Thats a good heads up about the chain. Ive got some time before the next trip so I will be changing out the oil and while im there Ill open the chaincase. Ill have a look at the chain and gears and asses what to buy. Yamaha parts arent so readily available in the vale/blueriver/mcbride areas that we usually ride in, so it would be great to have spares to avoid losing out on a trip. Theres another sidewinder in our group so maybe we can share some stuff.
I did have a ratcheting issue when I first got it, noticed it when the sleds front end was in the air, makes sense. Tightened the track and it has held up ever since with no damage to the drivers. The track is quite tight from what I remember from previous sleds but I am noticing an issue turning it.
How about the gears/gearing? Stock yamaha gear ratio or change? Like I said before I do enjoy the sled as it is so unless theres a huge positive for changing the gear ratio I would like to stay stock.
I don't want to mislead you, I don't have a sidewinder. However I have got my share of miles with turbo Yammys. I've been out with a few sidewinders and rode a few as well. I know if your making good power and using it often the wear components take a ****kicking.
Look for problems, don't wait for problems. Ride out with ear plugs every once in a while, you'll be surprised what you can hear with them, I heard a broken link on a chain one time only with ear plugs in, couldn't hear it without just the scream of a 2871GTX!
View attachment 231273 Long post but here it goes,
This is my first post on this forum.
I have been on snow and mud for many years reading, exploring and generally burning up useful time admiring the forums posts.
I finally thought I would give my two cents on the new to me sidewinder. And hopefully I can get some info back from fellow sidewinderians.
I have been through many two strokes from old to new, most makes and models. But this is my first turbo'd four stroke.
Many years I have wanted a turbo but was never sold on the 2stroke turbo reliability nor could I afford a Yamaha turbo build. I only make it out half a dozen times a year so reliability was number one. I could never rent one nor did my buddies ever own one to try (until after I bought one lol),
SO I made the jump and bought a used 2017 Yamaha Sidewinder MTX 162" LE.
I was sceptical at first because I never did get a great personal review from one of these machines. I always heard it was heavy blah blah blah. I remembered the ease of maintenance and operation of my old nytro, I liked that. I remembered back a couple years, we came upon one in Allen creek. The owner said he really liked his and made a comment that stuck with me - "You have to ride one for a few days to really appreciate it, but you will."
When I bought it it had 3700ish kms. Looked nice with the blue and white colouring. Had the 3" powder claw track and fox float 3 suspension (not my first choice but....). It had the CFR handlebars and risers, CR CAI, CR resonator exhaust with cooker, and a burly front bumper, and a cat? magnetic tether with an excessively long cord lol. Mountain addiction 3gal gas can and storage bag. The previous owner said it didn't have a "tune".
It was missing a snowflap, one scratcher otherwise very appropriately priced and worked for me. The previous owner didn't have much knowledge of the machine just said it wasn't for his riding style, fair enough. It was a pleasant transaction.
Brought it home and started going through it before the first trip this year in December. I went through many posts on here looking how to set it up, from clutching to suspension.
Primary clutch -
-yellow red yellow,
-STM heavy hitter weights 60Y with one tungsten weight on the heel (7g), 4 washers in the middle (4g), and 1 tungsten weight on the toe (7g) = 78grams on each weight theoretically. Weighed each one = 79grams close enough. Seems high tho, but what do I know.
-rollers stock and in good shape
Stock helix and spring from what I can tell, 3-3
Replaced rollers to hurricanes harder and slightly larger rollers. Found flat spots on the originals
New belt, cleaned and dried before install
Changed chain case oil and set the tensioner to spec
Track tension seemed to be a little loose but in the old days we ran them a little looser so I wasn't concerned
-85psig in the fronts
-Midway for the front shock spring
-Rear set to approx 200psig
Skis stock and set to middle position
Seat stock, great for trails but a little high to always swing your leg over
Still very unsure if there is a tune on it or not, could not tell
Otherwise the sidewinder ran as a Yamaha should run so I wasn't concerned in that department. Maybe a little loud in the garage but makes a sweet symphony in the hills with the CR racing resonator
SO first day out:
Down the trail the sled ran flawless, nice turbo sound around 5000rpms and up, blistering speed at the flip of the switch. The seat was glorious and the suspension was pretty decent. You could find a nice centering seating spot to deal with the whoops. The windshield sucked - no biggie but it funnelled all the air right into my knuckles and face
In the hills (small amount of fresh approx 1foot) the sidewinder was well nothing short of a beast, a good beast that didn't have the turbo hit that ripped your arms off at half throttle. It just had linear power throughout the throttle range. It was very torquey if that makes any sense. it climbed through areas where I was losing track speed and getting stuck with previous sleds. It felt really balanced maybe even a little tippy on the climbs and responded well to where my feet were located on the boards. The turnouts were awesome as it gave me lots of time to think about it before sticking it. Coming down the hills I could get it on its side and attempt to spin it back up. Yes it did take a little more English but once you found the balance with the throttle and the body position it gave me confidence in the machine.
