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Post by phatboy on Apr 30, 2014 22:02:47 GMT -5
Hey guys,
I appreciate this board since they dont seem to judge you for buying a chinese scoot. yes I knew when I bought it that I quality is not top notch and I might have to work on it a little I'm fine with that.
So I got a 150cc scoot, Jonway brand, its a Ruckus clone. First ride the scoot when I hit the brake I swear it feels like the whole frame is flexing an inch or so, I feel the handlebars move forward. I never got that feeling with my old Kymco scoot which felt 100% solid.
I took some of the plastic off to look, I see nothing obvious, no cracks no bad welds.
Just wondering if this is a common thing with chinese bikes or if I should not ride the bike until I get to the bottom of this.
If its not the frame then what else I should look at.
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Post by skuttadawg on Apr 30, 2014 22:25:17 GMT -5
Could be the suspension is not as stiff . Try adjusting the spring dampening on the rear shocks .
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Post by alleyoop on Apr 30, 2014 22:34:09 GMT -5
Maybe it is the handlebars that are loose, get on it and try to move the handlebars forward back. They could be loose by where they tighten on the bearings on the Triple tree.
Alleyoop
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Post by phatboy on May 1, 2014 2:37:31 GMT -5
I sat on the bike and if I push and pull the handlebars really hard it looks like the whole scooter bends a little, not just the handlebars. I assume this is not "normal" and other chinese bikes dont seem to flex like this. My Kymco didnt do anything like this. I hope I'm wrong and this has an easy solution but right now does not seem like suspension or handlebars loose.
I haven't figured out how to get all the plasitcs off yet but looks like I have to
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Post by ramblinman on May 1, 2014 2:49:05 GMT -5
i believe this will fix your problem. same thing happened on my atm50. tightened that nut and it was fine for about 5 days and then while riding the handlebars locked up when i was trying to make a left turn. scared the heck out of me so make sure you tighten the locking nut or it will either become loose again or lock up as in my case.
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Post by phatboy on May 2, 2014 18:28:09 GMT -5
hey guys,
I got plasitcs off and yep, the stem nut was really loose, tightened it up, it helped a bit
also the brake rotor bolts were hand-tight, an accident waiting to happen there!!!
BUT!!! The frame is STILL way too flexible. I can still bend the whole scooter if I try! I don't think this is right. With the plastics off the front it looks like the weak spot is underneath below your feet. going to tear those plastics off next and see what i find.
I'm starting to regret my purchase, hope I get this figured out
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Post by phatboy on May 7, 2014 19:53:07 GMT -5
finally got all plasitcs off, all welds are solid, frame is definitely not about to break. I could still flex the frame but it was clear the whole frame was flexing. there is no weak spot.
I think my last scooter must have had a cast aluminum frame which isnt flexible
best to not worry about it I guess
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Post by craisin on May 8, 2014 13:39:25 GMT -5
I have 2 scooter that look the same but different brands I think they are T3s
Anyway one seemed way too flexible and half the Ks as the more rigid one 3000Ks for the flexi one
OK so i had pulled a lot off the affected scoot to see the problem area.
But you could see it by removing the storage compartment and seat.
Somewhere under there you should see a round tube that goes across the bike and in the middle of that tube is another tube at right angles and has rubber inside it to allow it to flex i guess
I filled that tube with glue from my hot melt glue gun.
I also modified my centre stand so it dont scrape or dig into the road.
At 64 year old i love passing simular scoots around 2 lane roundabouts because i can
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Post by walterwhite on May 8, 2014 16:00:30 GMT -5
what do u mean by flexible?
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Post by craisin on May 8, 2014 17:42:14 GMT -5
what do u mean by flexible? speaking about my experience ,i could hold the rear carrier in one hand while on centre stand and move the wheel side to side an alarming amount |
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Post by craisin on May 8, 2014 17:47:38 GMT -5
rear wheel that is^^^
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Post by alleyoop on May 8, 2014 19:56:51 GMT -5
Are you sure its the frame and its not your front shocks that are weak and you think the frame is flexing but its the front going down when you put your weight on it.
Alleyoop
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Post by phatboy on May 13, 2014 17:14:05 GMT -5
Are you sure its the frame and its not your front shocks that are weak and you think the frame is flexing but its the front going down when you put your weight on it. Alleyoop pretty sure, i look at the frame below the seat and that part stays fixed while the rest of the frame is gradually bent more and more (largest flex was the stem tube area) i think the frame is mild steel which can flex a lot without losing strength trying not to worry about it, i might not have noticed at all if the stem nut was not loose in the first place |
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Post by alleyoop on May 13, 2014 17:17:09 GMT -5
I just thought to mention it sometimes things happen and our minds go bonkers thinking the worst.
Alleyoop
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Post by rockynv on May 14, 2014 23:42:39 GMT -5
They may have used the wrong grade or thickness of tubing when they made the frame or may have used something done up for a bargain 50cc version and put a 150 in it. I would call the vendor you bought it from about the defective frame and would not just assume its OK. On a bike that has the potential to get up to 55/65 mph demonstrable frame flex of the magnitude that you are describing is not something to be taken lightly.
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..BAD TO THE BONE..
