Stihl 066

[woodbodger]

Hi I have a 1997 066 which is a non runner, I have cleaned all the carb and pipes, I have a spark but am not convinced by it as it requires a really fast pull on the starter cord to produce it so am suspecting the coil (marked 1122 1312). Searching on line I can find no one selling a coil for this model and wonder if any of you have any experience, How good should the spark be? I have previous experience of useless and expensive repair work by a dealer and am reluctant to go that route. Know anyone reliable around Carmarthen in lovely Wales? Thanks

[tommer9]

As i understand it the coil either works fine or not at all, there is no middle ground. Are you getting fuel to the plug? Is it wet after turning the engine over?

[Mesterh]

It shouldn't take much effort to get a spark especially if you have the plug out at the time.

 

I would be checking the ht lead for damage and give it and coil agood clean before buying a new coil. The one from a ms660 should fit, speak ti Jonsie on here, f r jones is his trade on right hand side of screen.

[ukminch]

As i understand it the coil either works fine or not at all, there is no middle ground. Are you getting fuel to the plug? Is it wet after turning the engine over?

 

I had a lot of problems diagnosing a problem on a strimmer. It turn out coils can be intermitently faulty. This was on an echo strimmer. I've had it happen on 3 or 4 of them so obviously a fault that occurs with them over time. Must admit I haven't had it happen on anything else, (other than a mini - but i don't think that counts...)

 

R

[rotax81]

a bit obvious but have you tried a new plug? (new and not a cleaned one)

coils normally pack in completely or pack in when they get hot

[woodbodger]

Yes I sort of thought the coil would be **** or bust: I have just striped the saw down cleaned it and re-assy and no spark now. The ht lead looks fine but is part of the coil assy

[elfinwood saws]

i think most coils from 024 upwards fit, so try another coil.

[elfinwood saws]

check that it has enough compression as well

[woodbodger]

Compression we have along with new spark plug but no vroom it seems that the ignition coil for the 066 can be problematic because earlier models had a speed limiter, I am just caught between going out and buying an expensive new coil and finding that my diagnosis is wrong or going to bodgit and sons down the road and having them change every part they can think of until they find the problem and sticking me with a huge bill

[swinny]

is the earth wire contacting anywhere, thus making no spark?