Suzuki DT 2.2 Fuel problem

ianc1200

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I'm sorry to ask a second question again so soon on this subject, but having freed up the engine, every time a turn the fuel cock to open fuel pours out from the carburettor. It appears to be coming from the junction of the carburettor and the front casing. I can’t see how air gets into the carb but the front end appears to be a sort of bell housing (as though air gets in there), and it’s from this joint – I think – that it’s coming out. Any ideas before I dismantle and pull apart?

Regards

IanC
 

m1taylor

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That sounds to me like the float being stuck. That will be easily rectified by cleaning the carb. I had the same problem on a Mariner 2HP, and it was easily sorted.
 

nordic_ranger

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It sounds as if fuel was left in the carburettor when it was last used and has evaporated. This has caused the float to stick. Remedy strip and clean carburettor and if possible run carburettor dry after use especially if the engine is not going to be used for a period of time. You could try carburettor cleaner first if you wish it comes in aerosol cans and you can buy it from most motor factors.
 

VicS

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Basically i agree with the others.
Either the float is stuck A gentle tap or two round the foat chamber while full of fuel might release it otherwise clean it out.
or
The float is punctured and is sinking. Take it out and shake it to to see if there is fuel inside it. If so it will have to be renewed.
Or
The float needle valve is stuck. The above gentle tap or two might free it otherwise clean it
Or
There is dirt in the needle valve. Clean it.

All these suggestions revolve around the float so unless you are happy dismantling the rest of the carb just remove the float chamber and clean as suggested.

If it is a stuck float or needle valve spraying carb cleaner in via the air intake won't do any good The offending bits will have to be soaked in it. Personally I would not bother with it, I'd clean the bits in some fresh petrol.

If you are happy about doing it clean all the jets and passages while you are at it. Any really mucky bits will need carefull cleaning with a soft copper wire but not with anything that might scratch the brass jets etc. The carb cleaner might come in handy here.

Dismantle very carefully. Work where you wont drop and lose any little bits, note where every thing has come from and check for hidden bits that might fall out without you seeing where they have come from.

The "sort of bell housing" is the air intake I think you will find. There won't be a filter.

I also agree that you should shut the full tap and run the carb dry after use. Certainly if it is to be left idle for any length of time.
 

ianc1200

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Thanks to the advice offered. Took the bowl off, cleaned it, put back together tonight & leak stopped, fired up first time.

Thought I'd take a Seagull Featherweight with me tomorrow, but it too has locked up. Time for yet more penetrative oil!

thanks again

IanC
 

LadyInBed

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On my DT2 I turn the fuel off about 5 mins before I reach the slip, in that time I am only running at tick-over. Obviously the time / fuel used will depend on your speed, so a bit of trial and error to determine at what point it is best for you to turn it off.
 
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