tundra
TY 4 Stroke Junkie
look, first time i see that amount of Fresh powder.
2 feet at base, and over 5 feets on top, very very soft powder.
No one has try this trail this winter. First footprint, very very deep.
I'snt my RX-1 on pic, mine as to go after, to high ratio, 23-40, motor has a hard time. Before this point, we going uphill in trail for about 10 min at WOT, to much snow to take it easy. I start climbing at 9800 rpm and 7000 rpm near end, and not a big hill, long but not hard. For this small trail, i most give the lead to the better setup snowmobile.
I will swap my 23 for my original 21. Dealer here put 23 and are sure that ok, but i guess he have'nt seen a RX-1 in that much snow.
But, he go every where MC goes.
2 feet at base, and over 5 feets on top, very very soft powder.
No one has try this trail this winter. First footprint, very very deep.
I'snt my RX-1 on pic, mine as to go after, to high ratio, 23-40, motor has a hard time. Before this point, we going uphill in trail for about 10 min at WOT, to much snow to take it easy. I start climbing at 9800 rpm and 7000 rpm near end, and not a big hill, long but not hard. For this small trail, i most give the lead to the better setup snowmobile.
I will swap my 23 for my original 21. Dealer here put 23 and are sure that ok, but i guess he have'nt seen a RX-1 in that much snow.
But, he go every where MC goes.
My RX-1 Works
Veteran
Gearing and Clutching
Tundra I ride in real deep snow of the B.C. coast mountains,were it can snow 5 or 6 ft per week.Believe me I know deep!! To ride in the deep stuff with a stock engine you need all the track speed you can get, and to achieve this a gear down is required. My machine is geared down as much as possible. My gear down is 19/43 ,and I am using 7 tooth drivers.Please read my reply on clutching for a detailed description. I use a 39 gram weight and very soft spring, 15kg preload and 2.25kg/mm spring rate.Team clutch with 34 degree straight cut helix. The sled will still go 75 mph and accelerate like it has a JATO pak strapped to it!! Make some simple changes and the competition will be blown away. REMEMBER MY RX-1 WORKS!!!
Tundra I ride in real deep snow of the B.C. coast mountains,were it can snow 5 or 6 ft per week.Believe me I know deep!! To ride in the deep stuff with a stock engine you need all the track speed you can get, and to achieve this a gear down is required. My machine is geared down as much as possible. My gear down is 19/43 ,and I am using 7 tooth drivers.Please read my reply on clutching for a detailed description. I use a 39 gram weight and very soft spring, 15kg preload and 2.25kg/mm spring rate.Team clutch with 34 degree straight cut helix. The sled will still go 75 mph and accelerate like it has a JATO pak strapped to it!! Make some simple changes and the competition will be blown away. REMEMBER MY RX-1 WORKS!!!
RX-1MTN
Extreme
- Joined
- Nov 27, 2003
- Messages
- 115
- Age
- 48
- Location
- Dillon Montana
- Website
- www.beaverheadmotors.com
- Country
- USA
- Snowmobile
- 2015 VIPER MTX
There is no way in hell an RX-1 MTN will keep up with a MC 900 151,159,162 been there and they walked circles around the RX-1Tons!!!! I should know because I ride a 1 ton and I ride with MC's!!
KbxSrx
TY 4 Stroke Guru
rx mountain video base
couldnt agree more, I dont think that with a 162, perfect clutching and gearing that we can keep up with a mc900. If you dropped 80 lbs, maybe. With turbo, sure, but the mc can be turboed too.
couldnt agree more, I dont think that with a 162, perfect clutching and gearing that we can keep up with a mc900. If you dropped 80 lbs, maybe. With turbo, sure, but the mc can be turboed too.
RX-1MTN said:
I respectfully disagree. I rode all year last year with 900 Cats and 800 Doos. My sled had NO problems keeping up with them.
tundra
TY 4 Stroke Junkie
look at this one
the MC900 is better i think because is lightweight, but he is stock one feet behind the Rx-1
the MC900 is better i think because is lightweight, but he is stock one feet behind the Rx-1
My RX-1 Works
Veteran
Riding with the 800 and 900's
I am sensing alot of anger and frustration in this forum with regards to the RX-1. Lets get a few details straight, first the stock machine came running like a stock 97 700MM with a 136 inch track. Secondly if changes are made to the sled they could be for the better or worse, it is not that hard to make the RX-1 run worse than it goes stock. But if the best possible changes are made then you can play with the boys with the 800-900 CC machines and not get stuck in the process. I never said that it could high-mark every machine. The competition is blown away to see that the RX-1 can get the job done and it doesn't have to be the dog on the hill. I am just an independant Yamaha enthusiast trying to get the most performance for the least amount of money. I have spent 35 days on the RX-1 testing and tuning. If my clutching and gearing specs help one person I would be pleased.
