Quick ? what's all needed to do a topend rebuild on a 2000 SRX 700 I had someone do a comp test and his read 100 across and mine read 127 across he mentioned that I should do a topend rebuild this summer so the SRX is in store for a new topend, I have a grass drag in Aug then its rebuild time
the engine has 5100 miles on it
the engine has 5100 miles on it
Pistons, rings, circlips, wristpin bearings if you chose, head o-rings, water rail gaskets if your not careful, base gasket if you don't want to reuse it, anitfreeze, time, beer, clean place to work, and that's about all I can think of off the top of my head. Have fun
In short, a few hundred bucks and an afternoon.Mysledblows said:Pistons, rings, circlips, wristpin bearings if you chose, head o-rings, water rail gaskets if your not careful, base gasket if you don't want to reuse it, anitfreeze, time, beer, clean place to work, and that's about all I can think of off the top of my head. Have fun
Super Sled said:
Yep - that pretty much sums it up.
It's time, my sled had about 5000 miles on it and all pistons were under spec.
It's a shame these Yami motors already need to be rebuilt after 5,000 miles. I have a 97 800 Rotax motor in my seadoo with 212 hours on it and it still pumps factory compresion and RPM. I average 40 miles an hour so do the math. Oh yeah btw, friction on water is way more wear and tear on a motor than ice and snow and cold temps any day.
Compression is one thing, but how does it do a leak down test? The motor can pass a compression test but fail a leak down test miserably. Just because it still cranks the right compression and rpm does not mean it's not time to refresh.
staggs65
Moderator
x2, there are plenty of people on here with over 10,000 miles on untouched engines. but for me 3000 is the limit before i at least rering and check things outnorwegian said:
crazykid
New member
SRX_700 said:
IS THIS A JOKE!!!!!!!!! It sure made me laugh!!!!!! One of the funniest things ive heard on this site in a long time. Thanks alot for making me laugh so hard. This site really needs this kind of " JOKE" during the off season, It gets a little dead here during the summer months. Thanks again for the laugh. LOL LOL LOL.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
true..with 5000 miles you have put on around 2000 hours maybe.Lets see what that rotax does with 2000 hours on it..chances are it won't get half way there..lol
bluemonster1
LIFE MEMBER ONLY ONCE!!!
ANDY..you will be better off with a 800 rotax in that SRX of yours then..lmao
bluemonster1
LIFE MEMBER ONLY ONCE!!!
I am even surprised you ask what you need for a rebuild..did you not read my thread on my SRX rebuild and follow it... 
I'm looking into what's needed for the transplant LOL!bluemonster1 said:
bluemonster1 said:I am even surprised you ask what you need for a rebuild..did you not read my thread on my SRX rebuild and follow it...
It was too long of a post to follow, I figured with all the info on here it would be given faster LOL!!!!!!
Just kidding Doug I forgot you did a rebuild last yr it must be this warm weather messing with me I NEED SNOW or maybe a little grass racing going on
oh ya thanks for all the birthday greetings
bluemonster1
LIFE MEMBER ONLY ONCE!!!
no problem!!!
bluemonster1 said:
Blue. Have you checked your math? If you rode for 2,000 hours and only covered 5,000 miles, that means you avg. speed is 2.5 miles an hour. LOL. Avg. sled probably does 35 mph. That would give you 142 hours. That is the first time I changed my plugs on the Rotax. I average 34.18 miles an hour on the Seadoo (it's on my info gauge). That is 7,280 hard miles as the friction of the water equates to the stress on a motor going up a hill that has a 45 degree incline, all the time. Not bad, if I do say so myself.
No country produces a higher quality of metals for production line engines than does Germany. As The Rotax Engine facility is located across the border in Austria, the nearest source for steel, cast iron and aluminum is from the nearby German foundries.
Porche, Mercedes, The Volkswagon Group, BMW and all of the companies producing the quality of engines that come in German vehicles is rarely matched elsewhere, alot of that is the high quality metals produced there.
SRX_700 said:
You're not fooling anyone. Rotax makes junk, period. I have seen too many catastrophic/unwaranted/"out of the blue" engine failures to ever be convinced of anything different.
crazykid
New member
LOL LOL LOL, Man this guy is funny, Him and his 'BLOWTAX'. You cant tell me there is more stress and wear and tear on a seadoo motor compared to a snowmobile, Seadoos have constant fresh cold watter to cool it, the injection oil is always at the same viscosity compare to a snowmobiles tar like viscosity in freezing temps, Besides, Have you ever even looked at a seadoo or snowmobile engine? Look at the tiny little shaft the comes off the crank to run the impeller on a seadoo, Looks pretty tiny eh? Let see that shaft drive a snowmobile, something just doesnt make sense, If there was so much stress on the motor dont you think the drive shaft would be just a little more heavy duty? Anyhow didnt really want to type this much, but come on man get your facts straight, Yamaha reliabilty being compared to a rotax reliability, What are you smoking? Sorry for the off topic post there andy, and anyone else who has wasted there time reading my posts.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
had a rotax motor blow on my Ski-doo TNT back in the late 70's..never went back to Ski-doo again...I was turned on to Yamaha after that diasater...happy since.