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Post by ellpee on Dec 13, 2017 19:22:07 GMT -6
Life sucks. Completely cleaned every possible carb orifice and reinstalled. Fuel flow okay, vacuum okay, spark okay. Won't start, not even a putt-putt. So I currently own a 700 lb boat anchor. WTF,O?  ? With only 1700 miles on it, no way this scoot should be giving me this much grief, especially since I was able to start and run it briefly about once a week for the past several months. Then all of a sudden it decided to be cranky. Any ideas from anyone welcome. |
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Post by ellpee on Dec 12, 2017 9:09:18 GMT -6
Tried to get 'er going yesterday, no luck, wouldn't start, not even with starter fluid, not even a pop to indicate it was trying to fire. So I guess I'll have to use a screw extractor to get the darn float chamber open so I can give the jets a good cleaning. HAS to be a carb thing; fuel is pumping, spark is fine, don't know what else it could be. Darn this machine! My luck, I'll damage the brand new carb and have to buy yet another one. Finding it harder and harder to say anything positive about Ice Bear.
Followup report: pulled carb, tried my luck with screw extractors, no luck, but then hacksawed small slots in the four screws and got them all to come out (though I'm gonna need different screws when I put it all back together). Be that as it may, I now have access to the jets and will clean them as thoroughly as I know how, then put it all back together and see what happens. Assuming carb is clean as a whistle and all is put back together as it should be, I see no reason it shouldn't start right up and run as smoothly as it should. If it does not, might have a $4500 IceBear Magnum for sale REAL cheap to anyone more mechanically inclined than I am. I am REALLY getting tired of mucking around with what is supposed to be a fun machine.
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Post by ellpee on Dec 11, 2017 9:14:55 GMT -6
Guess RapidJim's very busy or on Xmas vacation, so a question for the general population here. Have cleaned the Magnum's carb to the best of my ability given I can't open up the float chamber, and am putting it all back together, and what do I discover? a fitting on the outside of the carb, left side, right next to the fuel line connector, that has two "orphan" connectors. I don't remember taking any hoses off of those connectors, and a diagram I found for a 2006 Linhai carb says those are not used. Can anyone confirm? I'm certain the fuel line, float chamber drain hose, overflow hose, and vacuum hose are all where they should be, so only these two connectors are left, with nothing I can remember connecting to them.
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Post by ellpee on Dec 10, 2017 9:18:42 GMT -6
Haven't heard from R.J. about the one hose connection I'm unsure of, so haven't tried it in any serious way. Will post when have news.
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Post by ellpee on Dec 6, 2017 18:20:58 GMT -6
Well, I gave up on the screws for now and just filled the float chamber with carb cleaner overnight, am now putting everything back together to see if it'll run better. Had to ask RapidJim about one hose connection I wasn't 100% sure of, so waiting for his reply before proceeding. Did add a shutoff to the fuel line just before the carb, though.
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Post by ellpee on Dec 5, 2017 13:15:30 GMT -6
Just discovered that myself this morning after making the rounds of several shops. I tried to cut a slot in one and couldn't get it to turn, thinking now about using an Easy-Out tool to get them all out and replace them with regular screws. Presumably a California emissions thing, they don't want anybody to be able to change out the jets thanks to their nutso emissions laws. Grrr. Might also just be able to fill the float chamber with carb cleaner and let it soak overnight, but would never know for sure. Prefer to remove and replace those funny screws if I can.
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Post by ellpee on Dec 3, 2017 11:45:59 GMT -6
Dec 3: Wouldn't always start, but got it running this morning using starter fluid and then spritzed in some carb cleaner, but no luck. Either it died right away or it continued to run roughly. So okay, time to pull the BRAND NEW carb and clean the jets and everything else thoroughly because sitting around little used has probably clogged up something. Now have the carb off and on my workbench, generally okay with everything as have done this 2-3 times before, BUT:
The four screws to open the carb bowl so I can get at the jets are plugged, metal of some kind. Don't want to start drilling or otherwise applying brute force tactics until I know what my options are. I'm sure this is a common, generic question, as I've encountered it before with, as I recall, the idle mixture screw on some previous carb or scooter. So anyhow, have hit the pause button for a bit pending input from here. What should I do about those plugs so as to not screw up anything and have to buy a whole new carb?
