I've been reading some of the above posts about this issue with VMAX's motor, and I'm thinking I've got the same problem. The last couple of weeks my OX66 has been starting real hard. I have to crank it 5 or 6 times before it starts, and then when it does start, it chugs and smokes like never before. Once the motor starts running, it'll run across the lake with no problems. Seems to be a starting issue only.
After doing the reading here and elsewhere, I do believe it's a problem like VMAX's fuel pump, and I plan on taking them off today, squeezing the bulb as described in this forum, and seeing if they leak. Is that really all I'm looking for?
Also, what are the chances that it's a VST filter? Looking at the schematic, it doesn't look like much fun to get to, but I think I could do it. I guess I can always put the fuel pumps on and then go from there.
It's my understanding that these little fuel pumps are low pressure, and the one in the big cannister is high pressure, correct?
Thanks for the all the help--