justin_o_guy2
Serious Thumper
Offline
What happened?
Posts: 55279
East Texas, 1/2 dallas/la.
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So yea I am running everything stock except for the Jardine Slip on that I put on
Getting the right mix of fuel and air demands that the system be balanced. Suddenly allowing exhaust to be virtually unrestricted creates a lean condition.
If it runs better on prime you have something going on petcock related.
If the vacuum can't open it up to flow enough to run it, that's screwy.
The petcock is a known issue and it's a variable. For about thirty bucks you can streamline the problem solving.
There are smart carburetor guys here, who can tell you what clues to look for, throttle settings, flat spots or power surges, etc.
If I thought it was lean I'd get rolling and cruising at steady speed, and click the choke a click.
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