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Post by unclebuggies on Sept 21, 2011 10:21:16 GMT -5
Yesterday on the way home I had something odd happen. I was going downhill for an extended period (1/2 mile) light throttle at about 55mph. I could feel the motor buck a few times like it was stalling and starting.
When I coasted to a stop at the light at the bottom of the hill, the engine died. I coasted around the corner onto the side street, and it took me 1 to 2 minutes to get it to start. Then I road several miles further to my home without incident.
Any thoughts what is going on here?
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Post by bhinch on Sept 21, 2011 15:18:46 GMT -5
Well, it could be several things....how many miles on the scoot .... did you do a PDI .... have you adjusted the valves .... what year scoot....
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Post by unclebuggies on Sept 21, 2011 15:25:53 GMT -5
OK, more info. It's a 2008 Aeolus 300 I bought used in 2009 with 1300 miles. Now has 5200 miles. All fluids were replaced soon after I got it, and current oil has a 400 miles on it. I replaced the vacuum-powered fuel pump and spark plug in July due to stalling out at full throttle. It's been running great since then. Never gapped the valves. This is the first time it's pulled this trick on me, just shut down for no reason. And after just a minute, it started up and ran fine like there had been no problem.
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Post by WarrenS on Sept 21, 2011 16:19:12 GMT -5
How steep was the hill? The gas may have moved away from the pickup.
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Post by trigger on Sept 21, 2011 16:26:46 GMT -5
Ubuntu rules!
Ohh scooter question. Ahh you were not pulling enough vacuum to run the fuel pump, and ran the carburetor bowl dry. After trying to start for a few minutes the pump refilled the carb and off you went. Check for vacuum leaks too.
Hope this helps. I am not 100 % sure of my answer but it sounds reasonable.
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Post by unclebuggies on Sept 22, 2011 7:53:46 GMT -5
Pretty steep grade, and the tank was only 1/4 full, so maybe it was nothing more than the pickup tube running dry like Warstein suggests. I did fill up on the way home afterwards and put in 2 gallons, which is usually as far as I let it go before refueling.
I was going downhill on light throttle, so vacuum should've been exceedingly high at that point. I don't think lack of vacuum would explain why the fuel ran dry. I'll let everyone know if the problem occurs again. Thanks, all.
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Post by Pony66 on Sept 22, 2011 9:04:29 GMT -5
You do need to adjust those valves. It may not be your issue, but every vehicle without hydraulic lifters, requires valve adjustment.
Replace your rubber fuel lines with clear yellow vinyl and you wont have to guess about fuel delivery.
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Post by ssj4goko4 on Sept 22, 2011 9:10:58 GMT -5
agreed if it was a really steep hill and was low in gas he probably just ran dry for a second.
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Post by oldkid on Sept 24, 2011 9:35:25 GMT -5
I have a Linhai 300 and I've never had to adjust valves or anything else so far. Mine is the 06 model. As far as I know they all have electric fuel pumps so that's probably also not the issue.
My guess, especially if you have ethanol in the fuel is you swallowed a glob of water. Also could be trash in the fuel but I doubt that too. The fuel filter would take care of it before the
engine.Good luck, but if a fill up with new gas fixed it then I have to agree with ssj4goko4 or the water in fuel situation. I'm not sure, but I think the fuel hose connects at the bottom rear of the tank, and if so I think you just ran it to low for pickup.
Note: On the fuel pump, I stand corrected, I found out that your model did in have a vacuum type.
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Post by TERRA NUVO on Sept 24, 2011 9:46:20 GMT -5
i know your scooter stopped
but nothing runs as perversely as a bill gates computer program,
very hate ful things, like a walk thru a submarine in the dark.
going down hill?
you could have had a vacuum lock on fuel supply.
down hill you can also dump a mess of oil to valve breather
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Post by JohnnyC on Sept 24, 2011 14:40:13 GMT -5
As is the case with 99.9% of Windows computer problems... it's likely user error.
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zeke
Junior Dawg
Posts: 14
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Post by zeke on Sept 25, 2011 5:12:21 GMT -5
As is the case with 99.9% of Windows computer problems... it's likely user error. I think you mean .1% I switched to Linux and haven't looked back. |
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Post by bones113 on Aug 21, 2012 17:02:09 GMT -5
Zeke, I use Linux to. What distro do you use?.
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Post by OverReved on Aug 21, 2012 19:08:25 GMT -5
Zeke, I use Linux to. What distro do you use?. Sept 25, 2011, 5:12am You'll need a time machine to get them to answer? |
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Post by bones113 on Aug 22, 2012 9:31:10 GMT -5
Zeke, I use Linux to. What distro do you use?. Sept 25, 2011, 5:12am You'll need a time machine to get them to answer? LOL I didn't pay attention to the time line. I need to pay more attention. |
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