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Post by barnie on Jun 28, 2013 19:46:15 GMT -5
Keltex, I have the same exact scoot as the 1st one u indicated. mine is the 2007 JCL MP250a in blue and silver. I have gotten many remarks about the 2 tone paint and it is very nice if I might say so myself. Mine has the Linhai 257 engine in it and it has been a very very good scoot. Would buy another. The Honda engine is good also but in my opinion not as strong as the linhai 257. Its a workhorse! $1500.00 is little high tho and ask where the trunk for rear rack is. It came with a blue one. 300 miles is very good. You will have to do a complete pdi if u buy it because 6 years and only 300 miles has left everything stagnant in it. Ride it and if it runs ok offer them $1000.00 to start. You may be surprised. A 2007 JCL MP250a with 300 miles for a thousand bucks would be a steal. Barnie
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Post by barnie on Jun 27, 2013 16:12:42 GMT -5
I would suspect the inside of ign switch is somewhat melted or a contact has spun off a small pc allowing current to leak. What jr wants to do is bypass it to see what works which is the only way it can be tested but negative battery cable should go direct from battery to frame. Opinion only. Barnie
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Post by barnie on Jun 27, 2013 6:41:50 GMT -5
Richard, you may have a just a left over pc of junk in the fuel system that had to pass thru after you got everything running and back together. Be sure and try some Seafoam when u get a chance and I think I would just see how it does for couple days. I think i would consider a new belt tho. Let us know how she runs today. Barnie  |
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Post by barnie on Jun 26, 2013 20:28:38 GMT -5
Richard, did the hiccup go away at that point and how much did the rpm go up and did you speed increase and everything seem to smooth out. About what speed did that problem show up at..Barnie
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Post by barnie on Jun 26, 2013 20:22:25 GMT -5
1olescoot, the belt is one of the few things you really don't have to do any maint to. If it looks go and is not frayed etc your good to go for quite some time. If is a Gates or Bando belt you should get in the area of 10-12 thousand decent miles before you have a problem. Jack Rabbit starts will wear the belt faster because it slips until the variator and clutch can pick it up and hold it, but don't baby it either on starts as that's hard on your clutch. Just drive it like your car.  Barnie WRX, I just use a good grade of standard 80-  weight gear lube. It works fine and as often as we have to change it for maintenance sake it will save u some $$$. Barnie's opinion. |
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Post by barnie on Jun 26, 2013 16:55:27 GMT -5
Richard, not sure what would happen in a used belt was put on backward. They usually put a directional arrow on them much like new scoot tires have a directional arrow, it must have something to do with the way the belts are wound. If you have 15000 miles on the orig belt you may really want to consider a new one. There is a lot of heat inside the case and you know what age and heat does to a belt. not real sure on the hiccup, its funny its stong to 60 or so and worse down hill not under a load. On more or less coasting down a hill with little or now throttle the variator will release most of the tension and on mine it gives me less than a smoothe coast as I can feel the belt trying to catch but can until the rpms start back up. You may have just a little bug in carb yet on high side. when u cleaned the carb were you able to get all the little holes on the engine side of the throttle plate clean where carb cleaner would blow it with compressed air? Can you get it to idle smoothe with the a/f screw? Barnie
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Post by barnie on Jun 26, 2013 11:03:17 GMT -5
Originality, recheck your valves. Make sure the int is .004 in thousandsth and exh is .005-.006 in thousandsth. That wont cost u anything and is very important.
Richard, what kind of cond and how old is your belt and same with your clutch. When u back off throttle going down hill and ur speed increases your belt is being relaxed somewhat as the variator and clutch change their positions and what appears to be a hiccup culd be the belt jumping around is deceiving u. If its strong up to 60 mph, sound as tho ur engine is ok.
