|
Post by baotian on Dec 2, 2005 20:43:43 GMT
many thanks Billy, and macrofeet, yes i couldent see how the screw driver effected it either lol.
thanks alot will let you know tomorow
|
|
|
Post by baotian on Dec 3, 2005 17:10:28 GMT
ok have done the fuel idle screw thingy, but with no luck, i evan tried turnign out 3 turns instead of 2 but still no joy, that just looses power. what ells could it be as it only doese it when i stop and then twist the throtle to go, it just dies. ive checked for split vacume peipes ect, but that all looks ok, nd the strange thing is, is that it doese it when it only when the bike has been on for about 10 mins, so it doesent do it from cold any more suggestions would be grate thanks!
|
|
|
Post by hypojam on Dec 3, 2005 18:11:22 GMT
sounds like it might be a lack of fuel entering the engine
move the washer down a notch or two on the carb pin and try turn the idle fuel jet screw 2 turns out from in
|
|
|
Post by baotian on Dec 3, 2005 22:34:03 GMT
ok, thanks, will try that but just to let you know, the washer on the pin is already on the second to last notch
|
|
|
Post by hypojam on Dec 3, 2005 23:29:01 GMT
ok, thanks, will try that but just to let you know, the washer on the pin is already on the second to last notch o ok, ermm not sure what else could be your problem Just try 2 turns out from in on the screw might do something
|
|
|
Post by baotian on Dec 3, 2005 23:35:55 GMT
ok will do, if this hasent resolve it then i may have to get soneone to have a look at it i dont see what the problem is, i dont upose it could be the temputure is now getting lower???
|
|
|
Post by hypojam on Dec 3, 2005 23:39:01 GMT
ok will do, if this hasent resolve it then i may have to get soneone to have a look at it i don't see what the problem is, i don't upose it could be the temputure is now getting lower??? i think its almost definitely a fuel mixture problem and the cold would cause fuel mixtures to need to be readjusted so maybe it is just the cold
|
|
|
Post by baotian on Dec 3, 2005 23:52:50 GMT
could it be a duff spark plug?
|
|
|
Post by Botanic on Dec 4, 2005 1:19:49 GMT
This makes it sound as if there is something wrong with the fuel mixture. The first 5 minutes or so the choke is on and there is more fuel coming to the engine.
Also the problem sounds the same as when having the bad type of carbuerator. There are two different kind of carbs to these scoots. The most common is the one with a round hole on top. The other one has a square hole on top. The carb that has the square hole, is known to be bad and behave like you describe. I had one of these carbs in my scoot when I bought it. For some reason the factory had installed this carb even though the retailed had specified that they do not want these carbs. I got a new carb with a round hole on top and the problems disappeared. So check if the black rubber thing, is it called diaphrame or something, is round and not square.
Also, check the air filter. It could be clogged.
|
|
|
Post by BillyGreen1973 on Dec 4, 2005 13:40:33 GMT
it doese it when it only when the bike has been on for about 10 mins, so it doesent do it from cold any more suggestions would be grate thanks! This make me think it is almost certainly the auto choke. It sound like it is not shutting off when the engine gets warm (like it should). This would upset the fuel mixture and cause it to be too rich whenthe engine has warmed up. This could be happening due to two things, first the auto choke unit is dead. Second the wire for the choke has become disconected. ( this may have be done accidently when derestricting ) The way the choke works is this. With no power to the unit, the choke needle is retracted and allows more fuel in the carb to help starting and warm up. With power connected to the unit it slowly extends the needle to cut off the extra fuel flow. This takes around 5-10 mins after stating. The power is connected when the ignition is on, so as soon as you start the bike it starts to extend the needle. You can check the choke unit like this. remove from the carb and measure the length of the needle with the bike switched off. switch on the ignition (don't need to start the bike) wait 10 mins and measure the needle again. it should be longer by about 1/2cm.
|
|
|
Post by BillyGreen1973 on Dec 4, 2005 14:33:48 GMT
Just tested an auto choke unit. Heres the results Hope this helps
|
|
|
Post by Macrofeet on Dec 4, 2005 15:27:21 GMT
It is difficult to use a fat or long screw driver
Hard to fit into the space even with the seat out
but
yeah hand tight is about right
|
|
|
Post by Botanic on Dec 4, 2005 17:46:13 GMT
About the choke: The choke can get stuck if there's small stones or some other dirt in the choke. It can help to clean it up.
About the fuel mixture screw: Every scooter is an individual. There is no perfect setting for the screw that works with every Baotian. The 2 ½ rule is a good starting point. You still need to tinker with it for a while to get it perfect.
|
|
|
Post by baotian on Dec 4, 2005 19:15:05 GMT
yes many thanks all for those suggestions, today i fideled with the mixture screw and idle screw, and there was a big improement as the bike reved higher. so at first everything was ok and it was runing fine, but then i went on a 4 mile drive without stopping and most of it was with the engine flat out, and then when i got to some traffic lights (had to stop) it did it again. so whats happening is is its onyl doing it when the eningine has been reving flat out for a while and when it comes to a stop, something is happening. any suggestions? another suggestion is that, is this normal that theres a small amount of fluid stained where it has come out of that breather pipe? could this be something to do with it? image resized by Ginger Phil. Click on the pic for a larger view
|
|
|
Post by baotian on Dec 4, 2005 19:28:40 GMT
btw ignor the choke outline on the pic
|
|
|
Post by Botanic on Dec 4, 2005 19:30:01 GMT
|
|
|
Post by BillyGreen1973 on Dec 4, 2005 19:34:33 GMT
the choke is the large black block on the side of the carb. It has a yellow and green wire coming from it. The mixture screw is marked 'this one' It could be that the diaphram is not sealing properly in the carb top. it's worth checking, and easy to do. I had the same problem of stalling a traffic lights etc. I removed the carb top and re-checked to diaphram seal. It seemed to work. Thanks to Hypojam for the pic.
|
|
|
Post by hypojam on Dec 4, 2005 19:38:52 GMT
Thats what my carb looks like
|
|