Pushme/pullyou 4 junkyard contest

Dan I have no idea just sounds really Cool.

Greg

Do it! Post pictures as you go.

Yes sireee bob, I mean Dan, I would love to see pictures of that. Sounds really cool.....................

hi dan; i think you will have trouble if you hook it up with a swivel or ball. the power unit needs to be a solid hitch, usually to rear frame or seat post. the reason is that a swivel will cause a jack knife and push your bike on its side. there are pics of seat post in search. another idea is to use an old mini bike with briggs and straton, remove front wheel and bars, use a bent pipe to seat post. ride safe. mitch

just for reference... YouTube - Motorized bicycle motor.

Seems to be a good design.

Good luck with the build, can't wait to see it.

that lever could be for the engine idle. On my old tiller it has one just like that and it has a spring on it to keep the idle the same. I think.

It could be the remains of an idle regulator. Alot of the old stationary engines had them.

The idea was that, for example, a Lister D engine would chug along at 600-1000 or so rpm for ever once you got the thing to start. If you had a load on the flywheel like a milling machine or something which needed a fair amount of torque - if there was a sudden need for power the engine revs would drop and if the load was high enough it would stall the engine out.

On the lister there is a large bowl type thing on the side of the motor which I think housed a diapragm - this had a linkage that ran to a swivel - then across the motor under the carb - to another swivel - and to the carburettor swivel linkage itself (the carb is an amal). The idea was that when the widget inside the bowl detected that the engine was slowing off or had come under load it would automatically adjust the throttle position to maintain the set rpms. The one I had and is still at my parents place is a rare one as it is the oldest known with a chain drive magneto assm.

Given the position of your errant bit of engine - it being in line with the carb on the same plane and same side of the motor this might be what it is. if that is the case and you get the engine running - revving the motor should mean this 'lever' moves as it would when the thing was connected to the carb throttle butterfly...

just a thought

Jemma xx

what he said. thank you know I know and knowing is half the battle. GO JOE!!

Dan said:

Jemma, Neko yeppers! you are absolutely right. Thankx. Was driving me mad trying to figure it out. A bud of mine and truly gifted wrench-er took one look and said exactly what you said. Now just have to rig it back in. Gonna do the trial and error thing.

Found a universal radio seat today. going to experiment with a hitch that just goes up and down, but does not twist. All who told me not to do the ball and hitch thing were right. (gotta watch me every minute)

Lord this is fun.

Click to expand...

You might want to hold off when it comes to reconnecting an idle regulator for the following reason. A lister could theoretically run up to 2500rpm (even with the naff splash lubrication) but the regulator was there to make sure a piston the size of your fist didnt suddenly punch its way out and meet with someones body part (gods know nothing on a farm in them days was safe, not even many of the farmers would pass modern health and safety). Its likely that the regulator gubbins will not allow the engine to rev to its full potential when its all connected up. Probably not what you want in a bike application - unless of course you wire it up indepandantly as some sort of cruise control regulator... now theres a thought lol

I'll tell you a story from my past. When I first got a Humber Sceptre I was confuzzled by the lever on the right hand side of the steering column. All it did with the ignition on was make a solenoid go click and light up a little indicator and I could see no other function for it at all...
First time I took the car out on the road - I was happily trundling (for trundling read 55mph down a backroad) along and remembered that switch. Pushed the switch down - and promptly found 6th gear - and thats how Jemma learned about overdrive...
Scant seconds later she learned why you always dip the clutch when disengaging overdrive too.... headbutting the steering wheel hurts

Basically once you have seen something, you know what it is - until you have its often a mystery, specially since alot of the old tech used very simple mechanical feedback systems where these days we'd use electronics...

Remind me to tell you the story about how I left the lights on one time - spent over an hour trying to push start the humber on my own... (120lbs versus just over a ton) and then remembered about the starting handle in the boot.....

Jemma xx