How Are Doo 850s & New Gen 4 Platform?

R

ridindirty800

Active member
ezra said:
a few stories of busted cranks with well under 100mi some less than 3 mi . from what I have seen all early builds and only a few . still sucks to be those guys
Click to expand...

I read this as well, I never have been one for first year models. When Ski Doo came out with the 1200 4 tec in 2009 I wanted one bad, but waited until 2010 to order, glad I did as even though the 2009 model was good it had small problems here and there that were taken care of in the second year build. I am sure the 2018 850 will be ironed out.
 
Last edited:
M

momoney2123

New member
When I talked to my dealer, they have not had any major issues. The biggest issue was overheating, some need to be burped. no engine or crank issues and they sold a ton of them. only 2 left
 
M

momoney2123

New member
Good post on summit belt issues.........

flatland sleds need weight to, just not as much

mine is pulling 8200 out of breakin




SKI DOO 850 BELT ISSUES!! OK, so we hear a lot about this.. Here is our take on it..



We have pounded our 850 all season in VERY deep snow.... without any belt issues..



We do have side venting and we added a vent in the belly pan in front of the primary.


NOTE-->We added these later and had no issues before..



We have removed the felt and the plastic shroud that guards the coils (lets more air in) We also have shaved the bottom of the belt shroud.



We think that the above should be done.. BUT.... The REAL issue, In our opinion, is that there is NOT enough primary pin weight installed!!



IF your dealer installed the "High Alt" pins in your primary.. REMOVE THEM and install the 16.7g pins (as delivered)..



IF you are from 3000-7500 ft ...ADD 2.5 grams to those pins..



IF you are from 7500-9500 ft add 1.5 grams.



If you are on the flats... we can only guess on what weight to add.. But probably around 3.5g added.



This engine needs to run between 7700 and 8000 RPM!! Any higher or lower and the power suffers!!! Adjust the clickers so that you are usually running 7800-7900 RPM!



Please try the above and them report back on the results
 
O

old abe

Well-known member
Is the 850 crank issue due to the pinched oil line thing??? I was at a Polaris/Doo dealer yesterday, and they said all their 850's are running really hard. No top end lag, really strong finish. Big, big difference as to 800E-Tec. G4 takes a little getting used to for some people, others not. No issues with belts, other than proper adjustment.
 
M

momoney2123

New member
old abe said:
Is the 850 crank issue due to the pinched oil line thing??? I was at a Polaris/Doo dealer yesterday, and they said all their 850's are running really hard. No top end lag, really strong finish. Big, big difference as to 800E-Tec. G4 takes a little getting used to for some people, others not. No issues with belts, other than proper adjustment.
Click to expand...

There isn't an 850 crank issue. There is ONE case of a pinched oil line that wiped everything out, along with a few other assembly mistakes. As to be expected on ANY sled, especially a whole new design not just engine. There is a good 850 issues thread going on dootalk.

People and haters will spread rumors from the same engine or crank that failed, when it catches wind I heard this, so did jimmy and they turn it into 10 crank problems all stemming from the original 1. We need a full season to truly see the masses.
 
1

1fujifilm

Well-known member
momoney2123 said:
When I talked to my dealer, they have not had any major issues. The biggest issue was overheating, some need to be burped. no engine or crank issues and they sold a ton of them. only 2 left
Click to expand...

Due to rumors of overheating I put my gauge on coolant temp to keep an eye out and have the following observations from the last two days of riding 25 to 35 degree weather; runs 105 to 113 when moving over 25ish MPH, the highest I saw was 143 driving through Houghton and Hancock slowly. Once moving it goes back to normal operating range. So far 400 miles and only adjusted belt two times; nothing else.
Hope to be broke in today as mileage is at 12 MPG for the entire 400 miles and using a quart of oil every 125 miles.

Bear

- - - Updated - - -

momoney2123 said:
There isn't an 850 crank issue. There is ONE case of a pinched oil line that wiped everything out, along with a few other assembly mistakes. As to be expected on ANY sled, especially a whole new design not just engine. There is a good 850 issues thread going on dootalk.

