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Post by lain on Apr 1, 2016 7:45:14 GMT -5
Yeah, lain - that's pretty much the obvious guess: insufficient starting power, either because of the starter motor, the wiring, or the battery. But the first thing Mark did was rule all that out by using a fully charged car battery (plenty of reserve power), getting a new "high torque" starter motor, and connecting the jumper cables from the battery directly to frame and to the starter + terminal. No change. Then he took the right side cover off and found a distortion in the starter clutch, so he replace that. No change. So the next logical conclusion is that the distortion in the starter clutch was a result of the problem, not the cause. So, not much left other than taking the top end apart. What's odd is - early on he took the spark plug out and the engine spun like a top using the scooter's battery and wiring. That almost certainly points to insufficient starting torque .... but that's all been ruled out. Odd problem, to be sure! If the entire time he has been trying to start with WOT then I believe he's accidentally distorting the results. Even a good battery with new wiring and all good components may have trouble starting at WOT. I can't start my scoots holding them at WOT it sounds the same, but leave the throttle alone they all start up without effort. Not to mention I'm sure when he does get it started it's going to go straight into that bench doing that lol. I'm not entirely sure but doesn't starting at WOT decrease compression? |
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Post by lain on Apr 1, 2016 6:58:30 GMT -5
Hmm... not entirely convinced this is the supposed milage... I went to work and back, a total of 23 miles... Before going to work I had a completely full tank, arriving home from work I can see the bottom of the tank... Even for 0.8g tank that seems way too low to me, that would be what about maybe 30MPG? That's horrible for a scooter... It is completely stock, there are no leaks, so I am confused here, pretty sure these things are supposed to get like 60mpg+ stock.
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Post by lain on Mar 30, 2016 21:13:57 GMT -5
Audio wise, it sounds like you have not enough power pushing the starter motor (possibly dying battery or wrong gauge wiring) trying to push over your engine while holding the throttle wide open... Umm... Don't do that, just leave the throttle alone when starting, at most a slight nudge of a twist. Have you always done this? The way you approached the scoot and went right to twisting the throttle wide open before starting it looked as if you were used to doing that. The starter wires get hot, especially if you ignore the manual and go ahead and continue to keep trying to start it. The manual, or at least mine, says "To start hold the brake lever and press the starter button for no longer than 5 seconds, if it fails to start wait 10 seconds and attempt to start again." I've actually fried out starter wires by just attempting to start over and over, burned them up so much they couldn't hold enough current to turn the engine over but read just fine on the meter, however when taken out and gutted the wires were brown and black inside instead of the copper goldish color they normally are. |
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Post by lain on Mar 30, 2016 20:07:40 GMT -5
The plug was a perfect light mocha color, everything seems to be working great. My rides consist of a mix of both stop and go and open road, I drive about 35-40 on city roads and about 50-60 on fast roads, about half of both to get to work and back, everything else is pretty much city/town roads going 30-40. Half the time I carry a passenger, doesn't seem to change the mileage noticeably from when I'm riding alone.
Still, I ride a lot, and rolling up to the gas station telling the attendant that I want about a half gallon or less and seeing them roll their eyes is getting annoying. Also I plan to be going for long rides across states over the summer on this thing since it's actually really comfortable and enjoyable to ride, so having better mileage or maybe an aux tank idk... something to make me not get my arse stranded somewhere pushing this heavy scoot lol
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Post by lain on Mar 30, 2016 9:11:02 GMT -5
Nope, checked all lines, gas and vaccuum for leaks and whatnot. Tank is clean, I had already cleaned it out when I restored it.
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Post by lain on Mar 30, 2016 5:35:39 GMT -5
So I have been riding my salvaged 150cc for a couple weeks now, and am getting aggrivated at having to fuel up literally every day, yesterday I actually fueled up twice! I totalled only about 35 miles yesterday so how the am I using that much fuel... There aren't any issues with how it runs, it runs like a dream, just annoying to have to keep an eye out for gas stations when on my old 92cc I only gassed up a couple times a week while doing the same amount of travelling I am doing.
There are no leaks in the fuel lines, the tank has no leaks but I noticed the tank itself even though this is a 150cc is one of the smallest I've ever seen, only 0.8G!!! Every time I gas up I'm putting in about half to 3/4 a gallon into the tank at most even when almost dry. The carburetor is in great condition, made sure to disassemble it and clean it out when I first got the scoot and it looked like-new.
