Technical Choke issue

[stocky]

When delivered the choke lever wouldn't move from off. Looking at the carb the lever looks to me to be set always fully open hence no movement, am I right and why would this be done?

 

[stocky]

Ok, removed cable from carb and tried lever, works fine. Straightened end of cable and retightened in closed position works fine. For some reason someone had tightened in fully open position.
Wonder if im going to have cold starting issues?

 

[smart51]

I have trouble with my choke cable. It stick half open unless it is set just so. If yours was adjusted to be permanently on, I wonder if it was running on the choke rather than the slow running circuit. Does it start and run OK now you've reset the cable?

 

[stocky]

I have trouble with my choke cable. It stick half open unless it is set just so. If yours was adjusted to be permanently on, I wonder if it was running on the choke rather than the slow running circuit. Does it start and run OK now you've reset the cable?

Yes got it started but didn't run it long enough to warm up properly so I could do without choke, it was footy half time

 

[stocky]

Good thing was choke lever went up and down will give it a proper try tomorrow

 

[the hobbler]

Good thing was choke lever went up and down will give it a proper try tomorrow

I think that there may have been a problem with the slow-running jet (aka, idle jet) and this is why the choke was on permanently. It might also mean that the previous owner didn't know how to adjust the carburettor to idle properly. At the risk of "teaching you to suck eggs" may I suggest the following.
GENTLY screw in the idle MIXTURE screw until it stops--and then screw it out 2 complete turns. Then screw the idle SPEED screw out untilyou can feel(and see)that it is having no effect on the throttle link---then screw it out about 3 turns. This should give you a high idle speed when the engine is warm (getting good heat through the heater) and the choke is fully OFF. Back off the idle SPEED screw to slow the idle speed down a bit nearer to the correct idle speed. Then, GENTLY turn the MIXTURE screw IN until the engine starts to run a bit unevenly---and then turn it out until the engine runs smoothly again. Then,back of the SPEED adjustment screw (if required) to get the idle speed correct (which according to "the book of words" is about 700rpm), and then again, turn the MIXTURE screw in until the engine starts to run unevenly and then, as before, gently turn it out until the engine runs smoothly. You may have to do this operation a number times until you get the idle speed/mixture correct. Without a tachometer it is difficult to ascertain 700rpm, but a good indicator is that you are at the correct idle speed when the ignition light is just about flickering (assuming you still have a dynamo on the engine). I hope that this helps you. Before you start adjusting the mixture, remove the idle jet and give it a clean and, if possible,give the adle-jet passage a blow out with an air-line.

 

[stocky]

I think that there may have been a problem with the slow-running jet (aka, idle jet) and this is why the choke was on permanently. It might also mean that the previous owner didn't know how to adjust the carburettor to idle properly. At the risk of "teaching you to suck eggs" may I suggest the following.
GENTLY screw in the idle MIXTURE screw until it stops--and then screw it out 2 complete turns. Then screw the idle SPEED screw out untilyou can feel(and see)that it is having no effect on the throttle link---then screw it out about 3 turns. This should give you a high idle speed when the engine is warm (getting good heat through the heater) and the choke is fully OFF. Back off the idle SPEED screw to slow the idle speed down a bit nearer to the correct idle speed. Then, GENTLY turn the MIXTURE screw IN until the engine starts to run a bit unevenly---and then turn it out until the engine runs smoothly again. Then,back of the SPEED adjustment screw (if required) to get the idle speed correct (which according to "the book of words" is about 700rpm), and then again, turn the MIXTURE screw in until the engine starts to run unevenly and then, as before, gently turn it out until the engine runs smoothly. You may have to do this operation a number times until you get the idle speed/mixture correct. Without a tachometer it is difficult to ascertain 700rpm, but a good indicator is that you are at the correct idle speed when the ignition light is just about flickering (assuming you still have a dynamo on the engine). I hope that this helps you. Before you start adjusting the mixture, remove the idle jet and give it a clean and, if possible,give the adle-jet passage a blow out with an air-line.

Thanks for this I'll give it a try and let you know how it goes.