Mcculloch CP125 reborn

[Danno]

I dunno nothing bout compression releases, but could a faulty one explain any of the initial problems you were having (I understand that the gap prob solved most of that timing stuff), but if your compression release isn't sealing 100% could you get a hot spot in the cylinder from the air leak and also lower than expected compression?

 

[leeha]

I dunno nothing bout compression releases, but could a faulty one explain any of the initial problems you were having (I understand that the gap prob solved most of that timing stuff), but if your compression release isn't sealing 100% could you get a hot spot in the cylinder from the air leak and also lower than expected compression?

That is very possible Danno, But it is tight as a drum.
No leakage there at all. One of the first things i had checked.



Lee

 

[Danno]

Well, like I said, you seem to be good to go, so let's see how she runs when everything is worn in! Definitely report back after she's got some more time on her.

 

[kykayaker27]

kinda newby here how does the d44 stack up to those

 

[leeha]

kinda newby here how does the d44 stack up to those

In small wood ok, But in big wood,
Not even close. Two totally different saws.




Lee

 

[Danno]

kinda newby here how does the d44 stack up to those

It's not even close to the same class. D44 is a 72cc saw, the CP125 here is a 123cc saw

 

[cpr]

That said, for a 72cc saw built in the mid 50s, you'll be hard pressed to find one that kicks ass harder. Way, way ahead of its time.

 

[kykayaker27]

for me im deaf in my left ear from a stroke among other probs next time i fire mine up im wearing hearing protection sucker is loud:biggrin:

 

[buzz sawyer]

I had some time today to mess around with this piece of junk.
I checked the carb again. Intake boot, etc. I then wanted to
try the timing thing. So i got out the multi meter and found the
points were braking where the center line on the flywheel was
just past the center lamination. Wow i thought, Timing is way
to late. So i pulled the flywheel and checked the points. Gap
was at .014. Not sure what happened but i had set them at .020.
Reset the points so they broke where the line is in the center of the
lamination. Seems to run much better with a lot more power.
Hopfully the compression will come up with some more run time.
Here's another video. The wood is very hard well seasoned oak.

Lee

Definitely better Lee, especially in that oak.

 

[OldDeadWood]

Timing Indicator #57443A

On page 11 #165 Mark Heimannm linked three sheets on timing.

Great Info, Thanks Mark.

Now; Could someone with the 57443A Timing Indicator trace it with a fine pencil and scan it in so we could coppy it. Or, perhaps scan in the full size Timing Indicator.

Thanks, Woody.

 

[24d]

Redirect Notice

 

[heimannm]

Last time I checked, Bob Johnson (607 638 9297) had the timing indicator available and reasonably priced.

Mark

 

[Ambull]

I had some time today to mess around with this piece of junk.
I checked the carb again. Intake boot, etc. I then wanted to
try the timing thing. So i got out the multi meter and found the
points were braking where the center line on the flywheel was
just past the center lamination. Wow i thought, Timing is way
to late. So i pulled the flywheel and checked the points. Gap
was at .014. Not sure what happened but i had set them at .020.
Reset the points so they broke where the line is in the center of the
lamination. Seems to run much better with a lot more power.
Hopfully the compression will come up with some more run time.
Here's another video. The wood is very hard well seasoned oak.

Lee

I am very proud of myself, lol, because I thought the timing was late originally.

Here it is from back when you first posted problems........

From reading this board, most of the people "who know" say that the CP125 runs stronger than the SP125. If that is true, something must be wrong. Perhaps it is the timing. I am not sure how compatible the flywheels are, but maybe it has the wrong flywheel on it. If the timing was really late, it might do the things that you are experiencing. Are you using the points or a chip?

 

[Eccentric]

I am very proud of myself, lol, because I thought the timing was late originally.

Here it is from back when you first posted problems........

I see you're flexible enough to pat your own back JP!

 

[Macman125]

cp125 bar

Does anyone know where I can find a 32 or 36 inch bar for my cp125