foxy
Regular
Posts: 14
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Post by foxy on Oct 31, 2005 23:04:21 GMT
i was messing with it again today and it seems the pipe doesnt take in air from the air box, it pumps air from the exhaust to the airbox.... Some kind of re-circulation... Im completely baffled by it
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Post by Gavin on Nov 1, 2005 8:54:30 GMT
i was messing with it again today and it seems the pipe doesnt take in air from the air box, it pumps air from the exhaust to the airbox.... Some kind of re-circulation... Im completely baffled by it If that is the case, then it might have two benefits, firstly it could provide warm air for the petrol/air mixture, and secondly it could burn excess petrol that has got into the exhaust system, but neither of these explains why the scooter won't run if the pipe is left off
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Post by Botanic on Nov 3, 2005 15:51:44 GMT
This is what have happenend many people on a swedish forum, when the valve stops functioning. The valve lets in exhausts into the airbox and makes the engine go "less good". The easiest thing to do when this happens is to plug the pipe.
The strange thing with your problem is that your engine goes nicely with it and not without it... I think there is something strange going on with your baotian. Maybe it gets too much air into the carb for some reason. Then when you have the exhaust coming into the airbox, there is less air going in..?
What brand is your vehicle? Is itan ordinary Baotian Classic, sport or retro?
I think there is something else going on with the carburator or engine though. I would start investigating the carburator, especially the diaphram seal and the needle.
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foxy
Regular
Posts: 14
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Post by foxy on Nov 5, 2005 13:11:15 GMT
if the needle was to be very slightly bent would that cause a problem, im talking VERY sligghtly.. think mines the sport.
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Post by Botanic on Nov 5, 2005 16:23:51 GMT
Yes that is most likely a problem if not THE problem. The needle needs to be very straight. If it is bent, it has a problem moving up and down.
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foxy
Regular
Posts: 14
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Post by foxy on Nov 10, 2005 10:22:44 GMT
ok ill order another one and see if that helps, thanks
Nick
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