Just another junk chainsaw

   / Just another junk chainsaw
  • Thread Starter
#601  
Yet today I got paid to clean up a saw for a owner and give it a check up. One I traded off 7-8 years ago.

These little 49cc saws still impress me today.


p5000z.jpgp5000mc.jpgp5000mcc.jpg
 
   / Just another junk chainsaw #602  
I'll see how I like it. Then decide if I want to send it down the road. I have already been offered more than I paid:thumbsup:

And remember, about a dozen chains came with it. With about 8 of the chains being 80% +.

And 3/8" full chisel .050 and 72dl makes it fit a whole slew of other saws I have that also wear a 20". Not to mention a couple of spare bars......makes the cost of the saw more like $150-$200 all said and done;)

You did not get hurt with this LD1 . . . many extra's.
 
   / Just another junk chainsaw
  • Thread Starter
#603  
Some trade in's. Poulan 4000 and craftsman 3.7 = poulan 3800 and a 3400 parts saw. The first 2 sold already.

DSCF2039.JPGp37kp.jpgp4000fssssssss.jpgp373800.jpgp4000fssssss.jpg
 
   / Just another junk chainsaw
  • Thread Starter
#604  
Reringing and deleting base gasket on a locals saw. New muffler he brought to add too.

h372wwwwwwwwww.jpgh372www.jpgh372ww.jpgh372wwwwwwwww.jpgh372w.jpg
 
   / Just another junk chainsaw #605  
Picked up a Craftsman 3.0 saw at a garage sale few years ago. Never could get it to run reliably, some kind of carburetor issue. Think it's worth repairing?
 
   / Just another junk chainsaw
  • Thread Starter
#608  
Picked up a Craftsman 3.0 saw at a garage sale few years ago. Never could get it to run reliably, some kind of carburetor issue. Think it's worth repairing?

Grey 3.0 with the mag case? Most times the impulse line, then fuel line, carb kit. Also check for a boot tear under clamp if been abused.

Great 49cc bare bore saw with chrome piston. If the saw you have. can put a 46cc 49cc 54cc on that case.

Does it look like these? or is it the earlier ones sold as 3.0 but is really a 3.4?

c30parts.jpg
 
   / Just another junk chainsaw #609  
Grey 3.0 with the mag case? Most times the impulse line, then fuel line, carb kit. Also check for a boot tear under clamp if been abused.

Great 49cc bare bore saw with chrome piston. If the saw you have. can put a 46cc 49cc 54cc on that case.

Does it look like these? or is it the earlier ones sold as 3.0 but is really a 3.4?

View attachment 604229
It is grey/black, and at least similar to the ones in your picture. When I get home on Sunday I will check for sure.

I did replace the fuel line, but haven't tore into it anymore than that.

Thanks for the help.
 
   / Just another junk chainsaw
  • Thread Starter
#610  
It is grey/black, and at least similar to the ones in your picture. When I get home on Sunday I will check for sure.

I did replace the fuel line, but haven't tore into it anymore than that.

Thanks for the help.


Found whole saw pics. Which one of these?

Both sold as 3.0 in different years. Bigger one is the earlier cv series. The later is the ones I like that at smaller lighter like a 026 260 etc.

I keep info on my chainsaw repair website. https://chainsawrepair.createaforum.com/

c30z.pngc30.jpgc30xx.jpg
 
   / Just another junk chainsaw #611  
   / Just another junk chainsaw
  • Thread Starter
#612  
   / Just another junk chainsaw #614  
I know the impulse line connects from carb to cylinder block, but can you describe in detail how it connects on this model? I checked the owners manual (online) and the provided schematics do not seem to mention an impulse line at all.

So I was looking down into the saw around the intake boot and couldn't find anything resembling a hose. There is, however, something which looks like a brass barb on the cylinder block which is suspiciously clean of sawdust. I am thinking this may be one of the hose connections.

When I got the saw it did run, but I only got a few cuts before it wen't kaput. My theory is that the saw hadn't been run in many years and possibly the line was brittle enough that a bit of vibration broke the hose out and I never saw it.

Either way, I already ordered some of the hose material mentioned on your site, and should have it sometime next week.

Appreciate the help.
 
   / Just another junk chainsaw #615  
Here is a picture of my supposed barb:
2019-05-14 17.57.56.jpg
 
   / Just another junk chainsaw #616  
Looks like it goes to the crankcase which would be correct for a pulse line for the fuel pump. If you look at the carburetor assuming it is supposed to have an impulse line, it would have 2 or 3 ports on it (2 if no primer bulb, 3 if it has a primer bulb) and likely two side covers. One side cover with 2-4 screws and a large diaphragm about the diameter of the carburetor, this is the pressure regulator, likely not a barb on that side. On the other side that is the fuel pump side and if you take it off will have several reed valves and a diaphragm section about 3/8" diameter, one side of that diaphragm section will be ported directly to that barb in your picture (on the smaller venturi versions the port goes through the intake gasket into the manifold and ported somewhere under the piston), the other will have some ports leading to check valves, a fuel inlet and possibly a fuel outlet going to the primer bulb that sucks fuel through the carburetor and returns back into the tank.

My drink just kicked in, but that should cover the general operation of a generic 2 stroke pumper carburetor :)
 
   / Just another junk chainsaw
  • Thread Starter
#617  
Here is a picture of my supposed barb:
View attachment 604716

That is your impulse nipple. It runs through your tank under your carb. Then up to top of carb.

Showing the black line aka echo 3mmx6mm for the impulse running to top of carb. From the brass nipple you show.

plines.jpg pimpulse.jpg
 
   / Just another junk chainsaw #618  
Thanks guys! With any luck it should be running next week.

I think I will put a lightweight 16" bar on this saw and if I like it, I may end up selling my similar sized but lower quality Husky in order to trade that up for a bigger saw.
 
   / Just another junk chainsaw
  • Thread Starter
#619  
They like a 16" 325 IMO. This one is the 54cc not 49cc

c33v.pngc33vv.png
 
   / Just another junk chainsaw #620  
After replacing the impulse line the 3000 started right up. I had to order a new vent line since the one on it did not have an appropriate valve. Comes Saturday.

Put on a Tsumura 16" .325 bar and BPX chain and did my best to tune the carb...

Motor starts easily and runs strong. With low and high mix at 1-1/4 turns out, at idle it was spitting black oil out under the muffler. I leaned out the low mix quite a bit and it seemed to help. At WOT, in a cut, I still get black oil under the muffler, and a nice little smoke after I shut it off. Right now it is tuned just a bit richer than its maximum power band and not sure I can go much leaner. Cuts well (better than my 50cc husky).

Full disclosure: I'm not that experienced with carb tuning, and never have had a saw spit oil out the exhaust. Any ideas?

Other than this concern it seems like a great saw.IMG_20190523_180239.jpg
 

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