01 200xl carb no start after fuel pump rebuild

[dsiekman]

I rebuilt the fuel pump due to an intermittent loss of rpm while under way. Found some yellow flakes maybe 1/8-1/4” in size. Enough to cover a quarter in one of the chambers. Rebuilt and reinstalled and now no start. It doesn’t smell flooded so I’m guessing a fuel delivery issue. Yes, it went back together correctly. Any thoughts?

 

[alldodge]

If pump is running, then check fuel pressure

 

[Dukedog]

pull tha hose going to tha carb.. turn it over ta see if its pumpin'.. if not rebuild it again.. make sure tha vacuum hose is clear and hooked up...

first make sure ya gettin' fuel from tank to bulb ta fuel pump...

 

[Faztbullet]

Over doing them dang plastic rivets can cause problems also....

 

[dsiekman]

I tried to get there yesterday but we had a strong north wind and it blew the water out of the river. I’m not sure I’ve ever seen the tide so low. Will try to get there one day this week.

Bulb was firm so I’m at least getting fuel to the pump.

 

[leonreno]

Sounds like your fuel lines were breaking down, you need to change the fuel lines, replace fuel filters and clean carbs.

 

[dsiekman]

I rebuilt the boat over the winter. Lines, filter, bulb, etc are all new. The motor was a running take-off from a guy moving up to 250’s. It was running strong when they came off this summer. Sat for 2-3 months then was installed on my boat. When it was first installed it fired right up. Ran it maybe 30 seconds on the hose and shut down. It sat two more weeks then refused to start. Same issue. Cranked and cranked but nothing. Also no smell of flooding. Mechanic thought the float was stuck but that doesn’t make sense to me. All three would have to be stuck. I think it’s between the carbs and the primer bulb. Is there a check valve somewhere that might be stuck?

 

[Dukedog]

I think it’s between the carbs and the primer bulb. Is there a check valve somewhere that might be stuck?[/QUOTE

tha only thing that "might" be between tha bulb and pump will be a quick connect, bayonet type connection..


see post #3.. pull "supply" hose at pump.. pump bulb.. should get gas discharge?.. pull supply at carbs.. turn motor over.. should pump gas?..

 

[dsiekman]

Verified flow all the way to the carbs. Still wouldn’t star. Out of frustration I tapped the carbs a few times with my screwdriver handle and tried again. She coughed and ran (rough) for a few seconds and died. No restart. I went back to tapping, a bit more “enthusiastically”. Turned the key and she fired and ran! I could feel the fuel pulsing through the fuel line so I don’t think that’s it. Guessing it’s time to rebuild the carbs?

 

[leonreno]

Sounds like a good idea. I clean mine every two years. Order the gasket kits for the carbs and then pull apart and clean. Not too hard. I don’t order the kit with needle and seat as they have never been a problem. Just remember where everything goes when done, and keep carbs separated. I took pictures of carbs and motors before removal so I knew where all the hoses went.

 

[dsiekman]

In the short term I’m considering unscrewing the t fitting going into each carb and shooting some carb cleaner in. Maybe run a q tip around inside and see if I can get anything out.

 

[leonreno]

On my carbs, removing the drain plugs give you direct access to the main jets, could remove the plug and use aerosol carb cleaner and spray into the jets. Just be sure you have them clean before running motor too much, clogged jets mean no gas which means no oil which means blown motor. Believe me I know, rebuilt this motor six years ago due to a clogged carb, that’s when I learned to clean them myself and keep them clean, cheap insurance.