No spark on right side---

jsmith1107 · Post by **jsmith1107** » Tue Jun 25, 2013 10:27 pm

Ok, I was just in the garage and did some testing. When I have the carboard in between the points, I have 12 V at the points. When the points are together I stuck the positive of the meter inside the spark plug holder and the ground to the engine and it also shows 12V. However, when I put the spark plug in there again (another new one) and turn it over, I get the left side to spark at the plug but once again, it arcs between the points on the right side.

I can't download a picture right now but it is definitely the right coil. I looked up coils on EBAY and it is actually called H500 Coils.

Ideas on why it is still arcing between the points?

LOUD MOUSE · Post by **LOUD MOUSE** » Wed Jun 26, 2013 6:14 am

Have you swapped the coils to prove your statement?. ........lm

jsmith1107 wrote:Ok, I was just in the garage and did some testing. When I have the carboard in between the points, I have 12 V at the points. When the points are together I stuck the positive of the meter inside the spark plug holder and the ground to the engine and it also shows 12V. However, when I put the spark plug in there again (another new one) and turn it over, I get the left side to spark at the plug but once again, it arcs between the points on the right side.

I can't download a picture right now but it is definitely the right coil. I looked up coils on EBAY and it is actually called H500 Coils.

Ideas on why it is still arcing between the points?

jsmith1107 · Post by **jsmith1107** » Wed Jun 26, 2013 8:29 am

Ed, I got your email and will set the points as you said in your tuning recipe. I have not swapped out coils yet---I don't have another coil to try. I do have another set of points with the back plate and a condenser, should I try that first and then if it doesn't work, go from there with the coil? The set I have was from another bike I took apart so it has been used.

ahenthus · Post by **ahenthus** » Wed Jun 26, 2013 9:36 am

I believe Ed means for you to swap the coils by reversing them to see if your problem migrates to the opposite side.

jsmith1107 · Post by **jsmith1107** » Wed Jun 26, 2013 10:33 am

How would I do that on this coil setup though?

mike in idaho · Post by **mike in idaho** » Wed Jun 26, 2013 2:04 pm

Swap the points connections to the coils.

jensey · Post by **jensey** » Thu Jun 27, 2013 12:44 am

Hi,

Yes, a bad condenser could be the culprit, but there's another reason for arcing across the points. It's not so common as a bad condenser, but sometimes the arcing isn't solved with swapping the condenser.

A condenser is connected parallel over the points (via ground). If the energy of this system (points / condenser) can't find "a way out", it will arc over the points, for example when a coil isn't connected properly.

Check if your coil of the right side is connected properly, or check if the coil is working. Check if the wiring to the coil is connected properly and check the connectors for oxidation.

It's advisable to swap coils for a while, or to use a spare coil to confirm that the mounted coil or wiring is working properly.

Jensen