McCulloch Chain Saws

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Today I cut down a big silver maple tree and brought the sp125 along.

The question is a couple of times it acted like it was running out of fuel and if I throttled it it would pick back up. It was really pulling well in wood but I am wondering if it is running lean. I know it is a fixed H jet. I did reset the needle valve but I just did it by eye. Is it possible to set it a little to low and cause a lean issue? I know it can be set to rich and flood.

What is the proper setting on the SP125 fixed jet needle valve height. Based off of having a metal ruler across the body of the carb?

I did not put new gasket or fuel pump in it and think maybe I should now. Just do not want to take any unneeded risk now that I know it runs like a raped ape.
 
good looking lil addition i like the blue print chest and the sink.

Thx. It was a lot of work and I built the bench around the print cabinet. Obviously a lot more painting to do. Hopefully I'll have the front on the bottom drawer tomorrow and that section of the garage disaster will be done.
 
Thx. It was a lot of work and I built the bench around the print cabinet. Obviously a lot more painting to do. Hopefully I'll have the front on the bottom drawer tomorrow and that section of the garage disaster will be done.

I could tell you put a lot of thought in to it and the print cab was the heart of the area good luck keeping it white i have a feeling it will soon be mostly yellow... lol
 
how do you insert a smiley in the text everytime i grab and drag one over to the box it turns in to a url location not a picture.
 
how do you insert a smiley in the text everytime i grab and drag one over to the box it turns in to a url location not a picture.

Dude ... don't drag it .... just click on it and see the 'text' appear in your message ... when you click 'submit' it magically changes back ... good luck! :msp_w00t:
 
Dude ... don't drag it .... just click on it and see the 'text' appear in your message ... when you click 'submit' it magically changes back ... good luck! :msp_w00t:

:cheers::hmm3grin2orange::hmm3grin2orange:

i new it was something small i was doing wrong thanks
 
Today I cut down a big silver maple tree and brought the sp125 along.

The question is a couple of times it acted like it was running out of fuel and if I throttled it it would pick back up. It was really pulling well in wood but I am wondering if it is running lean. I know it is a fixed H jet. I did reset the needle valve but I just did it by eye. Is it possible to set it a little to low and cause a lean issue? I know it can be set to rich and flood.

What is the proper setting on the SP125 fixed jet needle valve height. Based off of having a metal ruler across the body of the carb?

I did not put new gasket or fuel pump in it and think maybe I should now. Just do not want to take any unneeded risk now that I know it runs like a raped ape.

Definitely change out the diaphragms and gaskets in that carb. Sounds to me like the pump side can't keep up and it's leaning out. Bad juju...:msp_sad:
 
Thinking about getting a Low Priced Mac limbing saw... something fast, light and durable nothing special just a work horse for firewood and brush what do suggest and why?
 
Thinking about getting a Low Priced Mac limbing saw... something fast, light and durable nothing special just a work horse for firewood and brush what do suggest and why?

If you really want something that is a double edged sword, go for a Mini Mac... one of the old school ones. ##### to take apart and get together from what I read (in layman's terms, make damn sure you have all of the parts in there before you put it together...) but when they run, they run good and cut really good for the size.

Some say they either run or don't run...
 
I have the 3:1 gears in the 840, pulls the 48" bar with authority.


I have the 2:1 set in the 1-85, I really love that saw.

183700d1305165121-100_6418%2520-medium-jpg


Mark

Although the Mac gear drives are great girls it looks like Chris has you beat with with the ole Homelite. It looks like he is going for his third cut when you are finishing your second. That was Sean's GTG last year wasn't it??

Bill
 
I could tell you put a lot of thought in to it and the print cab was the heart of the area good luck keeping it white i have a feeling it will soon be mostly yellow... lol

Balance, my friend. The wife appreciates that I tried to blend it with the rest of the garage, including the paint and trim. I agree with you, it will be a mess of oils and paints soon enough. The top is 3/4 plywood with a replaceable Masonite surface so I can renew it whenever SheRoze starts telling me it looks like crap.
 
Although the Mac gear drives are great girls it looks like Chris has you beat with with the ole Homelite. It looks like he is going for his third cut when you are finishing your second. That was Sean's GTG last year wasn't it??

Bill

Bill,

I lost that one in a bad way. I'd like to say the chain was awful, but Mark and his saw were just pretty darned good. Now, the 3100 is setup better and I'm waiting for a rematch!!

Chris B.
 
If you really want something that is a double edged sword, go for a Mini Mac... one of the old school ones. ##### to take apart and get together from what I read (in layman's terms, make damn sure you have all of the parts in there before you put it together...) but when they run, they run good and cut really good for the size.

Some say they either run or don't run...

Not completely true (the last part). I had one that didn't run well. I think it had a stopped up fuel filter. They can get annoying to put together, easy to do but if you forget to do something you get to do the whole thing over again. I would go for one of the later versions of the metal ones, better starter assembly and electronic ignition. The Mini-Mac is McCulloch's answer to the 150 Homelite..
 
Thinking about getting a Low Priced Mac limbing saw... something fast, light and durable nothing special just a work horse for firewood and brush what do suggest and why?

I am also going to recommend a 10-10. I put a 16" bar on it at use it quite a bit for yard work and some light firewood. It is almost as handy as my Homelite Super EZ Auto, which is what I would recommend if this was the Homelite thread.:msp_biggrin:
 
I am also going to recommend a 10-10. I put a 16" bar on it at use it quite a bit for yard work and some light firewood. It is almost as handy as my Homelite Super EZ Auto, which is what I would recommend if this was the Homelite thread.:msp_biggrin:

Do you like the 150 model? I have a couple of them and am trying to decide whether to keep them or not.
 
Never owned one, had a chance to buy a few but never felt the need to spend money on them, would rather buy a super ez or xl12.

What the deal is, I have a couple of XL12s and an EZ, and a couple of 150s and I'm running out of room. I need to get rid of something. I have a couple of parts saws to get rid of, maybe I won't have to get rid of any of the Homies.
 
Definitely change out the diaphragms and gaskets in that carb. Sounds to me like the pump side can't keep up and it's leaning out. Bad juju...:msp_sad:

I will have to order the gasket and pump. WHat is the level of the needle valve supposed to be at?

Also I found a NOS 37" bar. I would assume it would be best to have skip tooth on a bar that size..404 chain? The SP125 should be able to pull this correct:msp_confused:
 
I have a skip chain on the Super 797 with 32" that was at the GTG, I don't really like it on a bar that size. May be O.K. for a longer bar and/or cutting soft wood but it is way to grabby and rough for my use. I will be putting a full comp chain on that one if I ever get home again.

Mark
 

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