Belt / secondary

[eddie738]

New to Yamaha. Just bought an 05 Warrior. While out riding, when you let off the throttle, and when approaching stop, it feels like the brake is on. It is not applied. When checking the belt and clutches, Noticed the belt riding 1/4" below secondary sheave height. Adjusted secondary for proper belt height. replaced secondary and belt. Ran the sled on a lift. Primary seemed to function good, but the secondary will not push the belt to the preset limit at the top. The belt only returns to 1/4" from the top of secondary.

ANY THOUGHTS???

 

[WarriorBeads]

I believe my belt sits approx. the same as you describe... The 'brake' effect you describe is likely the 'engine brake' effect from the fact that it's a 4-stroke. This is normal and once you get used to it, it's kind of neat...No need to break going into a corner most of the time.

Welcome to the site.

 

[eddie738]

I believe my belt sits approx. the same as you describe... The 'brake' effect you describe is likely the 'engine brake' effect from the fact that it's a 4-stroke. This is normal and once you get used to it, it's kind of neat...No need to break going into a corner most of the time.

Welcome to the site.

Ok. But why doesn't the belt return to proper height in the secondary?
Also, I can not roll the sled either. I tried to roll the sled backwards after putting it on the trailer and it would not budge. Had to pick the rear up to give it a little pull.

 

[Grimm]

Maybe you need to add another set of washers to get the belt higher.

As far as the sled not rolling, it could be a number of issues.

The track may be too tight putting too much pressure on the suspension, requiring more force to move it. Loosening the track tension may help.

A lot of new tracks aren't fully clipped as the manufacturers are trying to save productions costs. Rubber on the sliders have greater friction on the sliders versus the metal clips.

Is your suspension in order? Check and replace bearings that are rough and make sure your suspension is fully greased up and functional (not binging).

 

[eddie738]

Maybe you need to add another set of washers to get the belt higher.

As far as the sled not rolling, it could be a number of issues.

The track may be too tight putting too much pressure on the suspension, requiring more force to move it. Loosening the track tension may help.

A lot of new tracks aren't fully clipped as the manufacturers are trying to save productions costs. Rubber on the sliders have greater friction on the sliders versus the metal clips.

Is your suspension in order? Check and replace bearings that are rough and make sure your suspension is fully greased up and functional (not binging).

I quess I wasn't clear. With the secondary off the sled, the secondary is shimmed and the belt rides above the secondary. When I install the secondary and the belt back on the sled, and run the sled the belt will not complete its downshift and the belt then only comes 1/4" from the top of the secondary. I am thinking its might be a broken spring, but looking for ideas before I tear it apart.

 

[eddie738]

just found this thread

http://www.ty4stroke.com/viewtopic.php?t=3093

This is the same problem I am having.

Eddie738

 

[Grimm]

It could be that the clutches are out of alignment and/or the center to center distance between the clutches is too great. Each could cause the tension on the belt be too great for the belt to come to the top of the secondary.

When you run the sled on a lift, does the track move? It may be a sign of the above scenarios.

Do a search on clutch alignment and see how you can check yours.

 

[eddie738]

It could be that the clutches are out of alignment and/or the center to center distance between the clutches is too great. Each could cause the tension on the belt be too great for the belt to come to the top of the secondary.

When you run the sled on a lift, does the track move? It may be a sign of the above scenarios.

Do a search on clutch alignment and see how you can check yours.

When this happens, the primary fully opens and the secondary does NOT fully close. That leaves the belt hanging with no contact with the primary.

 

[Grimm]

Have you taken apart your secondary and cleaned it out? What setting (in degrees) are you using? I think 60 degrees is stock, however I'm not sure about that. Maybe playing with some different settings might help.

 

[yamadog1]

belt deflection

i had same problem there is to much drag on skid,in snow it will come up to the top.

 

[craze1cars]

I think Yamadog is likely right. Mine will act like this on a track stand....it is not necessarily a sign of a problem...works just fine when running in the snow. With proper snow lube and the motion carried forward from the sled it always comes to the top nicely.

Certainly is worth making sure your track tension and alignment is correct, and check all bearings for excessive drag. Belt deflection is a little wierd to set on these Yamis compared to other brands. I've found it best to belt deflection only after you've run it in snow and coasted to a stop, which brings the belt all the way to the top. THEN lift the rear and assess how tight the belt is and adjust from there.

 

[yamahajunkie]

take the 3 nuts off the helix and check if its twisted the right way.

 

[VT_BluYamaha54]

Belt should sit even or slightly above the secondary when all is OK.
Are you sure the belt is the correct one? Is it a Yammi belt or aftermarket?
Can you measure the circumference of the belt and also the width and let us review. What is the Center-to-Center distance?

Could the PARKING BRAKE be misadjusted?

 

[eddie738]

Belt should sit even or slightly above the secondary when all is OK.
Are you sure the belt is the correct one? Is it a Yammi belt or aftermarket?
Can you measure the circumference of the belt and also the width and let us review. What is the Center-to-Center distance?

Could the PARKING BRAKE be misadjusted?

OK, to everyone watching this topic. The clutches are properyl aligned, the belt is adjusted to spec, the belt is to spec, etc... The problem WAS drag coming from a bad drive bearing. It was causing a tremendous amount of drag that the secondary was reading ane thus the secondary was not acting properly. Problem solved!!! Thanks to all