I am sensing alot of anger and frustration in this forum with regards to the RX-1. Lets get a few details straight, first the stock machine came running like a stock 97 700MM with a 136 inch track. Secondly if changes are made to the sled they could be for the better or worse, it is not that hard to make the RX-1 run worse than it goes stock. But if the best possible changes are made then you can play with the boys with the 800-900 CC machines and not get stuck in the process. I never said that it could high-mark every machine. The competition is blown away to see that the RX-1 can get the job done and it doesn't have to be the dog on the hill. I am just an independant Yamaha enthusiast trying to get the most performance for the least amount of money. I have spent 35 days on the RX-1 testing and tuning. If my clutching and gearing specs help one person I would be pleased.
KbxSrx
TY 4 Stroke Guru
35 days clutching
hey Works- I read EVERY post there is about RX1 mtn setup for the hills, and am still fighting to make my budget hawg work, so please whatever you do, dont stop posting. I for one appreciate any help I can get.
I drove 12 hours one way to look at the demo RX1 and hated it. I was so pissed at Y for this joke of a mtn sled. After going to the hills 2 times last year, I decided that I was going to quit altogether, or get s flatlend sled. I ended up getting the RX1 because of the reports on WWW.TOTALLYAMAHA.COM. Guys love a lot about it, hate a lot about it. I soon discovered that there still is no snow in Alberta, so back to the mountains I go. The rx is fine in deep snow, fine climbing, terrible climbing in deep snow. I need all the help I can get, without turbo, the posting I do is not hatred, its frustration.
All in all, I guess what I have now is all I am probably ever going to have with the Y hawg, without uber money. I am listening Works, I am sure that your clutching (and everyones) will help.
hey Works- I read EVERY post there is about RX1 mtn setup for the hills, and am still fighting to make my budget hawg work, so please whatever you do, dont stop posting. I for one appreciate any help I can get.
I drove 12 hours one way to look at the demo RX1 and hated it. I was so pissed at Y for this joke of a mtn sled. After going to the hills 2 times last year, I decided that I was going to quit altogether, or get s flatlend sled. I ended up getting the RX1 because of the reports on WWW.TOTALLYAMAHA.COM. Guys love a lot about it, hate a lot about it. I soon discovered that there still is no snow in Alberta, so back to the mountains I go. The rx is fine in deep snow, fine climbing, terrible climbing in deep snow. I need all the help I can get, without turbo, the posting I do is not hatred, its frustration.
All in all, I guess what I have now is all I am probably ever going to have with the Y hawg, without uber money. I am listening Works, I am sure that your clutching (and everyones) will help.
tundra
TY 4 Stroke Junkie
Personnaly, i'm impressed from my RX-1 mountain, not because is the king of the hill, is'nt. Yamaha think and sold this sled to compete (stock) with other, but Yamaha is somewhat on another planet. Let's face it, RX-1 rock for a heavy 4-stroke mountain sled, we all compare our sled with other big iron, but compare a 4-stroke with a light 2-stroke, is like compare a cat with a wildcat, they are bot in the same family, but not in the same league.
But my point is, my RX-1 mountain go almost everywhere i want it to go, but really need improvement like everybody said. :wink:
And i'm agree with KBXSRX keep posting improvement
But my point is, my RX-1 mountain go almost everywhere i want it to go, but really need improvement like everybody said. :wink:
And i'm agree with KBXSRX keep posting improvement
KBX,
What changes have you made so far and what are your biggest complaints? Also what is your budget.
There are a number of things that can be done to increase your performance and they don't all cost an arm and a leg.
Tell us what you have done so far and I'm sure we can help you improve. The RX Mtn is a great sled with a little massaging.
What changes have you made so far and what are your biggest complaints? Also what is your budget.
There are a number of things that can be done to increase your performance and they don't all cost an arm and a leg.
Tell us what you have done so far and I'm sure we can help you improve. The RX Mtn is a great sled with a little massaging.
tundra
TY 4 Stroke Junkie
Spray, i need help too :roll: :wink:
For now, i hav'nt do anything, but tonight i will put my extrovert + 21 tooth gear to replace my stock 23.
After that, where i start in low cost modification ?
thanks
I ride mostly between 900 and 3000 feets
For now, i hav'nt do anything, but tonight i will put my extrovert + 21 tooth gear to replace my stock 23.
