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Engine Not firing, suspected carb issue
- emptypond
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the black rotor in the picture.
I have verified the spark on all cylinders, but possibly, I'm timing it wrong. I have tried timing it different ways both statically, as the bike doesn't stay running long enough for me to use a timing light. I tried timing 1-4 to the "T" mark, without advancing the assembly and I tried timing to the "F" mark, by hand moving the rotor to complete the spark. Since I've been playing with that all day, checking and re-checking, I've thrown the battery on the tender for the evening (it's a brand new battery) and I can't say for sure if the 1-4 at "T" works better than hand advancing when the mark is on "F". Hopefully that makes sense... I appreciate all your input!
81 kz750 frame, with an 83 kz750 engine.
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- Motor Head
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- FIX UP YOUR BIKE RIGHT AND CHEAP
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Even when cranking, you should be able to use your timing light to verify the base setting.
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- koolaid_kid
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1983 GPz 750
810 Wiseco, Kerker, K&N, DynoJet S3, Accel, Progressive, etc.
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- emptypond
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My issue is this now- I get spark visually on ALL 4 cylinders, with the wire and plugs out and I'm physically looking at the plug firing. When I put them back in, and hook up the test light, the light only works on cylinder #2, which is the only cylinder that was working before. I'm thinking maybe this is a ground issue? It's not the coils, as I switched them around and the same thing happened, and all four spark plugs spark when outside the bike. I have all new wires, all new plugs, and a DYNA S ignition. What could this be???
81 kz750 frame, with an 83 kz750 engine.
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- koolaid_kid
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1983 GPz 750
810 Wiseco, Kerker, K&N, DynoJet S3, Accel, Progressive, etc.
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- emptypond
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81 kz750 frame, with an 83 kz750 engine.
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- koolaid_kid
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1983 GPz 750
810 Wiseco, Kerker, K&N, DynoJet S3, Accel, Progressive, etc.
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- emptypond
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81 kz750 frame, with an 83 kz750 engine.
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- Motor Head
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- FIX UP YOUR BIKE RIGHT AND CHEAP
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Also what Voltage is measured across the battery terminals, then across the coil primary terminals? Same? Or is there voltage drop?
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- emptypond
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81 kz750 frame, with an 83 kz750 engine.
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- Motor Head
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- FIX UP YOUR BIKE RIGHT AND CHEAP
- Posts: 5138
- Thank you received: 391
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- koolaid_kid
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Please do not double post. You will get conflicting messages. We will continue helping you here.emptypond wrote: It's odd, because one cylinder is sparking and the light works on that one, and only that one. could it be it's not picking up the strength of the spark? I should probably move this thread to the electrical section too...
1983 GPz 750
810 Wiseco, Kerker, K&N, DynoJet S3, Accel, Progressive, etc.
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