Base it on your weight, elevation, track, and most important what RPM is YOUR sled reaching now
I think the lighter guy can get away with 2 teeth were the heavier guy may only want to go one.
But every rider/sled is slightly different....
I think the lighter guy can get away with 2 teeth were the heavier guy may only want to go one.
But every rider/sled is slightly different....
Topgun
Expert
Gearing I'm sure will definitly help this sled. We were out yesterday for a ride and my Nitro with the Heelclicker setup is definitly coming around. On long straight 1000 foot runs on a hardpack snow creek the Nitro was holding it's own. 08 136x1.25 800 r and older 03 f7 , 08 700 Switcher, pretty good company. These were roll on's also, not out of the hole. Outta the hole would definitly help me but regardless these sleds on a roll on needed a 1000 feet to not see me beside them.
On another note. I was told on the Yamaha you will never use all of the primary...............is that true? I've got about another 1/8 inch left at the top not being used now.
On another note. I was told on the Yamaha you will never use all of the primary...............is that true? I've got about another 1/8 inch left at the top not being used now.
it all about government regulation and legal issues we are going to upgrade the apex in 09 we will have to see how yammi get around this with there new sled you do not have to look far to see this play a role08NitroRTX said:
2005 machz1000 2006 and 2007 all need the clutch pins but in at the dealer and now the same thing cat f100 and with the 800r once these sled are clutch there are fast as hell
it all about government regulation and legal issues we are going to upgrade the apex in 09 we will have to see how yammi get around this with there new sled you do not have to look far to see this play a role08NitroRTX said:
2005 machz1000 2006 and 2007 all need the clutch pins put in at the dealer and now the same thing cat f1000 and with the 800r once these sled are clutch there are fast as hell
gormleyflyer2002
TY 4 Stroke Junkie
can someone that has added a tooth ? do you need the longer chain also.....? my dealer is saying yes but I thought I heard different........?
some will tell you that you don't...
we put a bigger chain because we didn't know where we would end in our gearing
we put a bigger chain because we didn't know where we would end in our gearing
gearing up two teeth won't do anything for you.gearing up one tooth is all that motor will pull if you go out two teeth you won't be able to even come close to shift ing out the clutches all the way.
On the 120 engines.I gained 5 mph gearing down from 22-38 to 21-38 along with gained accelleration.With 21-38 I was able to run 111.9mph actual speed and that wasn't shifted out all the way the dream meter was flashing between 122-124mph.
On the 120 engines.I gained 5 mph gearing down from 22-38 to 21-38 along with gained accelleration.With 21-38 I was able to run 111.9mph actual speed and that wasn't shifted out all the way the dream meter was flashing between 122-124mph.
parkindale
Extreme
I currently have 1 more tooth on top & 1 less on the bottom gear and it still pulls as hard or harder than it did when it was stock. I understand what your saying about 2 or more teeth on top,but if i were to add 2 teeth on top & 1 less on the bottom what would that do for top end #'s ?pro116 said:
parkindale said:
On glare ice in perfect conditions you may see some higher #'s but still won't shift out all the way.You will have better gas milage.
NyTrOMaNIaC
TY 4 Stroke Master
OK, now I'm REALLY confused... 
I thinks I'll just leave her alone for now, BIG Nor'easter a brewin, followed by drifts and POWDER !!!
I thinks I'll just leave her alone for now, BIG Nor'easter a brewin, followed by drifts and POWDER !!!
Unluckydiablo
Expert
Glad I'm not the only one.
08nytro23
Newbie
- Joined
- Dec 27, 2007
- Messages
- 6
i was driving a nytro rtx in the grass with 144 picks and a little clutching.
we were racing everything 08 800r 08 crossfire 1000 they all had equal tunining and in 550ft nothing could touch the nytro!! i know someone who has a xp 600r with 7 miles and it needs a new suspension and track and he was just riding around a field. i was there it was funny. track tension was good before we took it out to thats the funny thing!!!!
we were racing everything 08 800r 08 crossfire 1000 they all had equal tunining and in 550ft nothing could touch the nytro!! i know someone who has a xp 600r with 7 miles and it needs a new suspension and track and he was just riding around a field. i was there it was funny. track tension was good before we took it out to thats the funny thing!!!!
Reaper
TY 4 Stroke Junkie
- Joined
- Nov 10, 2005
- Messages
- 667
- Location
- Starbuck, Manitoba
- Country
- Canada
- Snowmobile
- 2014 SR Viper XTX. COTC, Hygear 141 pro link.
clutching and gearing is a dark art.
pro116 know's his poop !
pro116 know's his poop !
I agree with pro116, and yes he does know what's going on! But the FX Nytro makes about 20 more HP and weighs less.
Like everything else, one setting, ratio, size (whaterever) doesn't fit all! For some 2 tooth change may work for others it may not.
Like everything else, one setting, ratio, size (whaterever) doesn't fit all! For some 2 tooth change may work for others it may not.
unpride
Expert
Does the Nytro have the same gears as any previous year Yamaha? Or are they a specific Nytro part. I was going to try to find some on Ebay so I could play around.
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