OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Full Crank Engine, Super 600

Finally got back to look at the Super. Had read, in the meantime, that the outer long spring in the carby would only account for a few hundred revs, was certainly looking for a larger adjustment than that.
First did the test Mark suggested, blow in the governor tube, sure enough air was passing through. Tested another one that was rebuilt, just to confirm the amount of air pressure. Popped the cap off..... yeah the diaphragm was indeed crinkled down, just a little, simple fix.

Gave her a run (second pull start from cold this time) and thought it could rev a fair bit more so turned the venturi control, which Luke suggested. This time there there were definite substantial changes in revs, albeit from sounding to low to to high, probably should have persisted longer.

Thanks Chris for the accolade. Took on board re the power torque carb and was thinking of fitting one, but thought I would give the old carby another try.

Never the less a positive improvement for the better. Thanks heaps guys.

One thing that helped my rebuild was this lever pictured below. Had read on ODK a few folk were having a awkward time remounting the top clip on the muffler.

A small rod is put through the hole in the end of the spring (in this case a nail)
I scraped off the electrical tape on the front side of lever to allow freer sliding of the nail down the lever. the tape was put on to preserve the paint.


This is a side view, the chamfered edge goes toward the muffler to allow the nail to run down. Probably would round this off more, almost to points and up the lever more, before I do another one. I did hold pressure on the lever and tap the nail down, a little on both sides, with a tack hammer.


It works really well!


This idea was given to me by an old time mower repairer.