Say guys, I forgot which inlet was the primer inlet?!?! I'm omitting the primer on mine. There's two inlets on my carb, on e on the needle side, and one w/bend on the other. It's a Zama, but similar to Walbros.
I am not sure without seeing it.
I mounted my ignition today with a little shadetree engineering. I'll try to get pics tomorrow night. Looks like I'm getting good spark, but anyone on here have any suggestions as to how far away the magnet can be from the pulse switch and still work okay? I've got a pretty good gap, I'd say about .035" without measuring it and seems to work fine. I noticed, however, that while rotating the crank back and forth with the magnet under the switch that it would 'miss' a spark here and there. Is this normal? I wasn't going full revolutions, just rocking it back and forth under the switch. I'm waiting for the JB Weld to cure now, but I am going to try and run this thing for the first time tomorrow. Here is my setup:
I as playing with mine and i noticed it didnt like much gap at all. I had my magnet stuck to a exacto knife blade and was just passing it over the pick up. It is polarity sensitive on the magnet as someone pointed out before. In my opinion I would set it up much like a mag ignition. .035 seems like a lot of gap. i use a bussiness card to set up my mags.
Older jug, two single large ports (and no 'slits'), large crankcase, factory 7.2mm carb, CDI set at 28deg, stock unmodified muffler, new piston (2 ring, no gap), cylinder base gasket installed (piston hits jug without it), non-recessed reed mount with stop set at 1/8" and no bends, except to get the reed to sit tight on the backplate with no gaps.
Ok this is just a prediction and a guess but i think your gona see an rpm of 6300-6400 rpm. I may bee off on this as im not sure what the cdi will do but it should be interesting.
I got a chance to work on my test stand today. here is what i got so far. I welded two angle iron pieces for the runners to a 3 inch piece of channel. I hope the pictures make sense and you can see where this is going. It will all become more clear when i get closer to completion which should be wensday and i should get to run another test to.
I am going to screw the rail trolleys to a piece of wood deck. I like the wood deck as it is easy to screw things to for different experiments.