yeah ok think it has anything to do with the kind of driver who buys a 4st?
true a 4st will run longer but a typical guy who buys a Yamaha 4st would more than likely be the same guy who could get 15k on a cat lay down twin with o top ends.
and so what if a motor will run for ever a hard on his sled young buck buys a vector the chassis is junk in 10k or less the skid has had a grand dumped in to it by then on ans on.
all who buys them and how they ride them .
and for the record tons of old red head yammi trippels out there with factory top ends with way over 20k on em .that said
I will prob own a yammi cat soon and will prob be the last trail sled I buy for a long long long time more the war dept than me on this one.if my trail sleds get 300 mi a yr I am shocked
Ezra, I live 4 blocks from a Yamaha dealer and your gonna have to trust me her on this one bro. I am in the shop nearly every day for one reason or another talking to Kip for many reasons and see and hear of things going on. The failures you are describing are as infrequent as the 2s running 15k. I just sold a Rage with 12k and had zero chassis issues but I did dump 375 into the rear skid, $110 into the front end bushings, that's it. Mr Freeze has 32k on his vector and just replaces his bushings in front end as preventative for the first time and has never,, and I mean never changed a part in the rear skid except a mono shock rebuild and a few adjuster cables that break from ice. DWZ here on this board has 2 Apex one with 11 k and the other with 9600, so far no rebuilds and they have been checked cause I bought the Rage from him and from that experience they get looked at closely now. Sure there are those who are used to a lighter 2s and neglect a heavy Yamaha check over and before you know it the front end bushings are shot and thing can go down hill fast from there. Every Yamaha owner should lift the front end off the ground,,,, say after 7-8k, depending how it's been ridden and check the front end just like you do with a car. it is inherent with a heavy front end sled where the weight is beat up and down. I do know people who had Nytro's and Phazers and they did indeed have issues with front end wear but like I said, you have to keep an eye on that stuff. I believe there was a recall on some Phazer front end hardware where things were coming loose. You know I am a poo owner now but still own 3 Yamaha and all 3 are 2s. I can say with confidence that you are incorrect in claiming that Yamaha chassis and skids are junk after 10k, it's less rare than some 2s running 20k. Another inherent issue with any 4s sled will be drive bearing because of the added 4s torque, also exhaust doughnuts.