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    Ride plate options. WR312 314 315

    Been running two square nose skis for about 20 years and just bought 2015 Superjet. Iíve just put on a Worx 205 intake grate off one of the other skis and Iím trying to work out what ride plate. I...
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    Re: Running rough on low idle.

    Thanks for you help. Ski is back together and running better than i ever remember.
    Found a few other issues like reed valve gaskets were missing, engine mounts were all broken.
    All fixed now. Ive...
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    Re: Running rough on low idle.

    LOL yes I know. 24 years. Not many get that out of there skis.

    Ok. Well is underway. Took the cylinder block to my new Jetski guy. The cheapest fix? Reco cylinder head swap, supplied with new...
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    Re: Running rough on low idle.

    There are no used engines for sale of any type in this part of the world. There is a place that does reco engines a few states away. They charge $1,400 AUD ($990 US) for a change over. Send them...
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    Re: Running rough on low idle.

    So I’ve done a bit of homework and a bit of reading up. I might be going in the completely wrong direction and reading this section I got confused.

    Cylinder Head Compatablity

    In short a 701...
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    Re: Running rough on low idle.

    Ok, so the 61x oversized 1mm platinum edition would be the 750 big bore??
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    Re: Running rough on low idle.

    Thank you. Great advise. The measurements came back and the sleeve at the bottom is 4mm out. 2mm each side so it’s now oval. So I guess that means that I need new sleeves now as well. So, I’m a...
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    Re: Running rough on low idle.

    No thrust washers on either side of the needle bearing. I can see whatís suppose to be there from the shop manual. Itís really sloppy in there. Obviously the washers are not meant to stop all the...
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    Re: Running rough on low idle.

    [QUOTE=JC-SuperJet;4498925]So it seems that the Piston Skirts are only effective/useful at low rpms?

    OP says Engine ran rough up to 2000 rpm(just of idle) and then smooth revving with 'dem...
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    Re: Running rough on low idle.

    The 650 has a 77mm bore and the 61x has a 81mm bore, so that would require a new cylinder head. What else need replacing if I up size to 61x. Because I can just do pistons and rings at the moment.
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    Re: Running rough on low idle.

    Yep, you were close. Cant believe it was still running.
    Bottom of the piston and the top ring disintegrated and stuck the reed valves open and bent some. 544336
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    Running rough on low idle.

    Square Nose 650cc Superjet:


    Went out today for a 6k run up the river. Didnít miss a beat for the run to the weir. As I get to the 5 knot zone to slowed down it started missing. I pulled over for...
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    Re: Flywheel installation.

    Yes, spot on. That’s exactly what happened. It was only the rear seals that pop out. There was nothing wrong with the front seal. So I did like your quote, here is another one. If it not broken,...
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    Re: Flywheel installation.

    I did buy the flywheel puller. It popped. Made quite a loud noise I wasn’t expecting. I thought it was off. But if there is nothing else holding it on, I guess I didn’t.
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    Re: Flywheel installation.

    It’s wasn’t like I didn’t try. I wiggle, pulled, I did everything but pull out a crow bar.
    From the pics I couldn’t workout what was holding it on.
    That front seal can’t really go anywhere. I...
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    Re: Flywheel installation.

    Superjet squarenose 650
  17. Replies
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    Flywheel installation.

    Iíve just got the engine back in after doing the crank seals.
    So when I removed the flywheel it Ďpoppedí off. I wrestled with it
    but couldnít get it off, front seal was ok, so I only did the rear...
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    Crank shaft seals on a Superjet.

    Ok, so Iíve got the engine out and the bottom off. Have ordered new seals and the couple and flywheel removal tools. Just waiting on delivery.




    Ive read a lot online and I have read my...
  19. Thread: Crankcase seal.

    by Listy
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    Crankcase seal.

    http://www.ozpwc.com/forum/showthread.php/images/icons/icon1.png Crank case seals jumped out.


    Quick question before I start pulling the engine out. I’m getting to the end of the season and just...
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    Re: No spark, no ticket, no ride.

    Thank you Speedracer. Very much appreciated your time on my issue.
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    Re: No spark, no ticket, no ride.

    I'd like to thank those who help me here, especially Speedracer. Without your tech know-how I'd be at a dead end many times. I love this site. A lot of knowledge and experience here. Sometimes I feel...
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    Re: No spark, no ticket, no ride.

    I had the black and white wire disconnected so I got the same readings with it plugged in again and lanyard attached.


