Ran when parked two weeks ago now nothing?

speirmoor · Mar 22, 2015

Ran when parked two weeks ago now nothing. Usually starts first or second kick today nothing. Battery is charged, Fuse ok,lights are bright,horn is loud etc. Kill switch ok. Fuel shows up at Amals ticklers.Is that enough or will I need to check the jets?
Maybe its spark? how does one test with a TriSpark and the single coil conversion?

kerinorton · Mar 22, 2015

pull the plugs out, connect them into the h/t leads and rest them on the head. turn ign on and kick engine over. you should se spark at both plugs. If not, check for broken wires especially in the timing housing.
Dereck

vuuduu21 · Mar 22, 2015

Also check your ignition switch and kill switch wires & contacts

tomspro · Mar 23, 2015

Quick carb cleaning might help. Remove the bowls and dump the gas. May be some grit in there.
Note number of turns out and remove the pilot screws.
Blast some carb leaner thru the pilot screw holes.
Replace and try starting again.
Has worked for me when passages get fowled from gas crud.
If you do not have them, I find fuel filters very helpful to minimize this problem.

mschmitz57 · Mar 23, 2015

Kill switch stuck on?

speirmoor · Mar 23, 2015

kerinorton said:
pull the plugs out, connect them into the h/t leads and rest them on the head. turn ign on and kick engine over. you should se spark at both plugs. If not, check for broken wires especially in the timing housing.
Dereck

I tried this tonight and no spark. Opened up points cover and poked around with the meter. Trispark is getting 13v . There's continuity between the wire going to the coil and the frame. That cant be right can it?

pete.v · Mar 23, 2015

speirmoor said:
kerinorton said:

pull the plugs out, connect them into the h/t leads and rest them on the head. turn ign on and kick engine over. you should se spark at both plugs. If not, check for broken wires especially in the timing housing.
Dereck

Click to expand...

I tried this tonight and no spark. Opened up points cover and poked around with the meter. Trispark is getting 13v . There's continuity between the wire going to the coil and the frame. That cant be right can it?

There would/should be continuity from one side of the coil to the frame. The other side that is fed from the Trispark should NOT show grounded to the frame. If this is the case them you better run a new wire from the TriSpark to the non grounded side of the coil.

speirmoor · Mar 23, 2015

Thanks for the confirmation Pete. Going to do that next

speirmoor · Mar 31, 2015

This is driving me nuts. The new wire came last week and I put it on yesterday but no result. The Coil is still grounding to the frame even when that wire is left off the terminal . I know one side is deliberately grounded but Its not that one. Could the coil be shot?
Funny thing is it ran for like 3mins (once) and cut out suddenly never to start again.

kommando · Mar 31, 2015

I had this problem, the coil outer case was warped from the mounting brackets and hit the internal coils, no spark.

Reggie · Mar 31, 2015

Which version of the Trispark do you have? If it's not the latest version, it could be the Trispark that's faulty. Do you have any "Norton friends" locally who could temporarily loan you one to try?
When my Trispark went wrong, I fitted a friends Boyer just to prove the point. A bit of hassle doing new temporary wiring but I got the answer.
When you're checking for a spark, are you doing it in dimly lit conditions? Sometimes they're not easy to see.

On my bike which has twin coils, if I leave all of the wiring connected, where the Trispark comes to the first coil, I get continuity with the frame, but if I disconnect the earth lead on the second coil, then there is no continuity between the first coil/ where the Trispark connects and earth.

From what you've said, usually an easy starter etc, I do suspect the Trispark having had two fail on me. I'm running the latest version now which is supposed to be a lot more reliable. I will see.

speirmoor · Mar 31, 2015

I have the Tri-Spark since 2012. Is this the latest version? I also switched to the Dual fire coil at the same time

L.A.B. · Mar 31, 2015

speirmoor said:
The Coil is still grounding to the frame even when that wire is left off the terminal . I know one side is deliberately grounded but Its not that one.

As there would normally be continuity between the dual coil primary terminals (as they are at opposite ends of the same piece of wire) it follows that you should see continuity between the coil terminal on the Tri-Spark 'side' and ground when the other terminal is connected to ground.

Reggie · Mar 31, 2015

The older type of Trispark.

Ran when parked two weeks ago now nothing?

The newer type of Trispark.

speirmoor · Mar 31, 2015

L.A.B. said:
speirmoor said:

The Coil is still grounding to the frame even when that wire is left off the terminal . I know one side is deliberately grounded but Its not that one.

Click to expand...

As there would normally be continuity between the dual coil primary terminals (as they are at opposite ends of the same piece of wire) it follows that you should see continuity between the coil terminal on the Tri-Spark 'side' and ground when the other terminal is connected to ground.

Thanks LAB that helps

speirmoor · Mar 31, 2015

Reggie said:
The older type of Trispark.

The newer type of Trispark.

Thanks Reggie I have the old one

I wonder if they will entertain a replacement? Did you have any luck in that dept? In the meantime I have a Boyer somewhere that I'll trouble shoot with

Reggie · Mar 31, 2015

Hi speirmoor, I've sent you a pm.

Reggie · Apr 2, 2015

speirmoor, I don't know if this is of any interest to you, but I have had a look at my motorcycle electric repair and troubleshooting book, and have looked up how to test for shorts or "opens" on coils.
These are the estimated values for testing a "dual plug coil," which you say you have fitted. Obviously there will be specific values for a given coil, but as a guideline, it says that the primary windings, which are tested by joining with your "multimeter" the power terminal and earth terminal on a dual coil, you should get a reading of between 0.5 and 3 ohms.
Then to test the secondary winding, connect the two high voltage towers together with your "multimeter"and you should get an ohms reading of between 5,000 and 10,000 ohms.

These values are different to a conventional coil as the primary and secondary windings are not connected together on a dual plug coil. Also the above values will not absolutely be conclusive as a fault may only become apparent with vibration or when the coil has warmed up.

Ran when parked two weeks ago now nothing?

speirmoor

kerinorton

vuuduu21

tomspro

mschmitz57

speirmoor

pete.v

speirmoor

speirmoor

kommando

Reggie

speirmoor

L.A.B.

Moderator

Reggie

speirmoor

speirmoor

Reggie

Reggie

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