088 fouled plug, weak spark

[joemarty]

my new stihl 088 fouled its frist spark plug. i am running it full rich 32/1 with amsoil. put new plug in it and can"t get it to start. Check spark with my dogs toung did not get as much yelp as i would like. Had my son hold plug well i pulled saw, not much of reaction either. I can see blue spark must not be enough. what do you all think.

joemarty looking for new spark testers

 

[treeclimber165]

Before spending a bunch of money on electrical parts, I'd try another plug. Sometimes duds run in batches, try another brand. I'd check gap on the flywheel/ignition module, matchbook thickness. Clean, good sparkplug wire, good connections, etc.

 

[Treeman14]

Your dog is getting old and your son's brain is fried from playing Nintendo 8 hours a day. Just a WAG.

 

[stihltech]

Try new plug first. NO champions! I stick with Bosch religiously. Get 50 to 1 Stihl oil in it. We have not used 32 to 1 in 18 years. Richer is NOT better. Clean air filter.
If none of this works, get it back to the dealer.

 

[joemarty]

no games in the house for kids. just teaching him a about life. what sparke plug do you like stihl tech number etc. saw was running fine when but away. next day no sparke. ing. parts have life time warranty wright?

 

[stihltech]

088

Yes lifetime on ignition. I don,t remember the number of the plug, but a Stihl dealer only carries 3, one for saws, 1 for older cutoff saws, and 1 for older brushcutters.
Wait I found one. WSR6F.

 

[joemarty]

stihl tech lets say spark plug dose not help. should i take it in for warrntey work.

 

[Dennis]

lmao..treeman...good call...

Joe..have seen many an ignition work just great when tested...but not fire under compression...dont have a clue why...but it happens...same as plugs...same happens... ...personally I use Bosch as well.. refuse to use Champion as once an electrode broke partly off a new saw and..well...we all know powersaws love extra parts in the combustion chamber...Champion wouldnt cover it an neither would the manufacturer...until we made a serious fight over it...then the manufacturer coughed up...as if they shouldnt have to start with??? (this was many...10? years ago)

 

[treeclimber165]

I see that joemarty gradiated from the same 'Hookd on Foneks' class as JPS!

No offense intended, quit hittin' me!!!

 

[joemarty]

tree man you"ll must have same problem cents you can read it, knows whats it means.

joemarty stills needs that fire in saw to make work

 

[Newfie]

Drop one of those osage trees on it, no more problems!

 

[Acer]

Originally posted by Dennis
lmao..treeman...good call...

Joe..have seen many an ignition work just great when tested...but not fire under compression...dont have a clue why...but it happens...same as plugs...same happens...

One of my instructors told me that. Its because its harder for a spark to jump from one electrode to another under pressure. If you test your plug at atmospheric pressure and you see a spark, it doesn't mean to say it can spark when its put back in the cylinder and tried under compression. He had a test plug with an electrode gap of 4 mm or so. If that sparked at atmospheric, then the ignition was fine.

 

[stihltech]

088

I use the old B&S spark tester with an adjustable gap. Simple and works every time. Keep the gap opened way up.
And yes, if that does not fix it, take it in for warranty.

 

[joemarty]

what spark plug gap do you all like. what about gap at fly whell.