Yamaha Power Valves !!

L

lilracer

New member
Joined
Oct 17, 2007
Messages
68
Age
54
Location
windsor.ont
#$%&* These things are a JOKE ! I can't believe YAMAHA engineers came up with such a crappy system ! Maybe it was done on purpose ? After all these thing are deffinately not cheap to replace! I have ridden Ski-Doo all my life . This 2000 SRX is my 1st yamaha. I have to say, Ski-doo out shines yamaha in this department. All 3 of the valves on my sled pulled through. Not all at the same time but it is still very frustrating. #$%&* :o|
 
When I ahd my srx7, I had 2 pull through right after I got the sled.
I then cleaned and adjusted them every 500 kms with not one pull through for 3000 kms. Clean em religiously and it will help alot.
 
I would rather have some pulled thru powervalves on a 8 year old sled that can be repaired very inexpensively instead of catatrophic engine failure on a 2 year old skidoo just out of warranty. Did you think this thru before u posted????
 
Turk said:
I would rather have some pulled thru powervalves on a 8 year old sled that can be repaired very inexpensively instead of catatrophic engine failure on a 2 year old skidoo just out of warranty. Did you think this thru before u posted????
Click to expand...

i was gonna post something along the lines of this first also, but figured i would keep my cool. damn doos cant keep a top end or bottem end together.
 
lil racer , i think the fellas are pretty bang on, i know their is alot of shit they could have done better , collar bearing on the axle , power valve cables , suspension , but you are comparing apples and oranges your ski doo's never had a servo motor system , its funny how yamaha comes out with something ,, 4 strokes that can actually beat 50mph and then the rest catch up , so when you build it first its not hard to copy and improve !!!!!! my buddy wanted to try my sxr on a ride and i ended up parking his formula 3 99 on the side of the trail and walking , you got to be a good rider to stay on those things , no wonder they need dual runners !!!!! i did not want to wreck it .... not mentioning after 5 miles i thought i neede a thumb transplant....
 
You guys have it all wrong. The rest of the sled ROCKS ! I just don't know why they cut the slot all the way through for the cable?? If they left half the slot there would have been a lot more strength !! I fixed all of them myself so they're not up for grabs.I'm sure they'll be fine now. As for ski-doo and catostophic failure....i've never had a problem with the valves on any of my Mach Z's . I also never had a problem with performance of my Doo because of the valves being out of adjustment !! I was only making reference to this being a poor design on YAMAHA's part . I am only voicing my opinion on the valves .I'm not here running down the "SRX" hell i own 1 !! By the way, i thought this through before reposting but thanks for asking !
 
I own 2 SRX's and my 2001 has 12,000 kms with original power valves and cables. Motor still has 125lbs. compression right across. Run PREMIUM gas only and SYNTHETIC
OIL. Clean your valves twice a season and you will never have a pull through. Proper maintenance is the key to trouble free riding.
 
Blue4U said:
I own 2 SRX's and my 2001 has 12,000 kms with original power valves and cables. Motor still has 125lbs. compression right across. Run PREMIUM gas only and SYNTHETIC
OIL. Clean your valves twice a season and you will never have a pull through. Proper maintenance is the key to trouble free riding.
Click to expand...
he nailed right there!High performance brings higher maintenace. there is a link on a previous pv post ( page3-4)
to a place where cables are 15 and valves are 58....
 
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