Muskoka Freerider

pfi572

pfi572

Active VIP Member
Joined
Mar 10, 2010
Messages
6,064
Reaction score
15,262
Location
Grande Prairie
Is it just me or are these Doos losing rpm in heavy pulls .
I can hear them losing RPM and can only catch the tack from time to time and shows low ?
Just seems like room for improvements. As usual I guess .
 
kovs

kovs

Active VIP Member
Joined
Apr 12, 2009
Messages
802
Reaction score
1,048
Location
Rosetown, sask
I would think there are some mighty hot clutches On either brand with how hard he’s riding them. And you know he’s up on his servicing when it’s broke then you fix it


Sent from my iPhone using Tapatalk
 
greenthumb

greenthumb

Active VIP Member
Joined
Mar 16, 2013
Messages
600
Reaction score
2,101
Location
Shuswap
pfi572 said:
Is it just me or are these Doos losing rpm in heavy pulls .
I can hear them losing RPM and can only catch the tack from time to time and shows low ?
Just seems like room for improvements. As usual I guess .
Click to expand...
Doo's have been doing this for years. It was much worse a decade ago in 800.
Couple of things going on.
They pull timing when hot. Ambient air temp affects this too.
Poor backshift with hot clutches. Again exacerbated by warm temps and heavy snow.
 
pfi572

pfi572

Active VIP Member
Joined
Mar 10, 2010
Messages
6,064
Reaction score
15,262
Location
Grande Prairie
greenthumb said:
Doo's have been doing this for years. It was much worse a decade ago in 800.
Couple of things going on.
They pull timing when hot. Ambient air temp affects this too.
Poor backshift with hot clutches. Again exacerbated by warm temps and heavy snow.
Click to expand...
Oh I know and a good thing for the wind induction .
 
sledneck__11

sledneck__11

Active VIP Member
Joined
Jan 16, 2011
Messages
1,543
Reaction score
5,206
Location
saskatchewan
greenthumb said:
Doo's have been doing this for years. It was much worse a decade ago in 800.
Couple of things going on.
They pull timing when hot. Ambient air temp affects this too.
Poor backshift with hot clutches. Again exacerbated by warm temps and heavy snow.
Click to expand...
Also as belts start to gets some miles on them i started noticing rev fade so would usually swap belts this was really noticable on the xms
 
maxwell

maxwell

Active VIP Member
Joined
Apr 25, 2007
Messages
19,914
Reaction score
42,098
Location
Sherwood Park, Alberta, Canada
pfi572 said:
Is it just me or are these Doos losing rpm in heavy pulls .
I can hear them losing RPM and can only catch the tack from time to time and shows low ?
Just seems like room for improvements. As usual I guess .
Click to expand...


The gen5 turbo is pretty good. If you run your belt past its life span and don’t adjust the deflection every couple rides you will get some fade on the top in heavy snow


Sent from my iPhone using Tapatalk Pro
 
greenthumb

greenthumb

Active VIP Member
Joined
Mar 16, 2013
Messages
600
Reaction score
2,101
Location
Shuswap
sledneck__11 said:
Also as belts start to gets some miles on them i started noticing rev fade so would usually swap belts this was really noticable on the xms
Click to expand...
100%
I remember the old 391 belt. Doo published the specs including a service limit on the width. I'd usually hit that at around 3000km. Slapping on a new one one would be an instant 2-300 rpm gain and better consistency.
 
maxwell

maxwell

Active VIP Member
Joined
Apr 25, 2007
Messages
19,914
Reaction score
42,098
Location
Sherwood Park, Alberta, Canada
so whos keeping track of what sleds matt has? i thought he always got two new ones every season.

now ive seen

146 Lynx
old 9R 154
New Boost 154
Old 154 Turbo R

what happened to the 165 G5?
 
FranktheTank

FranktheTank

Active VIP Member
Joined
Dec 26, 2008
Messages
624
Reaction score
1,230
Location
Regina/Bc
pfi572 said:
Why isn’t the so called sensor on the drive system protecting the belt ?
Was a big selling gimmick so no more blown belt.
Click to expand...

The sensor is there to tell you what the ambient air temp of belt compartment is. It could be alarming people aren’t noticing perhaps? It will show up in the buds report.l regardless. People taping the throttle to the bars in headlight deep pow with 70mph track speed on a 146 turbo no alarm is going to protect that belt


Sent from my iPhone using Tapatalk
 
maxwell

maxwell

Active VIP Member
Joined
Apr 25, 2007
Messages
19,914
Reaction score
42,098
Location
Sherwood Park, Alberta, Canada
pfi572 said:
Why isn’t the so called sensor on the drive system protecting the belt ? 🙄
Was a big selling gimmick so no more blown belt.
Click to expand...

i wouldn't want the sled to limp in a belt overheat situation. I will decide if i want to destroy my 300$ belt.

Its up to the operator to watch their temps, the sensor is just a tool in the toolbox. That being said, you can blow a belt and not be in belt heat alarm. Things happen
 
snopro

snopro

Active VIP Member
Joined
Mar 3, 2009
Messages
102,083
Reaction score
91,197
Location
Milo,Alberta
maxwell said:
i wouldn't want the sled to limp in a belt overheat situation. I will decide if i want to destroy my 300$ belt.

Its up to the operator to watch their temps, the sensor is just a tool in the toolbox. That being said, you can blow a belt and not be in belt heat alarm. Things happen
Click to expand...
Careful what you say. I got in trouble for saying “sometimes chit happens” in another thread. There is a reason for everything. Trust me. 😂
 
Lunch_Box

Lunch_Box

Active VIP Member
Joined
Oct 25, 2007
Messages
1,470
Reaction score
5,927
Location
Leduc County
maxwell said:
so whos keeping track of what sleds matt has? i thought he always got two new ones every season.

now ive seen

146 Lynx
old 9R 154
New Boost 154
Old 154 Turbo R

what happened to the 165 G5?
Click to expand...

I asked that as well. He still has the 165 G5, so looks like he has 5 sleds out west in Revy.
 
G

gedakbx

Active VIP Member
Joined
Feb 26, 2010
Messages
1,018
Reaction score
1,922
Location
central alberta
Could the 146"s shift out fully (due to gearing) when they are doing all their flips and what not causing the belt to bottom out in the secondary, thus ruining the belt?
 
You must log in or register to reply here.
New posts

Similar threads

Catman10
My G5 build, fixing doo’s shortcomings and creating the perfect monster.
    • Like
2 3 4
Replies
64
Views
10K
shafty85
S
REV2XHEART
Whining Sound from new sled
2
Replies
28
Views
4K
Caper11
Caper11
Teth-Air
TYT UV8000D/E Radios with Repeater Function
    • Like
Replies
14
Views
3K
X-it
X
Summitric
Study Calculates EVs Have Higher 'Real World Refueling Cost' Than Gas Vehicles
Replies
18
Views
5K
jhurkot
jhurkot
RGM
Using a Baofeng with BCA orother FRS radios
    • Thanks
    • Like
2
Replies
24
Views
12K
RGM
RGM
Top Bottom