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Dyna coil failure...overcharging system?
- madmatt1
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1977 KZ1000 LTD
1977 KZ1000A
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- Old Man Rock
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1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
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- Old Man Rock
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1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
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- madmatt1
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- Thank you received: 15
1977 KZ1000 LTD
1977 KZ1000A
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- Old Man Rock
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Granted, not as good as running but if severely damaged, dead short, open etc... the meter will detect this....
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
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- otakar
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74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000
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- TeK9iNe
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- What did you do!?!
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I don't think that higher voltage would hurt the coils. My new MSD ignition pumps 400 Volts into the coils.
What the... ??? Why?
400 Volts... what kind of amperage?
:huh:
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
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- MFolks
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If the supplied screws are too lost and replacements are used they maybe too long, they will bottom out before the screw gets tight.
Do you live in a humid,salty environment? Are the wires going to the coil properly crimped? I'd suggest checking the wiring for insulation damage too.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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- steell
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KD9JUR
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- loudhvx
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- KZr Legend
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Pretty hard to get that starter to turn with a 20A fuse in the positive battery cable. :blink: :laugh:
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- loudhvx
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otakar wrote:
I don't think that higher voltage would hurt the coils. My new MSD ignition pumps 400 Volts into the coils.
What the... ??? Why?
400 Volts... what kind of amperage?
:huh:
It's CDI. CDI systems hit the coils with a big spike of voltage. The coil just acts like a transformer unlike in a standard KZ ignition where it actually stores energy.
However, the coils in the standard KZ ignition also get a spike of several hundred volts on them right when the points open, or right when the igniter lifts the ground side of the coil.
In CDI, the module generates the high voltage, in standard (Kettering) ignition, the coil generates the high voltage. Both of these are on the primary side of the coil. The coil steps up this several hundred volt spike into several thousands of volts at the plugs.
After the spark initiates, the voltage (on primary and high-tension side) drops to a much lower level.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- loudhvx
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- KZr Legend
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With MSD or any CDI, the current is only in a super short pulse so there is no real heat issue to worry about. (Dyna S is electronic Kettering, not CDI.)
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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