I have put a mower together and tested it, this is he dirty engine that I honed out with used rings, bearings and seals. (I got impatient waiting for parts). With a jet size of 0.85mm

I don't recommend drilling the jet out larger, I wished now I had tried it first, then drilled the next size up to notice a difference (next time).

It is starting around 4 pulls and I had to lower the revs by 150rpm by moving the governor spring down a hole.

There was no noticeable difference in how the engine ran using the snorkel air filter or the original. So I stuck with the snorkel.
[Linked Image]

More worrying is the vibration in the handles, I fitted new blades with no change, anyone have a fix for the blade plate, I don't have a balancing cone.

[Linked Image]

Last edited by mark electric; 25/11/14 09:24 AM.

Happy is he who penetrates the mystery of things.