and it still runs, though its on the bench now.
 
S
You'll kick yourself for not picking this up down the line. 650 superjets are as bullet proof as it gets for a stock ski. Mine was a workhorse till I started getting more experience riding and riding a lot harder. Even then, the motor drank more water than I drink beer (and I drink beer) and it still runs, though its on the bench now.
So your saying don't ride it hard?
 

smoofers

Rockin' the SQUARE!!!!
Site Supporter
Location
Granbury, TX
No, he's saying he abused it like an unwanted step child and the ski kept asking for more.

A 650 square nose is a great ski to start with. The biggest flaw with them is the heavy and weak pole, which can easily be upgraded to a round nose pole. The midshaft bearing carrier is smaller, but the bearing and shaft of a newer superjet swaps right in. Down the road a 701 will bolt right in if you want to upgrade.
 
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