rob2359
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My 1st 4 stroke-Saito 72 - 2007/03/05 02:10
My 1st 4 stoke.
This Saturday I finally found some time & the help to get my new Saito 72 out of the box for a break in run. I read the manual front to back, several times, had my friend Don read it as well and figured I was ready to run it. I balanced the prop. Joe A. was right, Master screw needs a lot of sanding & scraping to balance. I mounted the 13X6 with a new small thread cover spinner.
I next mounted the Saito on my engine stand (needs more weight-more on that later). Installed the muffler, checked all the hex head bolts, one was a bit lose, then turned the needle value I opened the 2 ½ full turns they tell you to & fueled it up. Following the manuals directions, I primed it by turning the prop several times by hand, slowly. Next, I put on the glow battery, made sure it was tight so it could stay on the whole time and put the electric starter to it for @ 3 to 5 seconds and WOW, started right up. Using the tach, we kept checking the RPM’s. The manual states keep at 4000 RPM’s for the 1st 10 minutes. I had to quick shut it @ 2 minutes in, the muffler started coming loose. I thought I tighten it down to much, guess not. Shows how important checking and rechecking you equipments really is. Refueled it because it sucked up so much fuel in those few moments. Good thing the battery glow starter was charged because it stayed on the whole 10 minutes. Did I tell you it was less than 32 degrees & we had a bitterly cold wind blowing? We did.
After the 10 minutes I started to move the RPM’s up & down & finally started to lean out the engine a bit. It is now @ 2 full turns out with more needed but I will see what it is like once in a plane. This was a good place to stop because it was basically out of fuel. It sure does drink a lot being this rich. I have to tell you, it was really sweet watching & listening to that motor just purr.
I told you I need more weight. My engine mount is screwed to a 1 ¼” thick 14” X 18” plank. Then I clamp that to a cinder block in the rear and place another one under the front. The motor is so powerful it moved the cinder block up till it was against the other one even while I had one hand on it. The club members are right, just put a big enough motor on it, it will take off…… lol Guess I will need to clamp it to both cider blocks. Never had that happen to my 40 or 60 before. Boy is this going to be fun in my new Stick, 40 size.
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