.<br /> that 3o marlin tournament with a pair of ox66 yam 250's sure can put a dent in the 300 gallon fuel capacity . last one I was in could eat 59.8GPH at 5000 RPM.<br /> anyway back to the 235. not knowing what year is difficult. has the VRO been removed? I have seen some v-4's run suceesfully on 100-1. I would not. but the 235 would most likly die. on a light bass boat maybe, on a heavy center console fishing boat nope. check the recirc valves, test the engine compression, if it has the plastic minlon fuel bowls and is chronic rich at low speeds check the bowls for warpage. and mostly check how the premix is done. the only correct way to pre-mix is by mixing in a seperate container. ya cant just dump a gallon in and add 100 gallons of gas. this I have seen to many times. if lucky the carbs pick up an over rich slug of oil and the engine quits at worst it picks up no oil and the engine quits. the former to to much oil in the carbs and no fuel the later cause of no oil in the carbs and the reciprocating assy quit. my bet on the oil fouling is lack of maint or method of pre-mix.<br /> same as if you dont keep a clean filter in the 250 vapor seperator or clean the O2 sensor every 200 hours and maybe check the spark plug cap resistance now and again or keep the low pressure pumps changed every 3 years or 400 hours. be proactive on that 250 or it will puke.
