Carl H wrote:pulling the plugs from the engine will help build pressure quicker.it took about 5-10 good 15 sec burst cranks for my rb20 to prime the system.
Definitely pull the plugs.
Be VERY careful to not overheat your starter doing this. I burnt out one doing this.
Anymore I don't bother priming, our engines are not old school v8's, ours build pressure immediately after firing. If you have enough assembly lube on all your parts there is no worry about hurting your bearings.
If it doesnt build pressure a few seconds after start up shut it down, check over your OIL pressure connections/wiring and go from there.