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Post by barnie on Jun 25, 2013 17:04:35 GMT -5
Hey guys,, don't we all buy these things to tinker with and enjoy the road on 2 wheels. It's our hobby, the women go shopping and we go ridin.. Barnie |
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carb choke
by: barnie - Jun 25, 2013 16:55:00 GMT -5
Post by barnie on Jun 25, 2013 16:55:00 GMT -5
Peacedawg, as far as your choke situation, my JCLMP250 with the linhai 257 engine, mine starts and does exactly like yours. It always starts at the touch of button with no throttle instantly goes to about 2m rpm then few seconds later drops back a hair to goes to 2m rpms which is where I have the idle set. If its starts good and stays running ok I don't think I would mess with it. If it has not run good since u drained tank and ran it our of gas to move, some of the small passages in carb may have varnished up a little. You can try 1 oz seafoam per gal gas to see if that will help, otherwise a good carb cleaning paying particular attn to the small holes on the intake manifold side of the throttle plate. If you are very careful you can take carb apart/clean/reassemble with no parts or gaskets. set you a/f screw at about 2 to 2 1/2 turns out to start engine and if it runs good on road leave it there. Can I help you any more? ;)Barnie |
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carb choke
by: barnie - Jun 25, 2013 16:42:06 GMT -5
Post by barnie on Jun 25, 2013 16:42:06 GMT -5
Peacedawg, My personal opinion on the fuel and vac lines would be to to your auto parts store and get regular thick wall rubber fuel hose and regular rubber vacumn hose and clamps to match. Chances are the small spring clips from factory wont fit the new hose as its outside dia is a little larger. The rubber will just hold up and seal on your fittings much better and is more flexible than the plastic would be. Hope this helps you. Barnie
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Post by barnie on Jun 25, 2013 16:33:00 GMT -5
Peacedawg. you probably have 6 screws holding windshield on. go ahead and take the other 4 out and remove the windshield. On my JCL MP250 the 6 little rubber gromlets with the nut molding inside, most of mine were no good so I took 1 of the little metal speed clips that go on the plastic panels that the screws go in, I went to local hardware store and matched up the clips and I used those on the fairing in place of what the factory used. I then cut 6 small thin washers to go between the clip and shield and used short sheet metal screw with thin rubber washer to hold shield on. Works great and windshield is nice and tight. Could u go this route or something close to work. Sometimes you just have to outsmart the Chinese. Let us know. Barnie
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Post by barnie on Jun 23, 2013 19:35:11 GMT -5
How long has it been since ur last valve adjustment. The problem you are describing is typical of valves out of adj especially the exhaust. Yours are very easy to adjust since u have the Honda clone engine. Let us know how you do. Barnie
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Post by barnie on Jun 17, 2013 20:15:40 GMT -5
Richard, open the carb bowl drain screw and drain carb, the close screw and crank engine a some and then open the carb bowl drain again and see if u get a decent amount of gas out of the drain hose. If it does that would indicate that the carb is at least getting gas. It has to crank for a little bit to fill the bowl in carb. Your valves are adjusted good so u get maximum vacumn correct. Remember the older cars that when u stomped on gas the vacumn windshield wipers would quit till u let up on the gas, that's the same thing that happens at wot. the vacumn drops way down where if you pump is weak the gas quits flowing and the engine runs off what is in carb bowl, When that's gone the engine quits. Then u have to crank for a bit to fill it back up and away u go. Keep searching, u'll find it. Barnie |
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Post by barnie on Jun 15, 2013 19:23:26 GMT -5
Richard, plugged up jets will sure make her run out of fuel at high speeds! Hopefully that is all ur problem turns out to be. If it came on gradually that would make sense. Let us know. Ridecheap, I have that exact pump on my JCL MP250 a with the linhai 257 engine. in addition to the micro filter that screws on end of pump I also installed a primary throw away filter before that one and the tank shut off. I just don't want any dirt in carb. Pump has been working great for a long time now. Barnie |
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Post by barnie on Jun 14, 2013 19:14:48 GMT -5
Richard, any luck yet. Barnie |
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weight gear lube. It works fine and as often as we have to change it for maintenance sake it will save u some $$$. Barnie's opinion.