305 merc in 206 rinker

[wltcpatrick@yahoo.com]

when cruising down the lake at any speed my boat just looses power but can just go back to idle and slow down and then take off and fine sometimes for awhile sometimes not very long any ideas to check would be awsome

thanks todd

 

[xltier]

check for fuel starvation.check valve in tank line nor fuel filter etc.also mine had a plugged vent with mud wasp.

 

[Bondo]

any ideas to check would be awsome

Ayuh,.... Start by examinin' the Contents for the fuel filter for water, 'n crud, 'n install a new filter,....

Is the motor carbed, or Efi,..??

 

[wltcpatrick@yahoo.com]

we replaced fuel line and fuel filters but need to check fuel vent but believe its ok cause sometimes when filling it up it comes out it.

and is carb

 

[wltcpatrick@yahoo.com]

fuel filter looked good and his vent is clean he has removed his check valve on gas tank and gas tank pick up if that matters to this is for a friend of mine boat been doing this for awhile

 

[alldodge]

Next thing is to check fuel pump pressure, and as Bondo asked, is this carb, efi and what year?

 

[Bondo]

and is carb

Ayuh,.... So What carb is it,..??

What vintage,..??

 

[wltcpatrick@yahoo.com]

90 with a 4 barral on it and he replaced the fuel pump last year

thanks again for any help guys

 

[wltcpatrick@yahoo.com]

how you check pressure?

 

[alldodge]

Disconnect the line going into the carb and install a Tee. Then connect one end of the Tee to a vacuum fuel pump tester. you should read 4-7 psi throughout the rpm range. The hard part is making the Tee. you can either get an adapter or make one. The pressure not being the high regular gas line will work with clamps

https://www.amazon.com/Performance-Tool-W80594-Vacuum-Tester/dp/B000FW2O1G

 

[wltcpatrick@yahoo.com]

thanks will try to check that but why would it only do it for a second just week maybe ?or could there be dirt on a jet in carb maybe

 

[alldodge]

Could be dirt, could be a weak pump but need to test to see what is going on, otherwise were throwing parts at it

 

[wltcpatrick@yahoo.com]

ok thanks all dodge

 

[wltcpatrick@yahoo.com]

any thing else we should be checking to prob go over to local lake this weekend try that fuel pressure out

 

[Bondo]

90 with a 4 barral on it and he replaced the fuel pump last year

Ayuh,...... I think they were still usin' the Quadra-Jet then, the Weber came out shortly after,.....