Re: mark 75 issues

[motoscott909]

Another update. I cant seem to find a restriction anywhere in the line. It seems that the slow pumping problem is in the bulb itself. I wonder if the check valve inside is malfunctioning?

For my own sanity i stripped the fuel pumps completely down once again. I found one issue. under one of the check valves in the bottom pump, the little round gasket must have moved when I put it together, and was half way out of place. The other half had become lodged into the area below the check valve. Im thinking this may have been a big issue. It may as well of not had a check-valve in that side because all the gas could go right through the opening the dislodged gasket created. I replaced the gasket with an extra that i had from when i put the kits in. It seems to run fine, but then again it always does until it decides to quit. I will have to bring it out and run it to see if this fixed the problem.

I still have the issue of the funky primer. I think i’m going to buy another one to see if it helps.

One last thing. (I promise) 😀

What voltage range should the stator be putting out? It seems that at an idle, the battery is actually discharging slightly (down about .2 volts from 12.6 to 12.4), but when I rev the motor a bit the voltage jumps to around 12.8. I’m used to seeing stuff charge around 13.5 volts or so, so im not sure if i have a problem with the charging circuit also?

Thanks again!