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Post by vansmack2 on Aug 13, 2013 18:24:42 GMT -6
Borris,
If you look carefully at the picture above that shows the fuel tank there is a second vent line. That second line goes to the little round canister that mounts on the side of the fuel tank. If you look carefully at the picture you can also see that little round canister is tucked up into the frame near the engine just below, and slightly right of the upward pointing yellow arrow.
I have decided I will leave that white plastic piece connected. I will just make a mount to move it up under the handlebars were the alarm used to be.
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Post by vansmack2 on Aug 11, 2013 15:54:50 GMT -6
I have this vent from my fuel tank to this plastic piece that is in the front of my seat. The plastic piece has three hose attachment nipples on it. The line from the tank is connected to the center nipple, and the two side nipples are connected to each other with a loop of hose. I don't know if this is correct since I have no reference, but this looks like a useless vent that I can get rid of. I have a 150 that has the same gas tank, except it does not even have a nipple for this vent hose. I have posted pics below so that it is clear what I am referring to. If anyone has this same setup please let me know how yours is connected. The yellow arrows show the line connecting to the top of the tank, and to the center of the plastic piece, plus the plastic piece itself that mount near the front of the seat.  Here is a closeup of the connections to the plastic piece. The yellow arrow is the vent line connecting to the center nipple. The two blue arrows are the loop of line connecting the two sides together.  Here is where the plastic piece normally mounts. this makes it a pain to rear the seat assembly to do work, so I won't to trash this whole thing if it is not necessary.  |
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Post by vansmack2 on Aug 11, 2013 11:03:10 GMT -6
What Alleyoop said. I forgot about reading about that before.
Also, if you wanted to buy one of the solutions from Scrappydog then you could let them know (email them) what scooter you have, and they would probably be able to help you.
Anyway try the fuel filter suggestion.
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Post by vansmack2 on Aug 11, 2013 0:12:29 GMT -6
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Post by vansmack2 on Aug 10, 2013 23:59:07 GMT -6
Bashan where did you get the brass float you used in this tutorial? scooterdoc.proboards.com/index.cgi?board=intake&action=display&thread=7608I went to take my fuel sending unit out today and the float would not come out through the hole. I tried to wiggle it out and the float came off of the wire. I removed the tank to get the float out of it. I managed to get it out in pieces with a bit of work, and patience. I am not sure if that float was bad and that was my problem, but I removed the sending unit from my parts 150, hooked up the battery and the gauge tested fine while moving the float arm on the sending unit. The old unit seemed a bit loose on the rheostat (resistor part) where the contacts slide. I removed the retaining clip, squeezed it to make the hole smaller, reinstalled it, and tested that unit on the scooter. It seems to be working also, but is now missing the float from the wire since the float got destroyed. I can get a new unit for $16.23 shipped from scooterdomain.com, so I think I will go that route. Now I have to see what is going on with the high temp. |
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Post by vansmack2 on Aug 8, 2013 19:43:17 GMT -6
I have not had a timing light for a few years now. I sold it since I was not using it. My mom may have one in her garage. How do you check the timing on these CN250 clones.
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Post by vansmack2 on Aug 7, 2013 16:37:18 GMT -6
I think it is two separate problem.
I drained the gas today so that I can check the float and gauge.
I don't know about the high heat. I will double check the coolant level, although it looked fine a few days ago.
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Post by vansmack2 on Aug 6, 2013 15:43:40 GMT -6
I ran my scooter today for about a half hour or so while testing my High Performance CDI box, and I had a few more problems. All testing was done with the scooter on the center stand, not any riding since I currently have it on an non-op registration until I am ready to ride it and pay insurance on it.
The scooter had started right up. I let it idle for about 15 minutes or so without any problem. The Fuel gauge was reading full, and the temp gauge was reading about mid point. It does not have a tach or clock, so nothing else to observe. I revved the scooter up high to test top end and held it for a minute or so. During the high rev test the motor ran fine, but the temp gauge went to the H, and nearly on the red line. Also, the fuel gauge dropped from full to empty. The tank still has a lot of gas, probably about 3/4 tank, so I know it is not empty. I shut the scooter off, turned it back on and then fuel gauge went back to full, temp still hot, and did not change. I revved the scooter again, and the fuel gauge went to empty again. The fuel gauge is now staying on empty.
