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Post by robert1c on Nov 9, 2012 23:09:36 GMT -6
Hi All, I need your help. I have a Roketa 250b (linhai) that has seized up the rear wheel. It will still start but the rear wheel will not turn. Even if the scooter is off it won't roll. I need some guidance on what to look for to see what needs to be done to fix it.
Any help would be greatly appreciated.
Thanks!
Robert1c
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Post by alleyoop on Nov 10, 2012 0:47:30 GMT -6
First check your rear brake and make sure pads are not holding the disc. Since it is an open system little rocks and pepples and things could of flown in between the pad and disc. Also check if the pistons are not extended out, they should be retracted.
Also make sure the DISC system is in place something may have come loose and shifted.
Since you cannot even ROLL it around freely the WHEEL itself is being stopped by something and the only thing most likely is the BRAKE PADS are holding onto the DISC for some reason.
But if all that looks good then you will have to take the CVT cover off and check out if something is wrong or broken.
Alleyoop
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Post by robert1c on Nov 10, 2012 7:19:00 GMT -6
Hi guys, thanks for the info. It was stopped at light and when it was given gas to go it kicked forward like it had just been rear ended and then it died. Once restarted the rear wheel would not spin.
I will check the breaks and then pull the CVT cover.
Thanks for the info.
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Post by richardthescooter3 on Nov 10, 2012 8:21:22 GMT -6
Robert1c, You won't know until you get into the CVT area, since your into that area, it would also be a good time to clean and re-grease both variator and clutch, I have the 250b and I could not squeeze the clutch to get the belt off, let us know how you make out  |
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Post by robert1c on Nov 10, 2012 11:19:14 GMT -6
Hi guys, an update. I think it might be the clutch because while on the center stand the wheel is very hard to spin by hand and when started the wheel does spin. As soon as I drop on the tire it dies. I'm thinking either the new (less than 2 months old) clutch is bound-up.
It's parked about 5 miles away so ill have to get a wrecker to get it home. And then check it out.
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Post by alleyoop on Nov 10, 2012 13:23:50 GMT -6
Yep, something is wrong in the CVT because at IDLE the REAR WHEEL should not be spinning. That is why it dies when you take it off the STAND the CVT is turning the wheel to fast when at IDLE and it puts to much of a load on the motor and it dies.
Alleyoop
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Post by cruiser on Nov 10, 2012 15:26:42 GMT -6
I agree with Alley. It sounds like something broke or is loose in the clutch which is causing it to stay engaged.
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Post by richardthescooter3 on Nov 10, 2012 17:13:55 GMT -6
I agree too. That happened to me, every time the scoot stop, it would stall, (because clutch was still engaged) replaced main clutch spring, problem solved |
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Post by robert1c on Nov 10, 2012 23:44:39 GMT -6
Alright guys finally got it home. I'll be opening it up tomorrow AM. Which is the main spring? The big one behind the clutch plates? It's a new clutch. Its only about 2.5 months old.
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Post by alleyoop on Nov 11, 2012 0:34:20 GMT -6
Yes it is the spring between the two CLUTCH PULLEYS. But it may not be that at all it could be the Clutch pads and or Clutch springs broke and or part of the pad arm broke etc.. So if you can when you take the CVT cover off take pictures of the VARIATOR and CLUTCH so we can see if just standing there it looks ok.
Alleyoop
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Post by robert1c on Nov 11, 2012 8:59:59 GMT -6
Hi Alleyoop, I pulled the CVT cover and pulled the bell housing off. While there was a lot of dust behind the pads they are intact and the springs are tight. I can't really see behind to the springs. There is a large flat bolt retaining the assembly. Would you know what size that is?
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Post by robert1c on Nov 11, 2012 9:15:06 GMT -6
Ok I just put the bell back on and started it and the clutch is engaged right off the bat. When I pull the break it stops the wheel but the clutch is still spinning. I'm worried now this issue could be something else.
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Post by alleyoop on Nov 11, 2012 16:18:13 GMT -6
Well the BELL which is the Outside part should not be spinning if it is that means the CLUTCH PADS are grabbing the BELL and turning the wheel. How is your idle It could be that the IDLE is to high it should only be around 1800-2000.
As for the BIG NUT to take the clutch apart I use an Adjustable Wrench. I do not have a big Socket to fit it and I am not going to buy one just for that one big ass NUT(HAHA).
Alleyoop
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Post by cruiser on Nov 11, 2012 20:41:18 GMT -6
Ok I just put the bell back on and started it and the clutch is engaged right off the bat. When I pull the break it stops the wheel but the clutch is still spinning. I'm worried now this issue could be something else. If you have the clutch bell off, you will see the clutch shoes spinning whenever the engine is running with the CVT belt still connected. This is normal. When the engine is revved, the shoes will expand and make contact with the clutch bell which then spins the rear wheel. |
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Post by alleyoop on Nov 11, 2012 21:08:55 GMT -6
With the scoot on the center stand and the wheel off the ground you should be able to grab the BELL and turn it and it should turn your wheel. IF the CLUCH pads are already engaged it will be HARD TO TURN the BELL because now you are also turning the CLUTCH PULLEY and BELT also. Just sitting there the bell should not be spinning while idleing.
Also notice the Rear Wheel after the RPMS come down it stops spinning.
Alleyoop
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..BAD TO THE BONE..