    Sent from my iPhone using Tapatalk
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    Re: No spark, no ticket, no ride.

    Start off by saying thanks. I tried to follow you instructions not really understanding the multimeter as I just use it to check my batteries. So I downloaded the instructions to my multimeter and...
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    Re: No spark, no ticket, no ride.

    I've got AC voltage coming from the cdi's black and orange wire to ignition coils while starting. Is there anyway to check the stator without taking it out? It would be Murphy's Law if the issue was...
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    Re: No spark, no ticket, no ride.

    Ok, so far Ive check the stop start switch a few times. Changed the ignition coil, leads and plugs from an identical working ski. Got the same voltage from the regulator GGBR wires. I wanted to...
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    Re: No spark, no ticket, no ride.

    Thanks. Defiantly no spark.
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    Re: No spark, no ticket, no ride.

    Handy. Thank you.
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    Re: No spark, no ticket, no ride.

    I am trying that but I think I'm doing something wrong. Do you need to bridge connections black/white?
    I unplug the white and black wires on my other working ski and it still starts. I unplug the...
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    Re: No spark, no ticket, no ride.

    Ok. So Iíve been at it for two days and Iím still no closer to getting a spark. I havenít checked the stator yet. Thatís next and last thing Iím going to pull out before it goes to the shop and I...
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    Re: No spark, no ticket, no ride.

    Yeah, The box would of never been fully submerged, but yes water hasn't made the ignition lead very happy for starters.
    I'm away from any parts supplier at the moment. I'm really trying to work out...
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    Re: No spark, no ticket, no ride.

    Is water going to potentially going to short out (E).
  32. Replies
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    Re: No spark, no ticket, no ride.

    Yes the ski turns over fine. I'm going have to go through the wire and check them all. No Probs.

    I like to know which colour wire have power with the multimeter and when.
    I have the shop manual...
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    Re: No spark, no ticket, no ride.

    Ok. Things are water resistant in the e-box. I was going check the other connections tonight. So I'll take everything apart and check them. Two cans of carb cleaner later.

    You think it could be...
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    Re: No spark, no ticket, no ride.

    Its a 93 SN Superjet. It's been a fresh water ski for the last 10 years. Found the electrical box had some water in it. For sometime it seems. The wire connection to the spark plug broke as soon as I...
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    Re: No spark, no ticket, no ride.

    Just a little bit of water in the electrical box. I could have done back stroke in it. Corrosion seems to be the issue.425138
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    No spark, no ticket, no ride.

    Was slowing down to enter a 5 knot zone when the ski just died. Now that I've had time to look at it, it has no spark. Have pulled the handle bar switches apart cleaned them, and everything looks ok....
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    Re: 1990 SN Super Jet 650 Winter build

    How did the paint hold up after a few seasons?
    Use marine paint next time or where you happy with high gloss house paint?
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    Re: Bilge connection - What's the other for?

    Yes, sorry its a 93 Yamaha Superjet. When I discovered it was not the original set up. There was no oem bilge. I have my own electric fitted to the hull deck. I cleaned the oil from the number 1....
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    Bilge connection - What's the other for?

    One is the bilge, what's the other connector (2)??
    Number 2 on my one of my ski's are not connect to anything.
    Number 1 hose has black oil in it. That normal?

    409615
    Cheers.
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    Reusing the Mid Intermediate Shaft

    Just replacing my mid shaft housing. Replaced one last year that was so bad the bearing fell out on the floor when I pulled it out. So I wanted to avoid the expensive of replacing the , and the ...
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    Re: Starving for fuel.

    Just arrived in the country where the skis are.... to be greeted with some thing I've never seen before.

    All the petrol in the tank is now sitting at the bottom of the hull, or at least 75%...
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    Re: Starving for fuel.

    Yeah, it was full of crap when I pulled it out to do the mid shaft bearing.
    I've got 2 in line fuel filters (best thing). First one I was replacing often.
    Fuel and system seems clean now and I've...
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    Re: Starving for fuel.

    Thanks John.
    That sounds very intelligent.
    And thanks for the engine warning.
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    Re: Starving for fuel.

    Just found my 400 page Clymer Vehicle Shop Manual
    after it's been missing for over eight years.
    Wow, this book is detailed. Here are their suggestions.
    It says carby adjustment is seldom the...
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    Re: Starving for fuel.

    Thanks. Got a suspicion it's an air or fuel leak somewhere.
    Engine bay smelt of fuel when I took the cover off after two weeks.
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