Glowgeek

Thanks Dave, a little encouragement goes a long way. BTW, the 82a piston is supposed to be fully machined across the piston top as well. My piston never had the chance to get cleaned up all the way across the top because the casting was not tall enough. There's probably quite a few 82a piston out there like mine. Perhaps new molds were made at some point to address the problem?

My cousin is a quality manager at an automotive parts casting plant, he said, "There's nothing to worry about, they're not cracks, they're recesses left by a buildup of mold release compound in the mold". Apparently this is common maintenance problem with investment casting. On the other hand he said, "At my plant that part would've been thrown back into the furnace". WHAAAAT? Lol

The money pit goes back together today.

Hobbsy

My Feedback: (102)

Saito 120-S DP, ready for new owner


Saito 120-S DP with pump going to new owner.


Saito 82 piston/rod, 82 crank case and 72 piston. The 28 mm should say 29 mm.

cahusker

My Feedback: (50)

Pretty sure the fat one goes on the idle needle, fits in the end of the throttle barrel under the throttle arm and seals the idle needle. The one in the end of the spray bar is much smaller/thinner.

Hobbsy

My Feedback: (102)

New Saito 100 spray bar-O-ring already in place.
Yep, the one you mention comes in a new spray bar, sorry for the mis speak. Thanks

Captcrunch44

Hobbsy

My Feedback: (102)

The tank pressure regulator will be included

Tank pressure adjuster at rear.
The nipple at the needle valve goes to atmosphere. The others go, one to crankcase vent and the other to the tank. Easy peasy, not so easy to adjust.

Jesse Open

My favorite Saito large case engine. The pump can be used without the needle valve, simply venting to atmosphere. Most people try to over-pressure the tank.

If I didn't already have three of them.. .. ..

The cylinder looks like it has a different finish from the case??? Looks like a frosty, matte finish;or is that the lighting?

Hobbsy

My Feedback: (102)

I haven't touched it other than to run it about 30 minutes, it was new and unrun, it runs really smooth. I did not run it at full throttle. I came with a J-Tec in cowl muffler which I passed on to someone. The muffler shown is a 150 muffler.

Jesse Open

Great engine.

Quikturn

My Feedback: (12)

Jesse Open

Has that engine had a CDI fitted at some point?

Glowgeek

For those of you familar with my money pit FA82a it's now making the full rated 1.5hp spinning an APC 13x7 at 10150 rpm / idles beautiful at 1950. It was a new piston ring that healed it. After 3/4 gl of fuel it still doesn't like an APC 14x6 but it'll come around with time.

Dave, the rpm climbed 1000 rpm during the 7000 rpm 10 min run.

the Wasp

My Feedback: (1)

that's good news to hear after all you went threw !!

Jim

Quikturn

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Hobbsy

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I toyed with the idea of using dual spark plugs, I mounted the ring and sensor, then discovered that the front plug is almost impossible to attach a spark plug to it.

The 180 carb arrived, very nice, many thanks.

Hobbsy

My Feedback: (102)

That usually happens during the 5000 rpm 10 minute run, you done good. It'll peak in about 50 minutes if it's typical.

Glowgeek

Thanks fellas, glad I could contribute something to the thread.

Glowgeek

Anyone have a case for an FA56a?

Jesse Open

Glowgeek

Do the pumped/regulated Saitos allow for mounting the fuel tank further back? Like back over the cg?

Hobbsy

My Feedback: (102)

That begs the question, at what point does the crank case pressure begin to adversely effect the engines power output. For years we've advised people against putting too much fuel line on the vent, now we deliberately block the vent flow to,pressurize a tank. If you used a regulator you could put the tank anywhere it suited you.

Note stiff walled Sullivan tank bulging.

Jesse Open

...73...

Quikturn

My Feedback: (12)

Quikturn

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Quikturn

My Feedback: (12)