BTW, the screws to open the diaphragm chamber were so tight that I considerably damaged one of them, finally resorting to vicegrips. So I'm probably going to have to get a comparable screw in better condition before putting it all back together. Some standard degree of torque, might be nice, screwdriver was fine for one but not for the other ....
Oh, PS. I'm going to add a fuel shutoff just before the carb so in future I can run the carb completely dry if I anticipate a longer period of inactivity. $10 at Lowe's lawnmower dept, no luck at AutoZone or PepBoys. Might be I have such a shutoff underneath the fuel tank on my Magnum, but a big hassle to find out.
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Post by ellpee on Dec 1, 2017 8:23:32 GMT -6
Thinking it might be worth the trouble to add a shutoff valve to the fuel line just before it gets to the carb (easy to get at) and do what you describe. Bought some carb cleaner yesterday, will try clearing it in the next few days and see what's what.
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Post by ellpee on Nov 21, 2017 18:42:45 GMT -6
Always possible; as I said, it's been sitting idle for several months except for more or less weekly "health checks." I suppose under those conditions the gas could have gone bad too, although until yesterday there was no problem. Will play with carb cleaner, then if necessary carb remove/clean/reinstall, then if still no go, drain tank entirely and start over with new gas. BTW, I have starter fluid but nothing actually called "carburetor cleaner." Will that work the same, or do I need to make a run to AutoZone?
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Post by ellpee on Nov 21, 2017 8:20:34 GMT -6
Will try to shoot some carb cleaner into the intake of this brand new carburetor and see if that clears it up. If not, guess I'll have to pull the carb and clean it thoroughly.
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Post by ellpee on Nov 20, 2017 12:53:28 GMT -6
My Magnum has been sitting idle for awhile; I finally got it to start consistently last spring after bringing it back to Tucson, but have not yet titled and registered it here for a variety of reasons. I have, however, been starting it once a week or so, running it until the engine is warmed up, and sometimes driving it around the private streets of our neighborhood for a bit.
Went out this morning and started it up, and about the time the temp gauge went up to the second mark, it started running rough and would not keep running if I let off on the gas. Before I start chasing my tail again, wondering if anyone has any thoughts about why, after many successful starts and short rides, it would suddenly develop this problem. What should I check first? (FWIW, it WAS a little harder to start this morning, had to crank it longer than usual.)
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Post by ellpee on Nov 5, 2017 9:51:40 GMT -6
Not sure which is worse, "we won't touch anything Chinese" or "oops, that wasn't it, now let's try this." My sympathy, garyv.
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Post by ellpee on Oct 9, 2017 7:17:51 GMT -6
Oh, a PS: if you haven't already bought your replacement regulator, seriously consider getting one from Oregon Motorcycle Parts. They build their own, and they are gorilla-grade, much better output that most you'll find on line, though somewhat more expensive. I had charging problems too, and the ultimate solution was one of their regulators -- zero problems with charging and running all accessories after that. (No, I'm not related or a shareholder, just a very satisfied customer.)
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Post by ellpee on Oct 8, 2017 8:53:36 GMT -6
Carb accelerator pump?
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Post by ellpee on Oct 7, 2017 7:52:05 GMT -6
I *** THINK *** that's the enricher, which adds a bit more gas to the fuel flow thru the carb for a few minutes, until the engine is warmed up. Kind of the reverse of a choke; choke decreases amount of air, enricher increases amount of fuel. Didn't realize it got its power direct from the stator, but that would make electro-mechanical sense, don't want it heating up just from the ignition switch being on.
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