I started me new motor this morning. Cranked right up. Started it again about 15 minutes later. No problem. Started it again and set the timing. Started two or three times. Now the motor turns over but it smells like gas. White wisps of fuel vapor come out of the sidepipes. I have an adj fuel press reg and had adjusted it up to read 38 lbs with vac attached. Can I be flooding out the motor? Any other ideas?