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Had fire start in muffler due to failing fuel pump &/or fuel pressure regulator. Must I spend the $750+ for a new assembly from Arctic Cat?!? Here's what I've tried so far. Replaced fuel pump & regulator - both from Quantum. PSI is 60 rather than the 42 the dealer advises it should be, so problem persists. I've now twice replaced the Quantum regulator & discussed w/ Quantum. They advise that they don't have an alternative regulator that would bring PSI down to 42. I've tried several in-line, adjustable pressure regulators but they either didn't work or I couldn't get a constant pressure from them. FYI, I've only tried the adjustable regulators for Fuel Injected engines however, it seems that they require vacuum to function properly. When I can temporarily get the PSI right, everything works great. Anyone else ever dealt with this problem, and, if so how did you fix it? Perhaps I should adapt the fuel system to include a gas tank return line? Any insights are greatly appreciated, Don
