Symptoms of too much timing advance

[Mycamaro_68]

Alright guys, I have a few saws that I plan to play with a little bit, starting with muffler mods and gasket deletes then possibly timing advance and porting.

I am curious as to what happens if you advance too far. I assume it would have starting issues like popping back against the starter but really don't know. Would it become doggy in the cut? Run too hot? Any input would be appreciated.

Thanks, Ryan

 

[wigglesworth]

Biggest sign is popping/cutting out in the cut.

That and ripping the recoil out of ur hand...

 

[Guido Salvage]

Broken arm and missing fingers...

 

[Brush Ape]

Getting a drink throwed in your face or getting slapped.

 

[ft. churchill]

The saw gets harder to start (harder to pull on the rope) and the saw will start to "kick back". It'll rip the cord and pull handle out of your fingers. I dunno what happens if you go further advanced than that.

 

[cus_deluxe]

Getting a drink throwed in your face or getting slapped.

this is not the type of unwanted advance that you are used to sir.

 

[Mycamaro_68]

Thanks for the input guys!

 

[pro94lt]

If to far it will spark well before top dead center. And the kick back is the fuel igniting forcing the piston down before it has revolved the crank to go down correctly. It could even spark and give you the backfire through the exhaust. Anyone ever put a distributor in backwards in a small block Chevy? Firing with the valves open

 

[Mastermind]

Biggest sign is popping/cutting out in the cut.

That and ripping the recoil out of ur hand...

This ^^^^^

 

[295 tramp]

That and ripping the recoil out of ur hand

Hell I get that sometimes when I forget to use the CR on my MM 084

 

[TJ the Chainsaw Mechanic]

I've had factory saws rip the recoil outta my hand...those 044's hurt the most. lol

 

[jmssaws]

I've never had a stihl pop but have had plenty of huskys do it.

 

[Adirondackstihl]

How much is removed from a key to give most STIHLs the optimum amount of advance?

Thinking of advancing the timing on Daves Hybrid

 

[Jon1212]

How much is removed from a key to give most STIHLs the optimum amount of advance?

Thinking of advancing the timing on Daves Hybrid

 

[jmssaws]

I take 030 to 040 off a play saw,020 on a work saw

 

[Guido Salvage]

I've had factory saws rip the recoil outta my hand...those 044's hurt the most. lol

One of my Poulan 655's is the worse, every time you pull you need to set the decomp every time or it will shred your fingers.

 

[jmssaws]

I have a ported 5200 that's advanced a little and it takes no prisoners.

 

[Keith Gandy]

My 064 non decomp with 30 off key kicks sometimes if u dont find tdc 1st

 

[MustangMike]

I usually do 20/1000, which is a # I stole from Randy. I think he said he usually did not find any benefit of going past that amount. Also, I would rather not over do it.

 

[ft. churchill]

Remember that on saws like my 064 without a decomp, advanced timing is harder on the starter.