Weight weight weight. Ive rode many sleds that weight was an issue, this one not much. It is well balanced. Get on the gas and the sled moves where you want. It tips on its side and stays there pretty damn well. Its heavy when stuck but which ones aren't, get strong buddies lol.
Second trip to Renshaw-
We got good snow and fresh groom everyday -oh yeah and blue sky! 3 days!
Fresh lines and deep snow is where these machines shine, they haul the mail and climb climb climb- they hold a great sidehill in the deep (as most machines should) and power up the climb at a moments notice. Gotta watch body and foot position climbing as they react quite quick especially on the gas. The sled engages quickly and has great throttle reaction, great combo for me. NO turbo lag. This linear power abled me to reset myself during many runs and not lose to much momentum.
Coming down the hills the engine braking was not as strong as I was used to on the 2strokes but sufficient enough to come down controlled with the brake.
The windshield sucked again in the deep funnelling all the snow and having its on the goggle warmer and instrument cluster, no biggie.
The track looseness was a factor as I found it ratcheting when the sleds front end picks up - No problem, just tightened it up.
Now some of the long pulls I had two flashing lights come on each side of the warning light dash. Mostly at full throttle. I let off the throttle and got back on it, the lights went away. This happened a couple times.
Now from what I researched there are some tuners out there that have a "Knock sensor". So maybe mine has one and its telling me there's a knock scenario????
At WOT with the clutching mentioned I was only pulling 8350 rpms max. I believe buy the posts I read that Im leaving some power on the table - should be more like 8700-8800. But geez the thing had a lot of power and track speed to spare.
I took the 4 gram washers out of the weights after the trip. 4grams = approx 400rpms. We will see here in January.
Now this machine is a powerhouse but I still got stuck, usually..... actually always because of me.
When it rolls, stop the machine ASAP so you don't get oil in the air intake. Yes I cleaned and checked the anti roll over valve. No big deal it just barfs like a diesel truck after you WOT. Clears up pretty quickly.
And rolling over this machine is not that hard, I expected a tough tug but it wasn't anymore of an issue than the other long track sleds. Hold it wide open on a stuck and you either pop out or dig it to china.
Now for suspension this combo worked for me. On a short run steep climb the sled wants to flip backwards if you hit the hill straight and at full throttle. No issues when I hit the hill on an angle, using the brakes and throttle, and foot position back. Now this is not for the long azz hillclimbs up to the atmosphere that some people with bigger nuts than I have can do. I find the sled controlled and quite a confidence maker. Coming down I am able to get the front suspension to compress enough for me to get the sled on the downhill line I want.
As for the track, I just don't know. It worked great in the deep snow and low snow. I can't compare as this is my first high horsepower sled (above 200). Does a harder 3" lug do better, probably. But this track worked great for me.
Oh yeah one more weird thing on this sidewinder and my buddy's (tried mine and bought one). So it happened in the same scenario for both of us. Flipped over running, then shutoff asap. Rolled it over onto the skis and the sleds were pointed downwards (say the tunnel was 2 feet above the skis, nothing wild). The sleds wouldn't start, turned over but no fire, no codes all fluid levels were good. Pulled them ahead so they were flat and they fired right up. Weird and scary to me. Maybe some sort of fuel pickup in the tank, or air in the line? I don't know but scared me, as there is no backup starting system. But now we know, next time won't be a shocker.
Sorry for the long winded post, but I had to tell my Yamaha story. I really like this sled! Suspension, power, clutching, handling. There are some improvements I could do, yes, but for this boy Yamaha hooked me in again. "You have to ride one for a few days to really appreciate it, but you will."
If anyone knows any info on this sled it would be greatly appreciated (tune, clutch setup, etc). Someone on here must have owned it before!
Thanks for everyones time, and thanks to all the great info on this forum
CR racing makes a shorter sock for intakes I'm sure you can get a shorter aluminum part.I have thought about shortening the stock cr intake, would need to find a shorter filter cover too. My buddy has the EVO intake and its much smaller, the CR intake is huge I wonder if they made it like that for a reason? I have no idea