I went back to my thread "top speed of RX-1" Ther was a lot of post on that subject ""THANK YOU"" Suisse Sledder, You made it a lot easier for me to go back on some older post. Going by the speedo the WARRIOR and RX-1 will top out from 110-140 mph. Thats to big of a difference,,One or two guys said they hit 135-140 in perfect conditions, and others said no matter what they did they couldn't top 113-116 by the speedo. It didn't seem to make much difference how it was clutchd or if it had the ECP kit. One thing that did stand out was the ECP didn't help the top end at all. But some did say it got ther faster with the kit. So I got to thinking If how you brake in the sled could make some defference..All you guys that was toping out over 125 mph or more by the speedo how did you brake in your sleds??? I know it could still just be the condition's. BUT if the brake in could help how my new sled runs I would like to know...
Mighty
TY 4 Stroke God
- Joined
- Apr 17, 2003
- Messages
- 4,794
- Age
- 62
- Location
- Grand Ledge Michigan USA!
- Country
- USA
- Snowmobile
- 22 Mach Z
23 Sidewinder SRX
Break her in hard. No real long extended full throttle shots but do get on it. You don't want to get the new parts too hot. I also didn't cruise at the same rpm's very long. Vary the throttle with many full throttle shots and then let her back down with her engine braking. The hardest thing to do is to not start her up 5 times a night for your buddies to hear that sweet music before she's broken in, fight that temptation 

YamahaRx-Warrior
Expert
I have ran mine to the bar for miles and have seen 130 spedo speed with a ecp kit. Dad was all stock same speed i was a few hundred feet behind him.
QCRider
TY 4 Stroke Master
This has been posted several times before, but if you read it, everything he writes makes a lot of sense to me.
http://mototuneusa.com/break_in_secrets.htm
http://mototuneusa.com/break_in_secrets.htm
Yellowknife
TY 4 Stroke Master
QCRider said:This has been posted several times before, but if you read it, everything he writes makes a lot of sense to me.
http://mototuneusa.com/break_in_secrets.htm
Has Anyone used this method for their RX?

RobX-1
VIP Member
- Joined
- Apr 13, 2003
- Messages
- 2,252
- Location
- Coldwater, OH
- Country
- USA
- Snowmobile
- 18 50th Apex XT-X, 08 40th Apex LTX GT, 08 40th Nytro RTX, & 03 RX-1
As mentioned earlier, this was covered in-depth in previous posts. I did a search and will attach a few of those posts for your review. In them, you wil hear pros and cons of Motoman's method as well as other recommendations. Enjoy... :exc:
http://www.rx1.info/viewtopic.php?t=1658
http://www.rx1.info/viewtopic.php?t=3761
http://www.rx1.info/viewtopic.php?t=3783
http://www.rx1.info/viewtopic.php?t=1658
http://www.rx1.info/viewtopic.php?t=3761
http://www.rx1.info/viewtopic.php?t=3783
snowman
Extreme
I have a stock blue rx-1 mtn with 14500 kms and i broke it in the way mototune says and i see 185kph on top end.
black john
TY 4 Stroke Guru
break in
did mine by the book and untill i had some carb problems i would run 135-140+ on the dream meter just about any time
did mine by the book and untill i had some carb problems i would run 135-140+ on the dream meter just about any time

Bob Miller
TY 4 Stroke Master
- Joined
- Apr 19, 2003
- Messages
- 1,322
- Location
- New Milford CT
- Country
- USA
- Snowmobile
- Present Sled: 2011 Yamaha Apex 128
I broke mine in the Motoman way and the fastest I have seen on the speedo was 120 MPH, I have a Warrior.
Black John did you see these top speeds with stock clutching or with some changes? 8)
Black John did you see these top speeds with stock clutching or with some changes? 8)
QCRider
TY 4 Stroke Master
I really don't understand people comparing what they see on a speedo. One speedo to the next will not read the same numbers at the same speed. GPS, or Radar MAYBE, but even then if it is not on the same day within 5 minutes of each other in the same condtions comparisons are almost impossible.
YamahaRx-Warrior
Expert
my warrior has a top speed of 118 mph on my gps fastest I have ever seen on the spedo has been 129 on my warrior and previous rx-1.
black john
TY 4 Stroke Guru
speed
bob i seen those speeds before clutching on a long run thats when i started to do clutching and was able to pull those speeds in a mutch shorter distant. when you have some potental it will show up some were the its up to the operator to do the clutching it put it were you can use it to your best use . ie top speed , drag raceing , ovel raceing, cruseing, etc,etc there is no all porpose clutch set up.one has to set up for there own riding condtions . this year for most of the year i ran a comet four pro this is an exelant clutch and veay esay to set up.well thats all for now i am of to take the carbs apart to see what is going on and why they dont seem work as they are intended to
bob i seen those speeds before clutching on a long run thats when i started to do clutching and was able to pull those speeds in a mutch shorter distant. when you have some potental it will show up some were the its up to the operator to do the clutching it put it were you can use it to your best use . ie top speed , drag raceing , ovel raceing, cruseing, etc,etc there is no all porpose clutch set up.one has to set up for there own riding condtions . this year for most of the year i ran a comet four pro this is an exelant clutch and veay esay to set up.well thats all for now i am of to take the carbs apart to see what is going on and why they dont seem work as they are intended to
sledheadgeorge
TY 4 Stroke God
don't forget the stock Warrior has different gears than the rx-1
black john
TY 4 Stroke Guru
speed
yes the warrior has a little differnt gearing 23-38 as the rx 1 is 24-38 only one tooth this is worth about 3-4 mph if a given sled will pull to the top of its gearing and this is only on paper
yes the warrior has a little differnt gearing 23-38 as the rx 1 is 24-38 only one tooth this is worth about 3-4 mph if a given sled will pull to the top of its gearing and this is only on paper
Condidtions dictate RX-1 top speed more then anything. Because it's a little heavy, any lose snow hurts it big time. The RX loves glare ice and hard packed roads. It can be a 20 to 30 mph diffence running the same distances on those conditions comparied to loose snow. when my 121 RX-1 was stock I hit 137 on the speedo on a iced road. I changed to 24/40 gears and would run 130 all day on the speedo. In loose snow it only pulls 112.
Similar threads
- Replies
- 4
- Views
- 1K
-
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.