Suzuki DT2 choke (slight) issue

[scruff]

I have a 1970's Suzuki DT2 - even when started for the first time after the winter, it starts on the second pull - its a good wee engine.

On the last cruise, it would refuse to start with the choke on the "Start" position but would start on the first pull in the normal position then continue to run fine thereafter in the normal position. Fuel consumption felt quite high like this though - had to top up twice in an hour's explore of the upper end of West Loch Tarbert,

Presumably something needs a wee tweak for the choke to get back to working as it should - question being; what wants tweaked?

 

[VicS]

I have a 1970's Suzuki DT2 - even when started for the first time after the winter, it starts on the second pull - its a good wee engine.

On the last cruise, it would refuse to start with the choke on the "Start" position but would start on the first pull in the normal position then continue to run fine thereafter in the normal position. Fuel consumption felt quite high like this though - had to top up twice in an hour's explore of the upper end of West Loch Tarbert,

Presumably something needs a wee tweak for the choke to get back to working as it should - question being; what wants tweaked?

Check the choke is operating correctly

Possibly the carb is flooding,. Check/ replace the needle valve. Check the float and its height


Explded diagrams https://www.boats.net/catalog/suzuki

Possibly a manual at http://www.boatinfo.no/lib/library.html

 

[ronsurf]

I have one of these, probably the same vintage. At the moment it absolutely refuses to start, so I know it intimately as I've stripped it quite considerably trying to find the problem.

Anyway - it's a simple engine - the choke is a plate with a small hole in it the covers the air intake. If that was faulty the engine would cough and splutter and run badly. It shouldn't affect the fuel consumption as the choke mech doesn't introduce any extra fuel, it just restricts the air.

If it's running OK, then it could be a sticking float, or possibly a loose jet (there's only one). There is a common fault where the slide and the needle part company, so it could be that.

Take the covers off, disconnect the fuel line, and disconnect the two wires. Slacken the carb manifold and the whole lot can be rotated so the bottom of the carb can be taken off to reveal the float, the needle valve and the jet.

It's a faff removing the plastic end plate with the controls, and you don't really need to - you can see if the choke's operating by removing the carb, opening the throttle and looking in from the other end - a small plate should cover the inlet when you rotate the choke knob.