Texasstar
Can't is a four letter dirty word
I haven't used a Bultaco kill switch for maybe 40 years or more, they were pretty poor quality. If there is any doubt about the switch just swap it out. Looking at the wiring diagram for the Pingel air shifter it appears to be set up for an inductive ignition system. It might work with a CDI (which I assume the Zeel is) but it wouldn't be good for it - there would be spikes in the primary circuit as the output to the coil is broken during shifts. The Pingel switchgear would subjected to some pretty high voltage as well. If you really must use the Zeel I'd set it up so the primary side is grounded rather than broken during the shift.
I know I've said this a hundred times but I'll say it one more time then I'll stay out of this altogether - you're making this much harder on yourself than it has to be. Take anything off the bike that isn't absolutely necessary or disconnect it until you get the engine tuned. Once it's running strongly and consistently you can add the trick stuff one piece at a time, so if any problems appear you'll know what's the culprit. I'm trying to help you but feel like I'm wasting my time.
No don’t stay out...I kid you not I looked at the 90 whp quad running 6.5 in the 1/8 and thought to myself. “John would have built this.” No air shifter, no electronic ignition, bare bones, balls to the walls. 175 lbs on meth.
So I have been running without the right hand Bultaco kill switch until last week and hooked it up to the Zeeltronic.
Just like you could tell me how the puddle was forming in the cases and what was happening in the engine, without seeing in the engine. (I presume) I can now imagine what the Bultaco kill switch flap of metal is doing under the rubber button going down the track. Better yet I felt it. There was something electrical shorting.
It died in the same place on the track on two of the runs but didn’t on the third run. Why? The first run I kept cracking the throttle wide open and it died all the way down the track. The second run after nose diving you can hear me get on the rev limiter on the second shift and then with throttle control it was fine.
The only thing different I did on the third run was keep the bike at the shift light (7500 rpms) all the way down the track. Didn’t die and no hiccups. Clean pass.
So my thought was I was over revving putting it on the rev limiter and also causing the bike to bog and lose momentum. I have never had a bike where I barely crack the throttle and it is at its max like the Bull is now.
I am still not convinced the zeel is reading the correct RPM.
We checked the fuel flow, had a stuck rear brake, had electrical gremlins. Fixing all those before we change out the jets.
I think the zeel has a programmable shift kill in it where we can get rid of the pingel air shift kill.
Will go do some reading that will eliminate having to interrupt at the coil.
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