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  1. #11

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    Quote Originally Posted by D-Roc
    i understand what your buddy says, but i still think your loosing power. Do some research and come to your own conclussion as there is many opinions and options. here is some reading material.
    http://www.x-h2o.com/showthread.php?t=147

    http://www.x-h2o.com/showthread.php?t=13273

    BTW what did that flywheel set you back and where did you get it, i can't wait to try mine out.
    LMAO....he gave me the same advice...."don't take my word....or the other guys word.....read this Group K article instead" :-)

    Guess I have some reading to do.

    I think the flywheel was $300 US (mabye $350)....but I got all the goodies as a package deal from the same guy I bought my SJ from last winter (Joe Marzano in Bremerton Washington....you can find him on pwctoday.com under the screen name JM113 (his old racing number)).....for $750 US....pretty good for nearly new parts I'd say (and given what I've seen em go for on eBay).

    Joe buys and sells boats all the time.....think he sells off the good parts and then bolts on some stock parts and flips the boats (I know mine had dual Novis on it before he handed it over...hehe).

    Cheers

    The skis: http://184.69.7.106/clients/bryan/jetski/
    No I'm not one of the fat bastards on the picnic table ;-)

  2. #12

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    man i thought those parts were brand new, very good deal IMO, Yeah reading lots and asking questions is what i usually do alot of before its time to order parts. There are so many combos of parts and its hard to decifer all the information. I haven't heard of anyone talking about overcarbing a motor before. Dirtbikes have a 250cc and run pretty big carbs and run fine, your motor had novis on it and probably ran like a raped ape. I think alot of racer use dual 48's on there motors even without big bores and strokers. i don't know for sure if dual 48's are too much for my ski but next winter i will get my total loss and then a team scream big bore flat top piston topend to bolt on, if my dual 48's don't work i will slap on the old single manifold and wait a year to run the duals. i am guessing it will run just fine seeing as one cylinder fires at a time but then again i am no tuning guru and i may be in for a nightmare. so did you bolt the head on yet or what? lol lets see some wrenching. Did you get a new key for the flywheel? i read in the instructions to do it.

    http://www.radperformance.com/Yam%20...%20Install.htm
    1996 SuperfrickenJet

  3. #13

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    Quote Originally Posted by D-Roc
    man i thought those parts were brand new, very good deal IMO, Yeah reading lots and asking questions is what i usually do alot of before its time to order parts. There are so many combos of parts and its hard to decifer all the information. I haven't heard of anyone talking about overcarbing a motor before. Dirtbikes have a 250cc and run pretty big carbs and run fine, your motor had novis on it and probably ran like a raped ape. I think alot of racer use dual 48's on there motors even without big bores and strokers. i don't know for sure if dual 48's are too much for my ski but next winter i will get my total loss and then a team scream big bore flat top piston topend to bolt on, if my dual 48's don't work i will slap on the old single manifold and wait a year to run the duals. i am guessing it will run just fine seeing as one cylinder fires at a time but then again i am no tuning guru and i may be in for a nightmare. so did you bolt the head on yet or what? lol lets see some wrenching. Did you get a new key for the flywheel? i read in the instructions to do it.

    http://www.radperformance.com/Yam%20...%20Install.htm
    Nope...no wrenchin yet....parts still have to come up from Washington (probably ship this week when my money order shows up...arrive next week...I HOPE) ;-)

    Nope...no new woodruff....do I absolutely need anew one? or if my exisitng is OK will that do the trick? I guess it's just there for the sole purpose of being sheared off if someting goes BAD.

    Well...you're planning years in advance....you are truly addicted!!

    The skis: http://184.69.7.106/clients/bryan/jetski/
    No I'm not one of the fat bastards on the picnic table ;-)

  4. #14

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    yeah i know i am addicted, i buy stuff that i will be able to use on my "dream" motor as i slowly build it. Carbs are a big mod and are worth the $$ spent, look at full specs/radvalve that will set you back 2000.00 but.....it will make your motor do the most it can. once you buy them there is no need to sell them. you got the best, powerbombs are almost as good and i am not a pro rider so i figure i might as well get them now and learn to dial them in, learn to ride better, get some more mods, learn to ride the new power...etc. someday i'll have a monster motor. as for the key...i was going to use my old one but right when i went to install it i lost it somehow???!!!!! i still wake up at night thinking its stuck to the magnet or something but its not. pheeyuu!! lol. ya so i went to the yamaha dealer and picked one up. 5.00 its peace of mind except for the stupid missing one errrrr!
    1996 SuperfrickenJet

  5. #15

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    LOL....I've lost quite a few bits in the hull....sure hope none of them come back to haunt me ;-)

    The skis: http://184.69.7.106/clients/bryan/jetski/
    No I'm not one of the fat bastards on the picnic table ;-)

  6. #16

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    Braaap...braaaap....braaaaap....ping! oh man! my flywheel key! hahaha thats my reoccuring nightmare. luckly for me all my screwdrivers and fallen nuts and washers and zip ties flow out the scupper into the lake.
    1996 SuperfrickenJet

  7. #17

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    ahhh...right...the scupper....that must be why I haven't had anything come back to hanut me...whew!

    The skis: http://184.69.7.106/clients/bryan/jetski/
    No I'm not one of the fat bastards on the picnic table ;-)

  8. #18

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    one other thing about the key, if it shears and the flywheel twists on the shaft a little bit from the torque of the motor it could change the timing enough that the motor will still be running but the timing is out. if it retards, you'll probably just notice a loss in lowend power but if it advances you could do some deto. i think that is why they suggest a new one in the instructions just to make sure that the 7 year old key doesn't do that with the added snap of the lighter flywheel. Also i am sure you don't want to hear this but i was still thinking about that single 44. i can't get past him suggesting a single 44. The older 61x/61x motors came stock with a 44, then yamaha updated the 701 with the 62t twin carb motor. This made more power than the old 701. Your boosting compression, better reeds, performance exhaust, a prop that will work the motor harder, and then switch to an old 44 single carb???? hmmm i just don't see it. are you trying to build hp or not? I have a set of dual 38's that have been modded a bit but they flow enough to make good power on a stock stroke 85mm flattop lamey cylinder, eventually they got replaced by dual 48 full specs to make more power but they still worked good enough to keep that motor from blowing, i don't think a single 44 could have done that. Please don't let me persuay you but i love talking about this stuff, i wish there were more people posting to see what they think about it. Lets discuss.
    1996 SuperfrickenJet

  9. #19

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    ditto on more opinions....good to get a discussion going. I wish I could post PDF files here (yes Jetlag...PDFs..hehe). The Group K article is in PDF format and I can't find it on the Group K site o point ya to it.

    Anyways...it's more than a stock 44 he's talking about...so I suspect the same sorts of upgrades ya made to your 38s. I'm looking for a 44 or a 46...whatever I can find to start with. It can't be any worse than what I've got now...and once I'm on asingle carb manifold...a new carb is a snap to bolt on!

    ...but yes...horseys are what I'm after!!

    Cheers

    The skis: http://184.69.7.106/clients/bryan/jetski/
    No I'm not one of the fat bastards on the picnic table ;-)

  10. #20

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    oh yeah...and thanks for the extra info in the key....problem is it may be a bitch to get locally (not much in the way of PWC retail stores around here.

    Where'd ya get yours? Yamaha dealer? Did they sell PWCs or are the keys fairly universal?

    The skis: http://184.69.7.106/clients/bryan/jetski/
    No I'm not one of the fat bastards on the picnic table ;-)

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