Tim Frank
Vice Admiral
- Joined
- Jul 29, 2008
- Messages
- 5,346
Been a while since I posted in this group....hope the same knowledgeable and helpful folks are still around. 
Background : Boat has been on blocks in the boathouse for 5 years....properly fogged and winterised.....in Canada. One screw-up was that I did not drain the carbs.
Launched last Sunday.....brain f**t.....flipped it. Power head with cover on (likely does not matter) was underwater (not running) for maybe 5 minutes total before I was able to right the boat.
Pulled plugs and got seafoam and fogging oil into cylinders. Cranked for 15-20 seconds. There was a bit of spray out of plug holes. Repeat 5 times. Spray was now entirely petroleum-based.
Checked oil tank and no water ingress.
Got fresh tank of 50:1. Pulled carb drain plugs and pumped fuel through until "seemed" clean. reinstalled drain plugs and engine started, but ran quite rough, and was a balancing act to keep running. Choke....1/2 choke....feather idle throttle....etc. Ran fogging oil into cylinders through carb throat with butterflies open while stalled. Probably got 2/3 of a can through it. Lots of smoke.
Could keep going for 3-5 minutes at a time. Stalled, fogged, and restarted.
Ran it for 3/4 hour.
It was good and warm.
Pulled #1 carb. Dismantled. Should have drained them 5 years ago pre-storage.
We had monsoon rain that day and I could not pull the other 2.
Have a full carb kit for all three.
But I cleaned and reassembled the carb I removed.
(never pulled a carb as easily....the front, through-bolts are genius. Does OMC know about this? )
The carb kit was $$$ but never seen any kit as complete!
During the process I realised that there are no fuel pump parts. They are not in stock but the dealer ordered them....arrive next Tuesday.
I understand that time is critical to get this running and out for a cruise to really get it dried out and lubed.
The dealer thought I could wait until Tuesday based on the short immersion and the 3/4 hour run time.
Question 1: Do you all agree that I can wait until then to get this running properly?
Also, I realised that the fuel lines are not in perfect shape, so I should change them out.
Obviously there is economy of labour if I do it all at one (including the fuel pump)
The manual (Tohatsu OEM) does not indicate fuel line size or length.
The motor is at the lake house and I need to take all parts from in town.
Question 2: Does anyone know the sizes and lengths of fuel line I would need to replace all from the fuel tank connection on the motor throughout? I am guessing that 2 feet of 1/4" would be lots for that size. But I did not get all 3 carbs off before I got rained-out, so could not see the routing visually.
Question 3: If I was to finish the carb rebuild (tomorrow) without the fuel pump parts is it possible to pull the fuel pump (say, next Wednesday) without pulling the bottom carb?
Thanks....long but hopefully relatively understandable.
Background : Boat has been on blocks in the boathouse for 5 years....properly fogged and winterised.....in Canada. One screw-up was that I did not drain the carbs.
Launched last Sunday.....brain f**t.....flipped it. Power head with cover on (likely does not matter) was underwater (not running) for maybe 5 minutes total before I was able to right the boat.
Pulled plugs and got seafoam and fogging oil into cylinders. Cranked for 15-20 seconds. There was a bit of spray out of plug holes. Repeat 5 times. Spray was now entirely petroleum-based.
Checked oil tank and no water ingress.
Got fresh tank of 50:1. Pulled carb drain plugs and pumped fuel through until "seemed" clean. reinstalled drain plugs and engine started, but ran quite rough, and was a balancing act to keep running. Choke....1/2 choke....feather idle throttle....etc. Ran fogging oil into cylinders through carb throat with butterflies open while stalled. Probably got 2/3 of a can through it. Lots of smoke.
Could keep going for 3-5 minutes at a time. Stalled, fogged, and restarted.
Ran it for 3/4 hour.
It was good and warm.
Pulled #1 carb. Dismantled. Should have drained them 5 years ago pre-storage.
We had monsoon rain that day and I could not pull the other 2.
Have a full carb kit for all three.
But I cleaned and reassembled the carb I removed.
(never pulled a carb as easily....the front, through-bolts are genius. Does OMC know about this?
)The carb kit was $$$ but never seen any kit as complete!
During the process I realised that there are no fuel pump parts. They are not in stock but the dealer ordered them....arrive next Tuesday.
I understand that time is critical to get this running and out for a cruise to really get it dried out and lubed.
The dealer thought I could wait until Tuesday based on the short immersion and the 3/4 hour run time.
Question 1: Do you all agree that I can wait until then to get this running properly?
Also, I realised that the fuel lines are not in perfect shape, so I should change them out.
Obviously there is economy of labour if I do it all at one (including the fuel pump)
The manual (Tohatsu OEM) does not indicate fuel line size or length.
The motor is at the lake house and I need to take all parts from in town.
Question 2: Does anyone know the sizes and lengths of fuel line I would need to replace all from the fuel tank connection on the motor throughout? I am guessing that 2 feet of 1/4" would be lots for that size. But I did not get all 3 carbs off before I got rained-out, so could not see the routing visually.
Question 3: If I was to finish the carb rebuild (tomorrow) without the fuel pump parts is it possible to pull the fuel pump (say, next Wednesday) without pulling the bottom carb?
Thanks....long but hopefully relatively understandable.
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