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53 psi warm idle.
Cold will be 26 to 29 psi.
Pump pressure must be above 75 psi.
Look at the CPR...there's a pin sunk slightly in the body.
Drill a 5mm hole 10mm deep in center of pin (Dowel.).
Tap drilled hole with 6x1mm bottom tap.
Fit a 6mm nut on a 6x1mm 30mm machine bolt and a washer to go between the CPR and the nut and run nut up to the bolt head.
Screw machine screw into pin on CPR with Loctite.
Run nut down to CPR and continue to tighten it until pin begines to rise.
Bridge fuel pump contacts.
With pressure guage fitted, adjust nut or tap down bolt after backing off the nut a turn until pressure correct cold. You are changing the pin height in the CPR that directly affects the fuel pressure cold.
If the warm pressure is not correct, you need a CPR.
You may find you need to tap the bolt past its origonal point if fuel pressure was way off.
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