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  1. Replies
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    Re: 951 porting advice

    I think the drive shaft needs to be longer? Is that correct?
  2. Replies
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    1,833

    Re: Progcdi custom cod install on 650 sx

    What would that gain me? I do not have one.
  3. Replies
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    4,679

    Re: Pro Watercraft pump stuffers

    I haven’t noticed any improvement, but my ski is also highly moded.
  4. Replies
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    1,833

    Re: Progcdi custom cod install on 650 sx

    I took it off two years ago. I cannot recommend buying one at this point. I thought that it gave up the ghost because it would not auto power up. When I got it out of the ski it seemed to work...
  5. Replies
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    1,907

    Re: 951 porting advice

    Is this something you are trying to sell?
  6. Replies
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    1,907

    Re: 951 porting advice

    Thanks for the info guys. I did get this together. Used a 46cc ada head, wossner pistons, pro k and a group k bore job. The most significant change I made to the exhaust port was removing the...
  7. Replies
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    1,907

    Re: 951 porting advice

    Yes, an important point. Generally called free porting. Plenty of room to avoid free porting here.
  8. Replies
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    1,907

    Re: 951 porting advice

    I did not do raise the ports. I did not change the timing significantly at all. Seems pretty good for a stock rev limit. I did clean them up some and gained some area. The boost ports where...
  9. Replies
    16
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    1,907

    951 porting advice

    Noticed the exhaust port on my 951 is quite a bit higher than the piston crown at bdc. Any advice on lowering it? Did you see a crazy jump in fuel consuption?
  10. Re: Dreaded Cavitation issues 96 Speedster twin 717's

    Did you align the drive shaft?
  11. Replies
    10
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    2,091

    Re: 951 melted piston

    That sound noise to you guys?
  12. Replies
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    2,091

    Re: 951 melted piston

    https://m.youtube.com/watch?v=GrI_hrs6nG4
  13. Replies
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    2,091

    Re: 951 melted piston

    Yeah, I am not sure how much water it was burning but it was missing a piece of gasket at the junction. It was not was cleaned, but increases all carboned up. Maybe the exhaust was blowing in the...
  14. Replies
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    2,091

    Re: 951 melted piston

    http://youtu.be/Grl_hrs6nG4
  15. Replies
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    2,091

    Re: 951 melted piston

    Yes it was leaking at the y pipe and main pipe junction. Here are some pics and video. Definitely had some water in it over the years. A little rust on the crank. Feels smooth but seems a little...
  16. Re: Where to get 951 cylinder and crank or motor?

    Were those oe m plastic race cranks.
  17. Re: Where to get 951 cylinder and crank or motor?

    Great running engine with 100 original hours. Needs a top end, but not just going to top end a 20 year old engine. Want more power but would like to get another 100 hours or so. We ride it much...
  18. Re: Where to get 951 cylinder and crank or motor?

    Carb. Kinda want a big bore.
  19. Re: Where to get 951 cylinder and crank or motor?

    Great core. Silver. 2001xp
  20. Where to get 951 cylinder and crank or motor?

    Looked SES and Fullbore. Fullbore seems a bit scary with some of the reviews.
  21. Replies
    10
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    2,091

    Re: 951 melted piston

    Interesting. I have seen others suggest the water leak on the internet. I have never seen something that. Has good compression. No stuck rings or galling on the skirt. I will post some pictures...
  22. Replies
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    2,091

    951 melted piston

    Decided to pull my raves out of my 951 after noticing a couple hundred rpm loss at WOT. Looked down the hole and seen that the piston is melted above the top ring. Looks like a 45 bevel that...
  23. Re: 88 650sx only wants to go after a jump/get air

    Looks lean. You sure your getting the police right?
  24. Re: 88 650sx only wants to go after a jump/get air

    What do the plugs look like?
  25. Replies
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    3,545

