Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[sharagan]

Hi Red Clay,

thanks for the suggestion. Yes, the belt runs perfectly centered on the motor pulley and I even managed to check the alignment also of that pulley with the laser, all good there.

With everything centered and aligned, the belt simply runs at the lip with no teeth visible between the belt and the lip of the wheel pulley.

The only thing I can think of at the is point is axial offset....should I try to put spacers between the pulley and the wheel?

regards

[Red Clay]

Don't narrow to "only" because there could be more than one thing wrong.

These belts are finicky and each person has developed their own method of dealing with the madness. I stop at "almost" centered, then, off the stand and after some torque: centered. Learning this took a lot of stopping and re-adjusting. 

Are you able to ride, adjust, ride etc, until it centers?

Axial offset?? Note that the wheel runs on the combination of 5 pieces: left spacer, two inner bearing rings, inner spacer, and mpi spacer; all pinched together by the axle bolt. The axle bolt has play inside of the spacers to enable removal of the bolt. At times, the 5 pieces "settle" out of alignment when you apply torque.

I would not add more spacers.

Are your swingarm bearings in good condition?

There are not many pieces to this puzzle.
Hope this helps.

[ZeroChrissy]

@ sharagan
I have exactley the same situation.
And, the crackling sound :-)

I have new swingarm bearings, new pulley and new belt. And evereything double checked and originally at the rear axis.
Still the same with the new parts.

In the meantime I think, it's may not correct and not necessarry, to align the belt 1 Creditcard from lip. Maybe, all people who are doing that drive with an unaligned wheel/bike!?!?

For, me it's now more important to align the wheel... doesn't matter if belt is running at the lip.

(I also have tried for a test to mount the rear sprocket 1.5mm to the left, with some washers between wheel and sprocket. Still the same. This belt is moving still always to the left to the lip of sprocket.)

The only idea left is motor adjusting within the frame...

Is there a zero procedure how to mount/adjust the motor?

[Red Clay]

My experience is with a 2019 FX.

There is no procedure from Zero, known to me, on how to mount/adjust the motor. My suggestion is to sit down and study the mounts. On the left, the motor is attached snug to aluminum brackets. On the right, there are 4 adjusting bolts. Mark one that is easy to get to and remove it, learn how it works then put it back like it was. Nothing will fall apart.

The belt is centered on the front sprocket by adjusting the motor mounts. To move the belt left on the front sprocket: loosen the two right rear motor mount bolts, turn the big silver adjusters in slightly (1/4 turn), retighten the bolts. Check it and repeat if needed. After tightening the back twice, consider next extending the two right front adjusters (slighty).
Visa versa to move the belt to the right on the front sprocket.

 Don't extend the two right rear adjusters too far or the motor mount will conflict with the swingarm.

The left motor mounts are fixed and the adjustments to the right motor mounts should not be extreme.

Usually, after each small motor mount adjustment, a wheel adjustment is necessary.

This truly makes the motorcycle run smoother and more quietly........after the loud cursing.

Hope this helps.

[sharagan]

Thank you guys for your input, much appreciated.

I do not want to mess around with the motor, according to the laser alignment tool I have it is perfectly in line with the belt and the belt runs centered.
The belt did not run in the middle of the motor pulley only when I misaligned the wheel to have that 1mm gap from the wheel pulley lip.

My next step would also be the washers, but I fear that it would not have any effect as the belt is already bedded in. It would have to be done with a completely new belt I suppose.
But I might try the washers just for the experiment, who knows, maybe it will work. I will definitely report back with my findings.

PS. either it is really supposed to run at the lip or a curious miscalculation that when the wheel is exactly true with the swingarm to 0.1mm also the belt is aligned with the pulley.
if only the user manual would have instructions and recommendations like a real user manual.

But the crackling sound from the belt is making me crazy, it is so rare and I already have it on my second belt, both started crackling after a month (sign of premature wear?).

[ZeroChrissy]

Yeah, makes me crazy, too.
It sounds always like sticking on a clue tape, during braking...

I am wondering, if only you and me had that crackling sound?

It will be may the reason to sell the zero soon, thinking about.
It's not the expirience of silent driving, as promissed by zero.
Also 2 dealers here have no idea anymore.

(Option would be a chain, so at least I know where the sound cames from :-) )

May, should we compare belt numbers, printed on the belt?
May, should we try a third belt!?

Anybody else has that crackling sound?

[ESokoloff]

Anybody else has that crackling sound?

I don’t know as I wear earplugs.

[sharagan]

Here my belt numbers, the last digits are not printed, they are barely visible as they are pushed into the rubber...hold the light at an angle to see it.
First 30-08278 PAT9944763 235H
Second 30-08278 PAT9944763 023J

...the crackling sound is audible when pushing the bike around at the motor pulley as it bends there more agressively

[sharagan]

and a picture of the first belt, how it looks after 1500km

you can clearly see how the outside rubber is cracked completely to the support structure.
some strands of the carbon fibers are loose and just sticking to the side, but not sure it is visible on the picture

Do the teeth of the belt look like they were pushing onto the lip of the wheel pulley?