Jetting starting range

I've got my stocker running good and now looking to modify things. I have an e50, 15 bing, 15 intake, high flow air filter, and a circuit pipe. Any ideas on starting jet or range? Thanks all in advance!

Re: Jetting starting range

Probably Fred /

> Nick Johnson Wrote:

> -------------------------------------------------------

> I've got my stocker running good and now looking to modify things. I

> have an e50, 15 bing, 15 intake, high flow air filter, and a circuit

> pipe. Any ideas on starting jet or range? Thanks all in advance!

What cylinder? aluminum, high torque, one HP, 1.5 HP-two HP, Real bing carb?

Most real 15mm bing carb, 217 atomizer with two HP aluminum square port cylinder with Metal high flow filter will be around 78 jet

But timing comes before jetting so make sure your magneto is serviced and timed correctly

https://www.mopedarmy.com/wiki/Puch_timing

Re: Jetting starting range

Nick Johnson /

Stock cylinder, 1.5 HP, genuine bing 15, 217 atomizer, square port, black foam high air flow filter, just redid the seals and bearings, timing was set to stock

Re: Jetting starting range

Probably Fred /

Pitch the foam filter, it needs to be a metal mesh that has 3 times the surface area and doesn’t absorb gas and moisture as bad blocking it up

You need to get rid of the thick head gasket 1.5 hp usually have, as well as inspect the top end, many times rings are or part stuck

Stock timing is not an answer, what is the btdc degrees? people who actually time their engine will say the degrees, People who did not time their engine just say stock and are missing one of the most important aspects of engine running

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