Wifes Sportster missing again
#11
10-13-2011 | 10:08 AM
Tourer
Joined: Sep 2011
Posts: 254
Likes: 1
From: Ohio
did the bike have the Stage III mods when you got it? If so, you said it has a bad coil when you got it, maybe the mod is too much for the factory coil; might be burning it up prematurely. you might be able to check the coil with your multi meter if it has a capacitance setting on it. Most basic meters do not. If you're going to shell out the dinero for a new coil, i'd beef it up to a performance module; it will probably save you money in the long run. Might need to get SE wires n plugs too just for good continuity with a hi-perf coil.
Capacitance? A coil will have inductance and resistance, not capacitance. Using a multimeter to test a coil is useless. Only dead shorts will show in a coil. As you know there is high voltage running through the coil and the multimeter measures resistance with a very low voltage. The short could be occuring only when high voltage is running through the coil, therefore a ring test is appropriate for a coil. If you can't ring test and suspect the coil, replace it the coil anyways.
#12
10-13-2011 | 11:07 AM
Intermediate
Joined: Oct 2011
Posts: 27
Likes: 0
From: virginia
if you have a capacitor also (should have said this initially) you can test a coil using a cap and a multi-meter that has the cap function on it, you have to set it up in a certain fashion, i should have been a little more specific but didn't imagine slyder has a high end fluke meter basically a fluke w/ the o'scope built into it. I am very aware that coils create high voltage and rely on the principles of inductance and resistance. IF you have a cap w/in the required power spectum for the application you can recreate a more advance ignition system and test the product of the coil through the capacitance droop and see if the coil is actually producing the required hi voltage under load.......... M.A.S EE
#13
10-13-2011 | 11:17 AM
Tourer
Joined: Sep 2011
Posts: 254
Likes: 1
From: Ohio
if you have a capacitor also (should have said this initially) you can test a coil using a cap and a multi-meter that has the cap function on it, you have to set it up in a certain fashion, i should have been a little more specific but didn't imagine slyder has a high end fluke meter basically a fluke w/ the o'scope built into it. I am very aware that coils create high voltage and rely on the principles of inductance and resistance. IF you have a cap w/in the required power spectum for the application you can recreate a more advance ignition system and test the product of the coil through the capacitance droop and see if the coil is actually producing the required hi voltage under load.......... M.A.S EE
I see what you are saying now. You are setting up a simple ring tester!!
#14
10-13-2011 | 11:23 AM
Intermediate
Joined: Oct 2011
Posts: 27
Likes: 0
From: virginia
#15
10-13-2011 | 04:02 PM
Thread Starter
|
Road Master
Joined: Nov 2010
Posts: 1,156
Likes: 1
From: Nebraska
yeah its got the stock ignition in it. Previous owner did all the mods. My wife picked it up on ebay without me knowing. She called me at work and told me she bought her own bike. Paid $4000 for it. The owner put more than that in the motor. Runs like a raped ape when its running good. She basically bought the motor cause all the chrome is trashed from salt air. So I have a winter project anyhow. She wants it painted and all the chrome redone. Also wants the frame painted to match. That should just about take care of all her christmas and birthday presents for the next 10 years.
Thread
Thread Starter
Forum
Replies
Last Post
MotoOwner
Ignition/Tuner/ECM/Fuel Injection
16
03-30-2019 10:58 PM