After that, where i start in low cost modification ?
thanks
I ride mostly between 900 and 3000 feets
My RX-1 Works
Veteran
Low Budget Performance
Yes Tundra the 21 tooth gear will work better than a 23. More torque multiplication, it is like free power from the motor. Geared even lowwer even better, but gears are fairly expensive so if you do ever gear it lowwer for more performance go all the way and save money for some other mods.Bang for the buck the primary clutch is the place to start. The power increase is huge from 7000 to 10,400 RPM , I don't have a dyno sheet handy but lets take a stab at somewhere around 50HP. For about $250 Canadian you could be pleasanly suprised at the performance change.
Weights : Yamaha 8EK-00
Spring Shims : 4 size 1MM
Spring: Yamaha short spring White/Gold/White
Rivets inner: 17.2MM steel
Rivets outer: 10.3MM steel
Rollers from short track RX-1
Please try this combination, it is money well spent. You will be able to at least enjoy the engines very broad power curve. Because the machine is not really geared down make sure the secondary clutch is at 80-90degrees to slow the upshift , and help the secondary backshift. Then start saving for gears.
Yes Tundra the 21 tooth gear will work better than a 23. More torque multiplication, it is like free power from the motor. Geared even lowwer even better, but gears are fairly expensive so if you do ever gear it lowwer for more performance go all the way and save money for some other mods.Bang for the buck the primary clutch is the place to start. The power increase is huge from 7000 to 10,400 RPM , I don't have a dyno sheet handy but lets take a stab at somewhere around 50HP. For about $250 Canadian you could be pleasanly suprised at the performance change.
Weights : Yamaha 8EK-00
Spring Shims : 4 size 1MM
Spring: Yamaha short spring White/Gold/White
Rivets inner: 17.2MM steel
Rivets outer: 10.3MM steel
Rollers from short track RX-1
Please try this combination, it is money well spent. You will be able to at least enjoy the engines very broad power curve. Because the machine is not really geared down make sure the secondary clutch is at 80-90degrees to slow the upshift , and help the secondary backshift. Then start saving for gears.
Works,
50HP? I have never heard anyone make that bold of a claim from clutching. That would be quite an increas in track HP. Probably 70%. I find that a bit hard to beleive.
Others,
Here are some low budget ideas:
Gut the stock exhaust. Will save you between 7 and 10 pounds and should cost very little or nothing if you have the equipment to do it yourself.
Install MPI weight transfer kit. Saves 5 pounds and improves weight transfer. Cost is $50
Remove front tool/storage box and any unecessary tools. For example you don't need the 22 mill wrenches if you have the weight transfer kit. Saves 4-6 lbs. Cost $0
Light weight battery. There have been many discussed on this forum. Depending on battery chosen you should save 7 to 10 pounds. Cost will depend on battery chosen but should be no more than $100
Relocate battery to nose of sled. This gets the battery down lower to help lower center of gravity and allows you to remove the stock battery bracket. This gives you much easier access to the oil filter for changes and saves about 2 lbs from removing the bracket. Cost $0
The above should save you roughly 25 to 33 pounds and cost no more than $200.
Another thing that would be a great upgrade would be VERY beneficial would be a 159. It's not as expensive as it seems if you sell your 151 track after removal.
Another idea is the ECP filters. There have bee a few that have struggled with them, but others are claiming good HP increases and it saves about 5 pounds. That is pretty good for $100.
Hope some of these ideas help.
50HP? I have never heard anyone make that bold of a claim from clutching. That would be quite an increas in track HP. Probably 70%. I find that a bit hard to beleive.
Others,
Here are some low budget ideas:
Gut the stock exhaust. Will save you between 7 and 10 pounds and should cost very little or nothing if you have the equipment to do it yourself.
Install MPI weight transfer kit. Saves 5 pounds and improves weight transfer. Cost is $50
Remove front tool/storage box and any unecessary tools. For example you don't need the 22 mill wrenches if you have the weight transfer kit. Saves 4-6 lbs. Cost $0
Light weight battery. There have been many discussed on this forum. Depending on battery chosen you should save 7 to 10 pounds. Cost will depend on battery chosen but should be no more than $100
Relocate battery to nose of sled. This gets the battery down lower to help lower center of gravity and allows you to remove the stock battery bracket. This gives you much easier access to the oil filter for changes and saves about 2 lbs from removing the bracket. Cost $0
The above should save you roughly 25 to 33 pounds and cost no more than $200.
Another thing that would be a great upgrade would be VERY beneficial would be a 159. It's not as expensive as it seems if you sell your 151 track after removal.
Another idea is the ECP filters. There have bee a few that have struggled with them, but others are claiming good HP increases and it saves about 5 pounds. That is pretty good for $100.
Hope some of these ideas help.
My RX-1 Works
Veteran
Okay now I have a dyno sheet on the 03 RX-1 DEC 2002 it reads as follows 101HP at 7000 RPM , Yamaha claims over 145 at peak , I said I didn't have a dyno sheet at the time. Call me a liar 44 HP or more, not 50.
