husqvarna coil..whats going on

[miker]

took coil off known working saw to try on another saw, wouldnt work , put it back on the other saw now it dosent work on there either, i checked gap before i took it off and put it back with same gap????????????????????????

[spudulike]

It is obvious - the first saw was a female one, she is pissed at you for removing her ignition coil and is now refusing to work until you apologise:thumbup:

[miker]

well ive apologised but it still wont give me a spark,i used a metal feeler gauge for gap, im wondering if this has messed anything up, i normally use a piece of thin card

[spudulike]

Oh well - resort to swearing at it.

 

Seriously - you can measure the coil resistance - HT lead to cut out connection should be 1.5k ohms or thereabouts and cut out to earth - around 2 ohms. This tests the coils but little else.

 

If this is ok, it is still possible the electronics that actually generate the timing of the spark have gone down. I have no way of testing this, and don't believe you can.

 

I would disconnect the cut out wire and use a piece of A4 printer paper to set the gap very close and spin it over with a new or known good plug and look for a spark under low light conditions, some saws need a good tug.

 

If you still have no spark, the coil is Fubared and needs throwing in the bin!

 

I am assuming the saw hasn't got a contact breaker or external trigger unit!

 

 

But what do I know:001_rolleyes:

[miker]

ok thanks for the help, have tried disconnecting kill wire and various air gaps, just seems really strange that coil was fine when i took it off the donor saw then when refitted ,its a no go, its a husq 268 btw so nothing fancy, ill order a new coil and see how it goes, cheers mike

[spudulike]

I purchased a 266 that was a non runner with no spark - the previous owner had taken the coil off to clean it and not gapped it correctly - 5 minutes later:thumbup:

 

If it doesn't work with a very small gap then try a much larger one but looks like it has gone bad - a real strange one!

[miker]

well if new coil dosent work, it will be in a box and sent to you to sort out lol, cheers for the input

[spudulike]

No problem - just rebuilt a coil by taking the laminate steel core out of one non worker - driving the laminated core out of a worknig coil of a different type and then rebuilt in to a new coil - saw fired second pull, surprised even myself!

[miker]

now the original coil off the dead saw is now working??? think im going mad

[spudulike]

Sounds like a faulty cap or HT lead - possibly the conductor has cracked and only works in certain positions - buy a multimeter and use that Ohm range - go on....you know it makes sense:thumbup: