Husky Coil College

[XP_Slinger]

Good info Bob. I remember when I swapped a black coil into my 372XT at Walt’s the idle increased by about 1500 rpm and I had to bring it down with carb adjustments. In your opinion: do you think the blue coils have an advantage over the black coils in their advance curve? Talking overall performance not just ease of starting. Thanks

 

[Chainsaw Jim]

Good info Bob. I remember when I swapped a black coil into my 372XT at Walt’s the idle increased by about 1500 rpm and I had to bring it down with carb adjustments. In your opinion: do you think the blue coils have an advantage over the black coils in their advance curve? Talking overall performance not just ease of starting. Thanks

What's the part number stamped on that black coil?

 

[XP_Slinger]

Ill get the number tomorrow...

 

[angelo c]

Did you change the flywheel?

not yet. but im willing.

 

[mdavlee]

I had one black coil that ran noticeably better on saws than the others. It had a good sticker on it and I had to drill the mounting holes out to out it on a 372

 

[EvilRoySlade]

If I'm not mistaken Ed Heard did that shortly after they first came out Jim.

No idea what coil he was using.

Ed machined an adapter plate to mount a regular carb. I’d need to dig up the info but I thought he un-stratoed it.

 

[Spike60]

To hold your house down, in case of high winds?

Haha!

I think the super was 70cc and the rest of the 041's were 60cc? So, it brings the engine size more in line with the weight.

Found it in a barn full of saws a few years ago. Former Stihl/Jonsered/Homelite dealer over in MA. Place was just loaded with saws, mostly old stihls and homies. Half were toast, but many were trade ins that they never did anything with, so it didn't take much to get them running.

I gave all the other stihls away;, 031's, 032's, 045, 056, 028's, 038, 042. The 045 ran really well for whatever displacement they are. I honestly think I kept the 041 cause is has one of the best exhaust notes out there. Especially at idle. Plus the Stihl guys can't call me a "saw bigot" as long as I own one.

 

[Spike60]

Good info Bob. I remember when I swapped a black coil into my 372XT at Walt’s the idle increased by about 1500 rpm and I had to bring it down with carb adjustments. In your opinion: do you think the blue coils have an advantage over the black coils in their advance curve? Talking overall performance not just ease of starting. Thanks

The first XT's were a royal pain to get to idle correctly. The first coil change was to a coil with a digital advance. The advance was supposed to kick in at about the same RPM as clutch engagement, which is about 3500. But you'd get this real annoying surging with some of the early saws at an lower RPM as the advance was kicking in and out. And they'd all come out of the box with the idle a little too high making it worse.

There was also a change to the carb at the same time and the SB said that you had to change them together. Never really understood that as there's no electronic connection to the carb. Some of this came into play when you swapped coils at Walt's.

I'll put some part numbers up later today. It's really the XT's where you'll notice some of this stuff. The 372OE's weren't as fussy with the coils.

 

[cus_deluxe]

Haha!

I think the super was 70cc and the rest of the 041's were 60cc? So, it brings the engine size more in line with the weight.

Found it in a barn full of saws a few years ago. Former Stihl/Jonsered/Homelite dealer over in MA. Place was just loaded with saws, mostly old stihls and homies. Half were toast, but many were trade ins that they never did anything with, so it didn't take much to get them running.

I gave all the other stihls away;, 031's, 032's, 045, 056, 028's, 038, 042. The 045 ran really well for whatever displacement they are. I honestly think I kept the 041 cause is has one of the best exhaust notes out there. Especially at idle. Plus the Stihl guys can't call me a "saw bigot" as long as I own one.

Yeah that seems about right for displacement. I have an 041fb on a shelf, pretty nice shape actually, but sat for a long time with water in it, so on the shelf it shall remain...cool lookin old saws tho actually.

 

[afleetcommand]

Awesome Info as always!
Either way looks like I need a couple of coils.. One for that 385 JPS and one for a new build on a 390 Top end. Oh yeah, one for a 365 build thats going to happen.

Might be fun on the next UOMS/JPS build to try and mix and match Carbs & Ignitions on the Red Jred 2260 cases and a 562 top end and plastic, a "Bob" saw? I have a few that came with el46's and an el48. Have to wonder how much the firmware covers for the changes.

Is it worth getting the updated Ignition far a 2012 2172? The one thats probably going to get better bearings?

I think ultimately folks will want to know the "best" PN for the models they happen to have or like. So whats the Best for the following in my case:
372XT
385
390
& 562/2260.

 

[Sty57]

When they do firmware up dates on the AT saws. Should they be done on all older saws or do parts changes dictate a firmware update?

 

[stihl saws]

Yeah, I got an 041 Super down in the cellar that I hardly ever bring out either.

I had to buy a 395 to prop my building door open with. Sometimes the 660 just wouldn't hold it.

 

[RIDE-RED 350r]

Whatever a 660 can do, a 394/5 can do better! Lol!

 

[Frank bierce]

Great info!! Hopefully I can retain a little bit...I’ll try not to lean over, as I’m sure the information will spill back out.

 

[David Young]

I had to buy a 395 to prop my building door open with. Sometimes the 660 just wouldn't hold it.

Probably the poor sideways balance of that model...

Nice Bob thank you

 

[NCFarmboy]

Ed machined an adapter plate to mount a regular carb. I’d need to dig up the info but I thought he un-stratoed it.

I remember that saw he put an RWJ4 on it IIRC. I think he gutted strato.
Shep

 

[stihl saws]

Whatever a 660 can do, a 394/5 can do better! Lol!

Not if your 660 has a extra bananas sticker. I really like both.

 

[stihl saws]

Probably the poor sideways balance of that model...

Nice Bob thank you

Yes, it really puts it's shoulder into the door.

 

[RIDE-RED 350r]

Not if your 660 has a extra bananas sticker. I really like both.

I hear ya... I just couldn't resist a chance at a little ribbing

 

[stihl saws]

I hear ya... I just couldn't resist a chance at a little ribbing

I just need to add bananas to the 395 now. And the CAD circle continues.......