Fuel valve and choke lever

[throtl]

Two questions here

On a cold start, how long are you supposed to (text book) leave the choke on to warm the engine?

Can someone briefly explain the Fuel valve, iv been leaving it on at all times.

Thanks gents

 

[crazzy #1]

carby has a float, there for the petrol is stopped inside the carby, unless your float is bent. so you can leave that on

i never used choke as my bike starts without it and dosent take more than one kick to start when chock is not on

depends, if ur bike wont start without chock turn it on, leave the bike idling with chock on untill it stalls... then you know that its warm/ hot and it can be turned of (this is what i'd do)

 

[FLICK]

Assuming your fuel tap has a reserve....
Off is with the little lever horizontal...
On is with the lever bit down..
Reserve is with the level bit up...

Well worth turning it off when your not using the bike... not good having fuel everywhere if/when ya spring a leak...

 

[crazzy #1]

dads bike been sitting in the garage for bout 10 years, fuel tap turned on... hasnt leaked once(but i guess thats because its a honda)

 

[throtl]

Crazzy, so your saying the choke is used only if it doesnt start first kick. I see now the chock is used to help the engine kick over by higher rpm. And its also used to warm the engine just like the turbo truck I drive at work has a button to warm the engine by increasing the the rpm slightly.

I have the atomik version of the agb29 called the Pro X thumpster. I dont know what this bent float thing is your talking about.

Flick, going by the manuel and what you say, its best to switch the fuel valve off when not in use. But when do you turn it on? When you have dificulty starting the engion say on a cold moring or something?. When im out of fuel will my engine use the reserve tank automaticly or do in need to switch the feul tank to RES (Reserve) once it conks out of petrol.

The manuel says switching the fuel lever to ON before starting the engine alows fuel from the tank to the carby.

Turning the valve OFF after stopping the engine prevents the flow of fuel from the fuel tank to the carby.

Turning it to RES, allows fuel from the reserve fuel supply to the carby.

To my understanding the carby supplys air and fuel to the engine. Does the fuel lever need to be on to achieve this or does it help move more petrol. If thats the case that means the lever will have to be switched on before you start and then switched off when not in use. Flick, are you saying the only reason you dont want any fuel getting in the carby when its not in use is in case you have a leak in the carby?

 

[noidea]

your bike wont stall with teh choke on even when its warm so thats wrong.

Just leave it on for a little while to warm up, then giv the engine a rev and at the same time flick the choke off and if it idles oright then start riding. As flick said with fuel tap.

good idea to turn it off when your transporting your bike/leaving it for a long period of time.

 

[throtl]

your bike wont stall with teh choke on even when its warm so thats wrong.

Just leave it on for a little while to warm up, then giv the engine a rev and at the same time flick the choke off and if it idles oright then start riding. As flick said with fuel tap.

good idea to turn it off when your transporting your bike/leaving it for a long period of time.

Just what I thought about the choke, thats exactly what iv been doing. It may not be a necesaty to use the choke at start up but its a smart idea to always warm the engion at a higher rpm.

In your last sentence what are you switching off, the choke or the fuel lever.
Do you have anything to add about the fuel lever.

 

[crazzy #1]

mmk, i just reliesed that it was rong... my bad

 

[DangerMan]

In my expereince you can ride with the choke on and you will know when its time to turn it off because as yoru rev the engine it will start to bog down and have crappy top end with the choke on. Also the fuel switch is simply a swith to turn the fuel on and off. The reason you want to turn it of is because sometimes fuel can leak into your cylindar and then fill it up, and when you got to start it, it will be much like having water in the cylindar and cause all kinds of problems with not been able to compress the liquid... well thats what i read anyway, never had it happen, to me or anyone i know but then i dont know many poeple. But yeah just turn it of when your not using the bike and on when you are, its a simple way to make sure your fuel doesnt go where it shouldnt, be it on the floor or filling up the cylinder.

 

[noidea]

When you want to go riding, turn tap to on.
Ride, ride ride, engine dies. Turn tap to res then fill up asap.
when finished riding and storing bike turn tap to off.

Since i have bought my bike the only time i have turned the fuel tap to off is when i put it on a mates roof racks to go riding.

Once your engine is running the fuel tap shud b the last thing in your mind. what your saying about the choke is fine. You will be able to start your engine without it but may need to hold throttle on, which can be a bit difficult when your putting on gloves/helmet and tightening your gear. So your bike has a choke, which increases the rpm and richens the mixture slightly. When your ready to ride off just rev the engine and at the same time flick the choke off, this will stop it from stalling then go pop some mono's.

 

[eichkay]

posting this for the second time:

All the choke does is restrict the air getting to the engine via a little paddle thing inside the carbi and thus richen the fuel mixture to help start the motor in colder conditions (bellow 26 degrees)

Use the choke to get the bike started then back it off to half or less, just enuff to keep the motor running and get the bikes motor warmed up.

Fuel tap, open or closed... do what you want, wont really make much differance... When transporting bikes its a good idea to have it closed otherwise it just leaks fuel everywhere because the bikes bouncing around, the only other reason to keep it closed is if it falls it'll just dump the whole tank on the tray or the ground if its parked up at home.

 

[throtl]

I just answered my own question today. Got the bike around the block about 50m next thing you know the bike was conking out and stuffed. I was like **** whats going on, so I pulled the bike over checked the petrol level, it was low but should of had enough to go. Checked the oil, the oil was black for the first time, anyway tryed to start it up again a the bitch wouldnt start. Tryed again and again, switched the choke on and squeezed out a little more but still nothing. I didnt freak out I thought i ll take it back home and fill it up with fuel, so I done that and gave it a few more kicks but still nothing. Then all the sudden it came to me....BING...FUEL VALVE . Fuel valve was off, so I switched it on and gave it another kick, still didnt start but was better than before, another kick still no start but almost. Then I hit the choke and WOOOOM as healthy as it was before. Shes still running good, actually better as it gets run in.

 

[FLICK]

Change your oil get the Chinese Vegy oil out of it

 

[throtl]

Okay so heres a summary of what iv learnt through experience and mixed opinions.

1) Turn fuel lever (tap) on before you start up the bike and leave it on until you finished riding and are ready to switch it off and leave it off. If your transporting the bike on a trailor switch it off. If your leaving it in the garage I think it would be okay to leave it on, but just to be sure switch it off to prevent spillage in case of cracked carbi. (This is yet to be verified by a trained profesional so take it as my opinion). The fual lever (tap) basicly supplys fuel to the carbi thus the engine. Turning it off will be like having no fuel in the tank.

2) Use to choke to help the engine start, if required. No need to have it fully turned, those revs are pretty high so half way will be enough for a little warm up. A full turn should also be ok, that just revs the engine harder, just make sure to do this outide and dont leave it on for too long or the engine will overheat from no air intake. Do NOT use the choke to run in the engine.

 

[byh0005]

i put my choke on for 15 seconds and it fine

 

[twisties]

i put my choke on for 15 seconds and it fine

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