Ongoing saga of Roadrunner 300 vibration By new2scootn (Read 2,157 times)

[Alleyoop]

Yes I see what you mean, that is a bad shake rattle and roll on the handle bars. That is not anyway to ride around with crap it will shake you all to heck.
Are you sure you have correct toe in and camber aligned? Man I would even see if a garage could align them, if they are not aligned properly the two wheels are fighting each other.
Alleyoop

[daddue11]

Sept 23, 2012 10:47:28 GMT -6 justincrediblem said:

Looking at it more this morning, I have a little movement with both right and left front bushings. The left front seems to have a little more play with it though. Here is the pic of the left front bushing I am suspecting may be the culprit. Notice the circled area is showing a space where there shouldn't be any space.

Justin,I went outside and compared your pic to my bushing and there are no gaps in mine and no grease coming out the sides.

I'm gonna go down to the gas station and air up my back tire first and ride it on the highway to see if that's the problem child.

Just got back from that test.... I aired the back tire up at 55lbs. as it states on the tire and absolutely NO shaking up to 112 kmph (I forgot my gps). I have to go to a cookout now so I'll do each of the front tires seperate later tonight or tomorrow. ride safe,but, have fun my friends. daddue.

[daddue11]

Whew, I just used the metric conversion and I was going just under 70. I couldn't hold it for long though because I had my half helmet on and my eyes were burning like heck. Plus to many people coming out of the side dirt roads. SCARY stuff Mainard.

I'm sorry if I took over your post Justincredible, I'm just hoping that I can help. daddue

[justincrediblem]

I've heard of these trikes speedometers reading kph but mine reads MPH. And the other day on my last ride I finally got over 60mph I actually got her up to 73mph. But like new2scootn I get a loss of power on prolonged full throttle runs.

[Cruiser]

The left bushing is definitely bad. It looks like there may be a problem with the welding too. I would at least take both left and right bushings apart and clean and compare to see why one has more play than the other. Should give you a clue to a fix. I wouldn't ride this scoot until it's fixed.

[new2scootn]

Wow Justin, that bushing/bearing really is bad! Can't really tell from pics and video if the bearing is actually bad though, or if the bolt is just loose. When I put mine together I lubricated the bushings with lithium grease and tightened them hard enough to bring the brackets in tight. Are your brackets in tight against the bushings? Are the bolts tight enough?
Daddue11, glad to hear you're getting your vibes ironed out. Justin and I have 2012 models which come with speedometers that register in mph-if you wanted to change yours out I'm sure Sunny would be happy to sell you one! My vibration issues are all but gone if I could just keep her runnin' at near full throttle. But that's a subject for another thread...

[daddue11]

Thanks to you new2scootin and justincredible and Alleyoop info and it's so cool how all of you spread the knowledge, I commend all of you. I also have noticed that the welding on these bikes are at best second rate and some welds are incomplete and have gaps in them and BENT pieces have been welded on with a sharp end sticking up in some places that I intend to redo and reinforce. I still love my bike very much,but the fact that the quality control is nill is a blaring fact. I also want to get the newer speedo very badly,I'll have to check the price.might have to save up after I get the bugs out. I learned to flush out the cooling system and changenthe air filter frome here. You guys are great. daddue.