Jnz
Active Member
I have a few separate posts recently, this one starting the new issues. I just finished rebuilding the carbs, all have 38 pop off and pass leak test. Engines both test at 150psi and dual output fuel pumps have been fitted to each motor with each carb getting its own output from the pump. On to the first water test tonight, both engines seem to take a good amount of time to start, full choke and the right engine seems to only start if you feather the throttle while starting both out and in water. In the water once finally started the engines idle fine, but the left motor seems to only want to go 3500rpm while out idling I played with giving short burst and it will go to about 5000rpm, but then a backfire like sound comes and the idle go back down, also this same motor if you do not finesse it to 3500 and just give it, it wants to die, unless you back off the throttle.
Recap:
Hard/long crank starts both motors, 4 times of choke and 5-10seconds holds on the starter. Left motor needs a little throttle to finally start.
Left motor dies when full throttle from idle.
Left motor will get up to 3500 when finessed and if short bursts are given 5000 and then a light backfire/air puff sound comes.
And here I thought I was making progress with this.
Thanks for the help on advance.
Recap:
Hard/long crank starts both motors, 4 times of choke and 5-10seconds holds on the starter. Left motor needs a little throttle to finally start.
Left motor dies when full throttle from idle.
Left motor will get up to 3500 when finessed and if short bursts are given 5000 and then a light backfire/air puff sound comes.
And here I thought I was making progress with this.
Thanks for the help on advance.