    TDR Water box for RXP 215

    Anyone have an opinion on TDR baffled Water box for a 215 RXP. How loud are they? Did you gain any speed?
  26. Re: I didn't know 650 as bad a stainless wear ring

    https://www.amazon.com/kawasaki-Wear-Ring-jetski-750WR/dp/B00M9PNVDC/ref=pd_ybh_a_1?_encoding=UTF8&psc=1&refRID=GRGRAYHTFVDG9MDVDDBQ
  27. Re: I didn't know 650 as bad a stainless wear ring

    Thanks 200%. Hell, I found these on amazon. Dimensions and all. Lol! Perfect. Just have to be shortened.
  28. Re: I didn't know 650 as bad a stainless wear ring

    No mine is not bad, but I am sure someday it will be. I will not be replacing my good pump with some rotted out junk off ebay. There are lots of old post on here concerning DIY repairs. I have...
  29. Replies
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    Re: Pro Watercraft pump stuffers

    Don't tell me that now; i just bought one. Nice work crankenstein, but it does look like pwr stuffer extends closer to the pump.
  30. I didn't know 650 as bad a stainless wear ring

    I always thought 650 didn't have a wear ring. Found some old like to sellers,but only can find for 750. Can these be modified to fit? Am I looking in the wrong place?
  31. Re: Jb weld or some other epoxy for 650sx pump wear ring

    Still don't see how it would be significantly different from a plastic wear ring. I wouldn't let a f#$%&$g clown like you near my lawn mower.
  32. Re: Who makes the best 650 sx pump bearings.

    Know the number offhand.
  33. Re: Who makes the best 650 sx pump bearings.

    Dang, I didn't know you could buy any new oem parts for these. Learn something new everyday.
  34. Re: Jb weld or some other epoxy for 650sx pump wear ring

    I am not sure you understand what I mean. Sea doo uses a plastic wear ring. Although I am aware some plastics like delrin are extremely tough. I would be concerned with the adhesion when so thin. ...
  35. Replies
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    Re: Best intake grate for 650sx

    Thanks for the input guys. Went with a worxs since it is recommended for the tunnel stuffer. Thankfully no damage to my stator. Only small dings to impeller and a big gouge in my tunnel.. My...
  36. Jb weld or some other epoxy for 650sx pump wear ring

    Anyone ever tried this. Skim coat the inside of the pump with epoxy. Then turn it down to the correct clearance on a lathe.
  37. Re: Who makes the best 650 sx pump bearings.

    No favorites, huh.
  38. Replies
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    Re: 550 & 650 Pump Stuffer

    Thanks bird. Seems people generally seems to like them. Just ordered one as it will also cover the gouge in my tunnel where the pump ate the grate.
  39. Replies
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    Re: 550 & 650 Pump Stuffer

    No other opinion on these?
  40. Who makes the best 650 sx pump bearings.

    Who makes the best bearing. Only got 2 years and about 70 hours out of my last set. Granted it did eat the intake grate, but I don't think that had anything to do with it. Felt loose before that.
  41. Replies
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    Re: 1992 kawi 750sx sitting for 15 years

    Dang. I wish I was closer to vegas.
  42. Replies
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    Re: Knife edging intake grate

    Thanks matt. That seems like it would be a safe bet. Knifing the trailing edge would reduce turbulence and drag. I tried to find some formulas, but the math was making my head hurt. Did you use...
  43. Replies
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    1,318

    Knife edging intake grate

    Any performance to be gained by knife edging the leading or trailing edges on the intake grate bars, scoops, etc.
  44. Replies
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    Re: 550 & 650 Pump Stuffer

    Have looked at these for awhile for my 650sx. Probably going to spring for one along with the worx grate since I need a new one anyhow.
    Any more input from people that have them? Will it...
  45. Replies
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    4,573

    Re: 1988 650sx headed for the gabage

    WFO, have you ever seen one of these take off across the lake with no one on it? I always hear horror stories like tbis, but if no one is on mine and I give it throttle it just submarines.
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