Poulan 3700 oil mix

[SamT1]

So I ordered a 3700 the other day. It looks like a nice specimen but I haven’t received it.
I run stihl 50:1 oil with ethenol free 91 (maybe not sure how much regular is in the hose) in all my other stuff.
Is this OK in the Poulan or does it need a dash of oil added?

I’ll probably run the thing as a work saw for a bit just for nostalgia sake so we’re not talking a tank or 2, more like run the crap out of it.

Probably do so mods to it too soon!

 

[Jethro 2t sniffer]

40 to 1 full synthetic. Cut a side outlet in the muffler and your done really. Jump on the poulan thread if you would like to learn more I have a 4000 but same saw just 3cc extra very nice saw built like a brick S**t house

 

[Efisher26]

Ooooooh ya!

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[SamT1]

What about advancing the timing 3*, base gasket delete, widen the intake and exhaust ports, muffler and some new rings?

 

[Jethro 2t sniffer]

If you're going to open it up why not but the poulan boys say don't touch the timing as there's no real gain and it will break the starter pully. Also clean up the carb adapter/intake manifold as there's a sharp bend and some flashing. I did rings and bearings 4000 style muffler side port and gasket delete and it's a great saw nice anti vibe too never touched the ports as the 4000 cylinder is to valuable/hen's teeth to screw up

 

[Jethro 2t sniffer]

Canadian 4000 with chain brake

 

[SamT1]

If you're going to open it up why not but the poulan boys say don't touch the timing as there's no real gain and it will break the starter pully. Also clean up the carb adapter/intake manifold as there's a sharp bend and some flashing. I did rings and bearings 4000 style muffler side port and gasket delete and it's a great saw nice anti vibe too never touched the ports as the 4000 cylinder is to valuable/hen's teeth to screw up

Yea I saw a jacked up one on eBay that’s heading up over $50 that’s nuts for a 4000 cylinder with issues. What’s sad is we used to have 2 4000’s in the barn that we’re worn out that I suspect got sent to the junk yard .

 

[SamT1]

I have heard those are highly desirable! Probably not for me since I’m gonna actually work the thing. What’s one if those bribg?

Canadian 4000 with chain brake View attachment 697612

 

[Jethro 2t sniffer]

I have heard those are highly desirable! Probably not for me since I’m gonna actually work the thing. What’s one if those bribg?

Yea screw that I'll throw a 3700 top end on it if it gives up. Yes they are fairly sort after but only to poulan people. Sad those 4000s went to the tip

 

[Jethro 2t sniffer]

On Ebay people would pay silly money for a Canadian one a regular green can go for a fair bit now too I payed 175nz for mine i was on the fence about it for that much until a guy on here schooled me up on them he's in Canada and looked for two years to get his orange version

 

[Efisher26]

Came in yellow(skill) also. The canadien ones have chain brakes also


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[Jethro 2t sniffer]

Yea nice in yellow clothes

 

[Efisher26]

I run 40:1 in it... non ethanol


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[s sidewall]

Or just go all the way with a bigger bar, don't mind the 3400 sticker, it has a 3700 top end. 40:1 non etho gas with synthetic oil.

Steve

 

[foeke]

Or just go all the way with a bigger bar

Steve

But why!? ( )

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[jltrent]

One of my favorites as I have sold six 4000 on Ebay through the years and about as many 3700. I wish I had a couple of the 4000 back. What always scared me on those, as everyone I had even the low hours one, had a little up and down play in the crank bearings. That must be normal as you can run them many years even with abuse and it is not a problem apparently.