Home game for the Hawkeyes today so we didn't even consider a trip to Iowa City since the U of I Hospital is across the street from Kinnick Stadium. We will go down after church tomorrow and find out if he will be released on Wednesday after all.
I helped a co-worker this morning take down a smallish pine tree, just over 20" or so as the base. Used the latest SP81 and my CP55; down, cut up, loaded the trailer (almost full), and out of there in just over an hour. Sorry no photos.
After I unloaded the wood and the gear I went back to the CP70 saw. On the first try, no spark. Pulled the flywheel again and found a small bit of paper lodged in the point (I always drag a piece of paper through the point after I set them to clean off any remaining residue). O.K. now the spark is fine so put the rest together. I made sure the oiler was good to go last night. Last step was the tank/top and carburetor.
For those that aren't familiar with the CP70 saws, they are fit with the SDC18 carburetor that have the bigger bore , 750" venture and .812" throttle bore compared to most of the SDC versions with .625" venture and .750" throttle bore. I swiped the 18 off my other CP70 to install on my SP125 after adding the fitting for the impulse to operate the fuel pump portion. Try as I might, I could not get this saw to run correctly with the SDC18, went through the carburetor twice with the same results, poor acceleration and would not idle, seemed to be good at the top end. I had another SDC18 that I picked up off e-bay so I put new gaskets & diaphragms in that one, exactly the same performance. Now what?
Finally I took another "regular" SDC from my box of spares and low and behold, starts, idles, accelerates, and seems to be pretty good at the top end with just bit of burble. Now I need to find some wood to cut and see how this one is really going to perform. Now to find another SDC or two with the external impulse line or find a couple of fittings to add to these and I will have a couple more "big" carburetors for the SP105/125 saws if I decide to go that way.
I went with the 4 bolt spike on this one, I rather like the way they look and mount
Interesting lower mounts for the anti-vibration on the CP saws, the top mounts are just like the SP 10 Series saws. The reed type muffler is very effective.
Lever type compression release on the CP70
Mark