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Post by lain on Jun 6, 2015 23:32:00 GMT -5
I can't think of a possible channel of air that would create a vacuum pocket in the variator that would not also flow through the variator to other parts.
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Post by lain on Jun 6, 2015 23:24:53 GMT -5
My new scoot sat since new in 2007 in a climate controlled storage building. Has 6 miles on the odometer. I just bought it for 500 bucks as is. Hoping to get it all ready soon. Dirty, dead battery, old gas, but new. It's a Jonway YY150T-28. Clean or replace the fuel system and carb. Check the filter and muffler for eggs or nests. As long as everything is good it should work out. I recently got a scoot that had been in storage since 2005 or 2006, had 22km on it. Every single rubber piece was dried out and cracked. Intake manifold is so cracked, hoses were all stiff and cracking, gaskets even seemed dried and cracked, the whole topend has leaks. The oil is so old it looks and smells like olive oil. I personally would not buy an old low milage scoot, well not under a thousand km. You should wonder why it has such low milage, why wasn't it sold if the owner couldn't/didn't want to use it? A lot of the time it's due to the original dealer selling a scoot he had on the floor for a year without maintaining it, or a small problem that caused it to stop or not start. After a long time of not running with such low milage things tend to dry out and go bad. As long as you have the parts, the time, and most importantly; enjoy the project, it should work out fine or better than expected. Jonway may be chinese, but I think they may be slightly higher quality than most mainstream chinese. I have 3 jonway agility yy50qt-6 engines, all still working. 2 of them I restored from scoots sitting and one is in my secondary scoot now, the other a backup. The other engine has moved frames twice, has over 40k miles, has a BBK on it, and is still my main scoot/engine. I've seen a lot of people who just abuse their jonway agilitys; no oil changes no maintenance, ride in horrible condition and off road, crash and do stupid stunts with, run without exhaust tubes, fill with wrong oil, use 87 octane, and just basically do everything you shouldn't, and they still keep running. I see people with taotaos do one of the above and they are done. Also, I notice stock jonway agility parts say "Jonway Italia" like on the inside of the light covers and body parts. |
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Post by lain on Jun 6, 2015 21:24:26 GMT -5
I am trying to figure out how to wire something to turn on when the key is turned then automatically turn off when the engine is started/on then turn back on when the engine is off but the key is still turned on.
I would like to wire a couple small LED strips or bulbs to help with parking at night. Might also add a light sensor to the circuit as well so it only turns the circuit on at night under the above conditions.
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Post by lain on Jun 6, 2015 12:06:01 GMT -5
Take the clutch apart, regrease it, put it back together, make sure the huge assembly nut is fully screwed down. Check rods for any misalignment. Get a kevlar belt if all else fails and abuse it for months till it stretches out of operating specs.
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buzzer
by: lain - Jun 6, 2015 11:54:05 GMT -5
Post by lain on Jun 6, 2015 11:54:05 GMT -5
Found a buzzer in the harness of a decade old 2stroke. What could be it's purpose?
At first I thought it might be a relay, for blinkers or something, but then I hooked it up to a 9v and it let out a loud high pitch buzz like in old cars when the engine has issues.
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Post by lain on Jun 6, 2015 11:33:42 GMT -5
In the rainy season there's not much choice here, it rains most of the year, none of my vehicles has a roof, lol, but I don't mind riding in the rain, you just have to be careful and have a good rain coat, my coat is great, none a single drop gets inside   |
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Post by lain on Jun 6, 2015 11:28:10 GMT -5
The weights are actually brand new. Yeah and this happened after just one ride. I actually did blow out the cvt with some compressed air too. The slides do look fine. No abnormal wear on any of the surfaces. The belt doesn't look like anything is rubbing against it either. Could an aggressive hit clutch do this? But then it wouldn't make sense why clutch pad dust only collects within the variator slide area and not around the clutch assembly itself. Even when the dust originates from the variator it would still get flung out. Why is your scoot defying physics? is there a goblin on the crankrod sucking in the dust? |
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Post by lain on Jun 6, 2015 8:43:06 GMT -5
I added a switch to direct the low beam power to either or and left the original switch. I can turn the lights off, run either or, or both. My original switch ran highbeam off the battery that's why I originally added it, but for me it works great to do all of the functions.
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Post by lain on Jun 6, 2015 8:32:33 GMT -5
I had this happen when my variator slides were worn and dry. Check around for where there may be belt rubbing. That's a lot for one ride though. Slide dust can also look like belt dust when they are old and worn.
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Post by lain on Jun 5, 2015 15:55:59 GMT -5
well the only thing i can think of since you have replaced all the tranny parts, and its a weird one, is the crappy diaphragm on your carb has finely worn out, they stretch a bet over time, and wont raise as much, to let as much fuel and air into the cylinder. Checked the carb too, even tried moving the needle clip, no change to the issue. It's a 3 month old KeiHin, I highly doubt it's worn out. I haven't even been using this scoot much lately since I got a second one built and moving. It's so weird though, I've been all over the scoot trying to figure it out. It kind of seems like I have lower compression after running, it becomes easy to move the crankshaft by hand, a few months ago it had so much compression I ended up getting a new starter and rewired everything to give the starter more power. I only use this scoot nowadays when time is a factor or if I plan to ride on roads where traffic has a steady rate of 40+, which is maybe twice a week. In my experience the FWOMP noise and jerking come from belts rubbing the bendix, and there IS a line on the belt now from it rubbing which might explain the resistance feeling or loss of torque in the high end, but I have replaced everything and got the same results so I am stumped. |
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Post by lain on Jun 5, 2015 13:28:55 GMT -5
when you say you checked the transmission did you also check the faces on the rear clutch? Yes everything please look again even went as far as replacing every part. |
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Post by lain on Jun 5, 2015 13:12:53 GMT -5
I can't seem to figure out what's wrong with my scoot. For the first 10-15 minutes of riding I can coast at 40 and get up to 50-55, but then after 10-15 minutes my top speed is like 38 and my coasting speed turns to about 30. Thought it could have been transmission related so I've been experimenting with it.
Also when I hit about 45-50 I hear a loud like FWOMP noise and the scooter jerks. I used to be able to ride at 50-55 easy without noises or issues. It also feels like I am losing torque somehow when I get into the high end it feels like it is going fast but the power does not feel like it changes between mid and high range. Everything in the transmission looks great, the problem seems to happen nomatter what I do with the transmission, I even took out every single part and changed them all for new ones, no change in the issue. Still seems to drop performance after a little riding and make weird noises when going fast.
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Post by lain on Jun 5, 2015 11:00:57 GMT -5
It does on foam filters. A much more fun alternative is to grab a can of Fosters, drink it, clean it, cut out the bottom and poke some holes and slits in stragetic ways, like with the slits cut with a knife and bend it to shield from rain. Or get a nice bendy tube and position it where it won't be a problem.
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Post by lain on Jun 4, 2015 20:51:21 GMT -5
cable is not attached under the seat I would look anyways. Even if the cable isn't attached to the seat it may still be attached to the lock release mechanism. If there is nothing at all attached to the lock release mechanism it wouldn't hold the lock shut so there has to be something attached to it. |
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Post by lain on Jun 4, 2015 17:15:13 GMT -5
I'm working on the same project. You need a top mount frame, the rest is up to your handy skills. If you can weld you can use whatever frame as long as you can make it.
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