power to coil problem
6th Gear
Joined: Oct 2018
Posts: 14
Likes: 0
From: Mesa Arizona.
Weak spark after putting on new coil, on79 shovel custom frame and not factory wiring
I replaced my coil on my 79 shovel engine because of weak spark thinking that was the problem, but its still weak, the bike won't start, has new battery but can't check under load cause bike won't run, what should I check next, plugs are new but plug wires are old but check out OK with multi meter continuity? Any help would be appreciated.
I replaced a few expensive parts before figuring this one out LOL! Expensive lesson
Road Master
Joined: Nov 2018
Posts: 874
Likes: 159
From: FLORIDA
wow I had fire under my seat until I found out
the coil fires better with fourteen gage wire from the ignition
to the coil and another thing if the ohms are incorrect it won't fire in the case
of mine it will only fire on a 3 ohm coil and nothing else
the coil fires better with fourteen gage wire from the ignition
to the coil and another thing if the ohms are incorrect it won't fire in the case
of mine it will only fire on a 3 ohm coil and nothing else
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,603
Likes: 3,374
From: Cental, MI
Something is very wrong.... What [Exact] components???? Chiwanese maybe?? The size of the wire has very little to do with it... Big enough is... well big enough... More ain't any better...
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
you missed the part about he was hungry and they had hot dogs so they fit across the frame top and it seemed like a good idea at the time
Stage I
Joined: Apr 2020
Posts: 1
Likes: 0
From: Philippines
0V supply voltage to coil if connected, but if disconnected voltage is 10V
My 440cc swm gran milano motorcycle crank but not starting. I checked ignition coil, resistance is 1ohm. If I disconnect the coil, i measured voltage 10V, if I connected the coil, voltage is 0V. What could be the problem, I suspected ECU. I already checked all plugin wiring connections. Battery is new. Kill switch is ok. Fuel pump, horn, lights are running. Please advise.
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