runs liked a raped ape in rev...and getting slower in foward

[stevo10081984]

hey guys the title says it all, ive got a 1988 28hp remote on the back of my fishing rig, it seems a lil slow at full throttle, like it isnt reving high enough....also you can kinda feel a lil sputter/ surge when just cruzin along at slower speeds....put it in reverse and she'll rev right up....why would i have more power in reverse?....i checked the plugs for firing....and it will run with either unplugged...so both are fireing....on ocaision when the tank is low in fuel it will stall...pump the ball and she cracks right off half the turn of the key....where to begin??

 

[DJ]

Re: runs liked a raped ape in rev...and getting slower in foward

By design, it is not supposed to run in reverse over 1/2 throttle. Also, prop efficiency, in reverse, is musc less so the load on the engine is less.

"

I am ASSUMING you have portable fuel tanks?

"...pump the ball and she cracks right off half the turn of the key"

If you have a built in tank, I would be looking at the venting. The same can apply to portables.

I would try a known good portable tank with a known good fuel line set up.

 

[stevo10081984]

Re: runs liked a raped ape in rev...and getting slower in foward

i did not know that i was not supposed to give it more than half throttle in reverse?....good to know!...i tried a tank that is known to be good....same thing....guys are telling me fuel pump, but its my understanding that if its not leaking its good!???right?

 

[Will Bark]

Re: runs liked a raped ape in rev...and getting slower in foward

Disconnect your line from the pump to the carb and put the end in a jar; turn the motor over and see if it pumps in strong spurts. If not could be like mine no leak but not strong enough to keep motor running above 1/2 throttle.