My '96 sparks no more

[SA'shee]

So i got my first banshee about a week ago,all original except for FMF pipes and twist throttle and all the TORS wires snipped.

I found the headlights were not working so i took the bulbs out and tested them with an ohm meter and found good continuity upon plugging them back into the sockets the bike died and now there is no spark.

what should i test and how? please help guys as parts are damn expensive here in south africa. Equivalent of $700 for a stator and $850 for a CDI and $100 for a regulator.

thanks guys.

[tedd1]

Read through >THIS<

[SA'shee]

yep,i read through that one and the stator resistances checks out except for the lighting coil that gives 0.00 ohm resistance. the only thing i couldnt test was the CDI as i dont know anybody else with a shee.

could the lighting curcuit cause the CDI to blow as the only share a fuse the way i read the diagram?

[tedd1]

The lighting and ignition circuits are separate.

If you are sure everything else is in good shape, it is probably the CDI. I had one die recently.

[SA'shee]

thanks for the help,now to source another CDI to test with,sounds like its time to start saving A week after paying Eq. of $2300 for it. shit is damn expensive this side of the pond!!!

[yagermeister_07]

i had kind of the same issue with mine last year, on my first ride after a re-build at that. any way did you check and make sure that there are not any burnt wires along the frame near the exhaust? that was what my issue was.

[SA'shee]

Yep checked out the shebang. no detectable problems on the wiring loom. Ive ordered a clymer manual,should get it in about 2 weeks time. thanks for the help and info guys,really appreciated!

[SA'shee]

ok,so i tested everything again today according to yamaha manual found on the net.

........................spec.................................measured value

primary coil......0,28-0,38 ohm .......................0,00 ohm

secondary...... 4,7 - 7,1 kohm .......................0,00 ohm

source coil......13,7-20,5 ohm....................... 38,1 ohm

pickup coil..... 94-140 ohm............................120,3 ohm

 

my dmm goes all the way to 0.00 ohm when i touch the two leads,is it zeroed properly then?

 

it seems the coil is screwed rather than the cdi?

is there a way to test the system with a test light somehow? where should i get what?

 

regarding the lights,some idiot connected the yellow and black wires coming from the lighting coil the wrong way around so guess thats why its not giving any power.

 

any input will be appreciated

[bhatch21]

I think the Clymer manual has an incorrect method for testing the coil. Not sure about the Yamaha one. The primary coil should be tested by probing the two leads of the coil were the wires connect. The secondary test should be to put the + probe in the cap and ground the - probe on the frame. I've heard that coils rarely go out so you may want to check it again.

 

You can also check voltage coming out of the stator while someone kicks it over. The pickup coil sends a low voltage signal to the cdi telling it to fire. If it gets no signal, you get no spark.

Edited March 16, 2012 by bhatch21

[SA'shee]

Thanks for the info bhatch,I had it tested at the KTM shop. the coil has an serious internal short,you can hear it sparking inside. so at lest ive got my problem.

[bansheesandrider]

I think the Clymer manual has an incorrect method for testing the coil. Not sure about the Yamaha one. The primary coil should be tested by probing the two leads of the coil were the wires connect. The secondary test should be to put the + probe in the cap and ground the - probe on the frame. I've heard that coils rarely go out so you may want to check it again.

 

You can also check voltage coming out of the stator while someone kicks it over. The pickup coil sends a low voltage signal to the cdi telling it to fire. If it gets no signal, you get no spark.

Actually that is the way you check a single cylinder coil. On a Banshee, you want to check the secondary resistance by putting each meter lead on a plug wire. Ideally you want to do this with the plug caps removed as they add resistance to the reading.

[bhatch21]

Thanks for the info bhatch,I had it tested at the KTM shop. the coil has an serious internal short,you can hear it sparking inside. so at lest ive got my problem.

Glad you got it figured out.