I changed the coolant a few days ago. When I did so I left the radiator cap off for a while with the scooter running to purge the air. I filled it with new coolant as necessary each time it burped. I can see that the coolant is circulating, and the fan is running when the scooter is hot. It only started getting hot when I revved the scooter high for a minute or two.
I bought this scooter used, and only took a short test drive, so I don't know any of it history.
What should I check for the fuel gauge problem, and the temp problem?
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Post by vansmack2 on Aug 6, 2013 15:23:43 GMT -6
I put the Casoli CDI back on and the scooter started right up, and it did not die when idling. The idle speed did not seem to change with the Casoli, but I don't have a tach on my scooter to know for sure. I just adjusted the idle speed with the stock CDI until the rear tire just barely started to spin. the idle was a little low before that.
I will test more later, but for now it seems the Casoli CDI may be fine.
I found two more problems while testing today so I am opening a new thread for those.
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Post by vansmack2 on Aug 6, 2013 12:39:03 GMT -6
Alleyoop,
I have my idle speed adjusted correctly with the stock CDI so that the rear wheel is just barely trying to spin. I will try the Casoli again, but I think I just got a bad one.
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Post by vansmack2 on Aug 6, 2013 0:49:11 GMT -6
Have any of you upgrade your CDI to a "Performance" CDI? I bought ones of these Casoli branded "Performance" CDIs off EBAY and it does not work correctly. The EBAY listing said it is supposed to work with a 250cc. My scooter seems to be running good with the original CDI. When I install the Casoli CDI the scooter has a hard time starting, and a hard time continuing to run when I can get it to start. I had it running for a while with the Casoli, went into my house, came back out a few minutes later and the scooter had died. Basically this "Performance" CDI seems to be crap. I bought this with a "High performance" coil, and the coil seems to work fine. Anyone have any experience, recommendations, and/or suggestions regarding these, or other high performance CDIs? Here is a picture of one like the CDI I bought.  |
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Post by vansmack2 on Aug 5, 2013 23:37:13 GMT -6
Yes, I have the air box assembly that goes on there. I had taken it off to remove the side cover to check the drive belt, and change the gear oil. I even have a spare 250 motor and air box. I don't know if the spare motor runs, but I got it with the rear tire attached, starter on it, etc. for only $25, but no carb with it.
I forgot to get the belt size info while I had the cover off, but I will remove the cover again and repaint it since some of the paint is worn off.
I checked, and I do have the drain screw on the carb. I also removed more cobwebs.
What about the charging system question? Voltage when revving engine maxed out around 13.10 volts. Is that enough, or do I need to check additional components?
Thanks all for educating me about these scooters. I can do a lot of the work, I just have to learn how these things function, and maybe get a few more tools.
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Post by vansmack2 on Aug 5, 2013 12:47:22 GMT -6
I bought my used scooter several months ago. I have had it sitting since then because I was buying some new parts, and repainting body panels, etc. I am now starting to test things, and start assembling the scooter. The scooter seems to be running fairly good, but I have not rode it yet since I have been working on it. I have changed the oil, rear gear lube, and coolant. I also set the idle speed. The temp is running about half way. I found a few things I have questions about. 1. I found this loose hose and would like to know what it is, and if it is supposed to hook to something or hang loose. Pic of end of hose above belt cover on left side.  Pic of other end of hose at bottom of carb. (and cobwebs from sitting too long).  2. I was checking the charging system, and want to know if my finding are OK, or a possible problem. I have about 12.8 volts at idle, or off. Battery is a new high power AGM battery. When I rev the engine the voltage only goes to a max of about 13.10 volts. the post I have read says it should go to about 14 volts. Is this a problem? I may have a few more questions, but have to go for now. I will post more if I think of more questions. Thanks all. |
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Post by vansmack2 on Jul 23, 2013 22:56:10 GMT -6
No help this time, just comments. My 250 frame looks the same as this one, although I have a fuse box. My 150 frame looks nearly the same except the rear shock crossbar is at the back of the frame, and it does not have a fuse box. The plastic covers are the same on both, and why I bought the 150 for parts. Dang Jenningsjosh, I pictured you being taller than that:
I would think that your feet don't touch ground.  |
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Post by vansmack2 on Jul 22, 2013 14:42:11 GMT -6
It may not have a fuse box. I just posted since mine is different than most I have seen on here. I have this 250, and a 150 I bought for body parts. The frames and very close to the same, but a slight difference in the rear where the seat attaches.
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