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I am also going to say that there are external factors such as porting , pipes , compression , different ignition systems and pump load that determine whether it will pull off the bottom better with 38's or 44's but a back to back test would tell us what pulls better on your ski.

I believe in supporting those that support the sport but at the same time I like to support local guys when I can, where I am at you can't because there aren't any , you are lucky you have someone reputable that is close enough to drive to , I will probably be using Paul instead of sending my...

You use the rings for whatever size bore you have, if it's 81.00 mm the use 81.00 mm , if it's 81.25mm then use 81.25 mm rings, the only time you use oversize rings is when you bore the cylinder to the next oversize , I will be very surprised if the wrist pin bearings are your issue , they...

they are defiantly not sold as a matched set , order , install and done, I would give it a hone and replace the rings minimum , you might want to go ahead and replace the crankshaft seals that way you can spin all the bearings by hand and know that they are good as well.

As I said before BR8ES plugs were fouling out in brand new machines here , when I worked at the dealership , I serviced out a brand new ZXI 1100, I told the owner I needed to swap out the plugs in it, he said we are not doing that run what came in it , he has a warranty , I said fine but you get...

Glad to hear it maybe mow you will get some answers.

Run BR7ES plugs or B7ES , the 650's , 750's ,900'S and 1100'S never liked 8's , we always had to swap them out or it fouled them out , I used to pull them out of brand new skis and swap them out they fouled out so bad . Your wires may be shot but a set of b7es plugs and some non resistor plug...

I have stopped by several times , his truck was there no one answered the door, the last time I stopped by I left a note and my business card , not much more I can do , ball is in his court .

All this external sleuthing you are doing is great , wonderful , fabulous and all of that , it is getting you absolutely nowhere .

Luck is defiantly a factor for sure , most of what I have been doing here this year is getting older skis that have sat for years running again , some have say 4 -10 years , I haven't replaced cranks seals on any of them so far this year and in the end they have all run out just fine , the only...

The engine will actually come out without doing all of that but yes I agree they are not easy to get the engines out of either way , I can pull the top off one of those blindfolded by now , not that big of a deal really , luckily you won't have to do that very much , as on all Yamahas that are...

I don't think I have ever replaced any electrical stuff on one other than a starter here and there , a bunch of starter solenoids, but that's across the board on Yamahas and one stator on a ski that had the starter clutch blow up and destroy it , maybe you got a bad run of them IDK , but I can...

If you will notice I didn't include anything with a Yamaha 800 or 1200 power valve engine , there are two types of Yamaha power valve engines , those that the oil line has come off of or the power valves have dropped and those that are about to have it happen , if any kind of decent mechanic...

I believe you are referring to 99 and later power valve engines in which case I agree , the 98 model however has a 65u non power valve engine in it , I also have to disagree with your evaluation of Kawi couches , out of all the brands I work on Kawis the least , they are damned tough . To me...

That 98 Yamaha is an excellent machine with a non power valve engine which is what you want ,

That is very good to hear , it could be a benefit to everyone if they get the quality up to snuff.

I try to speak on subjects that I know or have had first hand experience with, this is one of them for sure , I had one of the first 550 reed engines in the states because I ordered all new parts off the microfiche when it came out , which is before the ski actually hit the showroom floor. They...

Knowing what I know after a few years of using SBT starters and other electrical parts and having them quickly fail I had to go in a different direction . As most here know you can have the best engine on the planet but if it won't start and run consistently what good is it , I think a lot of...

Yep they are defiantly thirsty.

I will go along with the motor parts being cast and or manufactured by SBT , my question and I believe this is a legitimate one is where are the electrical parts coming from ?