Quantum is 300 kpa=43.5 psi
Stock is 338 kpa=49 psi
Quantum is 300 kpa=43.5 psi
Stock is 338 kpa=49 psi
Last edited by Fredrikrosen; 08-24-2020 at 07:30 PM.
I ran my stock xb9 with quantum’s regulator for 2 Years before I found out it was wrong. I never had an issue. You should be fine. It just pisses me off that they won’t fix the problem. I have emails telling and showing them that it’s the wrong kpa rating. They just don’t care.
FP10153. This is a part number for a 350 kpa fuel pressure regulator I bought off ebay. If you ever have to get back into the fuel pump then put one of these in there.
Today did i mount the new HT leads and took it for a ride, the bike runs much better. No misfire at highway speed when open the throttle, no back fire at engine braking and not so boggy at low revs. But it is obvious i have to change the intake seals again, the engine react to starting spray. This time did i order James blue seals, the once i mounted some month ago which was reinforced with a steel ring seem not to get tight enough. The AFV still is high, about 125-128 so i hope new seals will solve that. Thanks for good advice Mr.Cooter.
Put a light coat of oil on the intake seals and around the intake ports before you install. Let’s them slide right in place. Wipe off excess after tightening. And make sure you tighten the bolts Evenly. Don’t run one bolt all the way in and then tighten the other one. This will cause uneven pressure on the seal. Be patient and you’ll get it right the first time.