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Keep Flat Spotting Belts - 07 iq 600

T

TheBreeze

Well-known member
We have a family 2 up '07 600 iq that is primarily ridden by my mom. On occassion, the sled will just smoke the heck out of a belt. It acts like something seizes up in the drive line or something. From a dead stop it just wont move, and just flat spots the belt billowing smoke, and peeling rubber from the belt. It has been taken to the dealership 2 times with them not finding anything. Its pretty frustrating, as the sled only has 400 miles, and the problem is somewhat random.

Any thoughts?

I am lacking knowledge when it comes to the Polaris, especially a IQ touring sled.
 
We have a family 2 up '07 600 iq that is primarily ridden by my mom. On occassion, the sled will just smoke the heck out of a belt. It acts like something seizes up in the drive line or something. From a dead stop it just wont move, and just flat spots the belt billowing smoke, and peeling rubber from the belt. It has been taken to the dealership 2 times with them not finding anything. Its pretty frustrating, as the sled only has 400 miles, and the problem is somewhat random.

Any thoughts?

I am lacking knowledge when it comes to the Polaris, especially a IQ touring sled.

Next time it happens, check for;

1) Stuck or accidentally applied parking brake

2) lift the rear of the sled , see if you can rotate the track

3) Remove the chain case cover, see if there's a broken bolt/tension-er block that jams the chain/sprocket
 
I can definitely rule out the parking brake. I agree something must be binding, and it seems to get worse with heat??? Ill take a look at the chaincase and secondary. Ill take a look at the weights as well but I would sure hope the factory wouldn't mess up that bad....
 
Check the chaincase gearing, high gearing builds clutch heat when riding 20-40mph. 22/40 works great.
 
As Kraven mentioned, try to rule out a "sticking brake caliper" not just a E-brake on.

Easy test, next time it feels like it is bound up, stick a screwdriver in between the brake pads and pry them apart.

I have personally seen this happen 2 times. 06 and an 07.

how often is this happening?
 
Also check the bearning on the driveshaft on the clutch side of the sled. It may be starting to seize up. Like was said, when it acts up next time, try to move the secondary with your hand to roll the machine. Most like you won't be able to do so. now rock it back and for to see if the jackshaft and brake rotor rotate AT ALL like 1/4". If not, it's probably the brake. If they do, it's in the chaincase or driveshaft.
 
It has happened probably 10 or 12 times in the 400 total miles on the sled. It is not ridden very often. I have put some of those miles on the sled and have never flat spotted a belt. It always seems to happen the most when my mom rides it. She is a 25-30 mph trail cruiser.

When it flat spotted a belt this last weekend, I was not able to turn the secondary at all. I put the sled on its side, and the track freed up, as did the secondary. I do not think it is the hifax sticking, but i am not ruling it out.

What causes the brakes to stick?
 
Betting it was a mild stick of the slides then. Tipping it up on edge broke them lose. When a brake caliper sticks, it usually stays stuck. Put a set of scratchers on her sled and see what happens. That kind of slow steady trail riding is brutal on slides. Especially at constant speeds vs someone that is on and off the throttle spinning the track. Look and see if there is any melted hifax wear built up on the track clips. Bet there is some globs still there.
 
If she is riding that slowly, you need to put a primary spring in with a 120 starting poundage, and have the primary belt to sheave clearance adjusted to no more than .020". What happens is that at those slow speeds the primary is not fully engaged because of the higher engagement spring, and excessive belt to sheave clearance. (They are never right from the factory). The belt slips, creates heat, and it is a compounded issue, as the belt and clutch get hotter and hotter, until the belt slips completely. Also, go to a 160/240 secondary spring to force the secondary to stay in low gear for a longer period. The belt deflection must be 1.25" no more, and adjust the engine torque stop tight, no gap. Use the 3211080 belt.
 
^^'1080 belts are narrower and weaker. '1122 belts are better overall.
 
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