People and haters will spread rumors from the same engine or crank that failed, when it catches wind I heard this, so did jimmy and they turn it into 10 crank problems all stemming from the original 1. We need a full season to truly see the masses.
Click to expand...

I have done my research at Dealer and the Web and agree; a lot of hype about the same occurances. We all like to add something and it occasionally is about the story we all heard and it aggregates.

Bear
 
D

Deleted member 10829

Guest
momoney2123 said:
There isn't an 850 crank issue. There is ONE case of a pinched oil line that wiped everything out, along with a few other assembly mistakes. As to be expected on ANY sled, especially a whole new design not just engine. There is a good 850 issues thread going on dootalk.

People and haters will spread rumors from the same engine or crank that failed, when it catches wind I heard this, so did jimmy and they turn it into 10 crank problems all stemming from the original 1. We need a full season to truly see the masses.
Click to expand...

Was that in the Western UP? I heard of one several weeks ago that broke the crank in half up there with 1 mile on it. Are you saying there has only been one crank issue so far?
 
M

momoney2123

New member
mspease said:
Was that in the Western UP? I heard of one several weeks ago that broke the crank in half up there with 1 mile on it. Are you saying there has only been one crank issue so far?
Click to expand...

That's the same story I have now heard 10 times, from 10 different people

When something fails with 1 mile on it, someone made a big mistake.
 
W

whitedust

Well-known member
Yep it is early and will be interesting to see how this thread progresses. The belt and clutch adjustments are of interest as I used to peak my 2003 MXz 800 tra clutch and belt to run lakes. Clickers were cool but didn't have to that with Apex shimming was pita no real pay off. Not sure I would still want to mess with clutches and perhaps what dfattack was asking.
 
M

momoney2123

New member
Most of my group is Gas and Go, they haven't touched anything. granted not many miles but its a start

What was posted above makes a lot of sense as far as summit clutching. Remember the guys blowing belts are on summits, not trail sleds.

Ride one for a day whitedust, I promise you wont be wanting to get back on an apex.
 
O

old abe

Well-known member
Clickers are nice to give a quick tune due to weather, trail conditions, wet/heavy snow, or deep powder. They enable you to keep the RPM's at the correct level for peak performance. Nice to see them on the new P-Drive clutch. I hope the P-Drive will end up on all the Doo performance sleds at some time down the road.
 
T

tsg

Member
500+ trouble free miles with Renegade X. So far, excellent with no issues or concerns. Oil usage is a little high, but that may change in time. Everyone has a story, and an opinion, but real life experience is the best testament. Adjusted suspension per Ski Doo rmotion video, which helped for my riding style and weight. So far, so good.
 
1

1fujifilm

Well-known member
whitedust said:
Well we have had Midwest areas with good snow so 850s with Gen 4 has had some run time. Likes, dislikes positives negatives...What do think?
Click to expand...

Hello,
Another 200 mile day with the 850 ADR Renegade. Houghton to Sidnaw, hit Bruce's Crossing and Rockland and Freda Loop on the way back to Houghton. Trails were outstanding sans some gravel in the rail bed near Bruce's.
Checked my belt and Coolant but it all is fine. Feels light on its feet and loves to roll at 75 on the grades at 6800 RPM.

Bear
 
E

ezra

Well-known member
momoney2123 said:
Yep.

When something other than a clear manufacturing defect causes the crank to fail, ill be listening
Click to expand...
then the guy with 15is mi locked up so his buddy starts towing him back 2 850s down with less than 30mi between them. again early builds .
In quit buying 1st yr anything back in the ultra days .
 
M

momoney2123

New member
ezra said:
then the guy with 15is mi locked up so his buddy starts towing him back 2 850s down with less than 30mi between them. again early builds .
In quit buying 1st yr anything back in the ultra days .
Click to expand...

did you read this on the internet or was it one your 'buds'?

Do you have info on how or why this happened, or you don't care and just want to spread the word farther?
 
1

1fujifilm

Well-known member
momoney2123 said:
did you read this on the internet or was it one your 'buds'?

Do you have info on how or why this happened, or you don't care and just want to spread the word farther?
Click to expand...

I agree with MoMoney, I haven't even heard this story and I have been on every 850 thread around.

Bear
 
You must log in or register to reply here.
Top