Do you guys think it's just the size of the tank that's causing me to have to fuel up everyday or could there be another issue I'm overlooking?
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Post by lain on Mar 27, 2016 10:26:09 GMT -5
There is a weird metallic clicking noise whenever I takeoff from a dead stop, and more often when I have a passenger. The front disc also squeaks at a specific point in the front wheel's turn. I can't figure if one shock is maybe dead or something but it also wiggles sort of, not enough to effect control but enough to feel it is wiggling slightly, can really tell at about 75mph+ (speedo).
The scoot is a jonway 150cc, not sure what the model is. Recently bought it when it was totalled in a collision where the old tripletree was badly damaged. When installing it seemed like the shocks were fine, they compressed to about the same distance, the front rim and disc seem to be straight to the eye. It makes a super loud disc scraping noise when pushing it and turning it to the left, but the noise is low when turning and pushing it on foot to the right. The new tripletree is also half of an inch wider than the old one, but all measurements otherwise are the same.
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Post by lain on Mar 27, 2016 10:19:12 GMT -5
Turned out they came right out, the old tripletree was just so damaged I needed to pry the holes open around the shocks by hammering a thick flathead between the cracks where you screw the bolts in for the shocks.
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Post by lain on Mar 17, 2016 13:11:59 GMT -5
Think I'd use a ruler to measure it......get an idea of what size you need, and then shop around for a set of sockets. I have a set from Harbor Freight that has both 3/8 and 1/2 inch drive sockets included. Think I paid around 10 bucks for the hole 7 piece set. Here is another option...... socket setBut measure it first, then shop Sounds like a good idea. |
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Post by lain on Mar 17, 2016 13:08:18 GMT -5
I removed the bolts from the tripletree that hold the shocks, but they still aren't coming off or moving, so I am assuming it is because these fork oil caps are there? That's how it works with the smaller shocks.. I'm only trying to buy the single socket that I need, not a set. I have a ton of sockets but they are all for the kind of bolts that have the head protruding instead of being inside the head like with the shock fork oil caps, don't have anything else remotely like it, wouldn't benefit from having a dozen weird shaped sockets, just need the one weird shaped socket. |
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Post by lain on Mar 15, 2016 13:23:46 GMT -5
I think I'm going to end up having to bring the whole friggin front end with me to the store.... I don't have any bolts with a head that size, it's very large... The closest I have is half the size at least... I've seen this on many other scooters, but shocks usually don't need to be worked on unless leaking or the tree breaks (like in my case) so I never needed to know till now how to remove them.
So let me rephrase my question so maybe I can get a more direct answer that may be helpful...
Has anyone here removed shocks with hex key (allen) type tops on them? How did you do it?
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Post by lain on Mar 15, 2016 9:56:29 GMT -5
You can find large Allen wrenches on eBay, but you're going to have to find out what size it is first. Not sure how to go about finding the size, but the hole looks the same size as ontop of my shocks on my 50cc adventure as well, so I'm guessing it's a commonly used size on scooters... does anyone know the size? Or if I can get a socket type thing instead of a giant allen wrench? |
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Post by lain on Mar 15, 2016 9:06:13 GMT -5
Just got a 150cc scoot (finally!), bought it for $100, almost new engine, but the front end was messed up because the previous owner crashed it into a truck. I already have some of the parts and the rest on the way (tripletree, plastics, etc).
I am trying to remove the shocks from the old tripletree but they have what looks like a huge allen L wrench hole in it, but I went looking at the hardware store and can't find any allen wrench even close to the size... So what or where do I find this crazy huge L wrench to remove the nut from the top of the shocks??
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Post by lain on Jan 28, 2016 13:00:34 GMT -5
I have been super busy lately, moving now, got a new job, got no time to tinker all the time anyway... I would like someone to take all of the parts I do not need, I have enough parts to make another scooter or two, but no time to enjoy the hobby anymore  Do not want to throw them away, the parts are still useful... I have 3 weeks to get rid of everything so just PM me or something if you want them. Many many pieces, frames, engines, body pieces, lights, wires, harnesses, accessories, wheels, tires, tons of stuff... |
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Post by lain on Dec 5, 2015 12:57:00 GMT -5
It could be tricky, have you gone back into the carb to make sure everything is still in there nice and tight? Also check for any tears or maybe if the needle diaphragm is maybe not sitting right. It sounds like a carb issue, but can't really be too sure, could you post a video of the problem? I wanna hear how it revs up and how it bogs and how it recovers if it recovers from bogging.
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