Suzuki 2.5 drive by me mad!

wiggy

wiggy

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So the little git dies on me on the way back to the slipway. New plug fitted, start first pull job done. Get it on the back of the dinghy and it won't run. I've now had the carb striped and ultrasonically cleaned and it runs great under load for about five minutes then dies and will only run very roughly with full throttle and constant jiggling of the choke. Any ideas? Fuel is new and clean, could it be mixture being too lean, the little blocking ball has been removed for the clean so I have access to adjust mixture.
 
It sound like an carb / fuel problem .
Do you find if you pull the choke out as it dieing if pick up again ? Is so your not getting enough fuel tho the carb .
Is your fuel old ? Try new fuel
Have you checked the fuel filter , try running it with out the filter .
Also check the needle and float , rattle the float incase it has fuel in it .
I had a problem with an Yamaha early this year , must had cleaned the carb 20 plus time ,
Before I sorted it .
Each time it would run for 10 mins and then stop and wouldn't run again .
 
Get yourself down to Machine Mart and buy a micro drill bit set for less than a tenner. Drill out the main and pilot jet to one bit size bigger. It is well documented that these Suzuki outboards are jetted lean to pass emissions tests. I've just had the same problem with a DF4. Went one size larger on both jets and transformed it.
 
Update. I've taken the fuel tap apart and think it was causing the engine to drain the float bowl when under heavy load. A little hole in a rubber part of the tap was partially blocked. Update tomorrow.
 
I had similar problem with my 3.5hp Suzikl two stroke,changing the fuel tap for a new one sorted the problem,my engine is a 1978 model,it starts so easily,I use a rope off the top of the engine,as the pull cord is a waste of time,badly designed,the pull cord comes out of the cowling at an oblique angle useless.
 
+1 The drill size you need will be between 0.50 mm and 0.65mm. Start at the smallest. Open the jet size with the smallest size and run the engine. Keep doing this until your happy your engine runs correctly through the Rev range with no flat spots. Also before you do this make sure your inlet manifold and carb gaskets are sound and it is not sucking air
 
Its not starved of air into the fuel tank is it??

Is there a vent on top of the tank to open?

I've done that a couple of times....

Tony
 
Do all of that and in a few years time when it finally gives up the ghost get somebody to buy you a Torqueedo for Christmas.

It is one of the few things that really makes you wonder why you wasted all those years pulling on bits of string and messing about with innards when you could just turn a throttle without starting anything. It's like the difference between an echo sounder and tossing a lead line.
 
RupertW said:
Do all of that and in a few years time when it finally gives up the ghost get somebody to buy you a Torqueedo for Christmas.

Are these Torqueedo completely fail safe then.....
What happens if something breaks on it or the battery runs out?
What if the sea state around your moorings changes half way in and you need extra power or speed?
These are my personal concerns with electric outboards
Click to expand...
 
I would love to have the courage to try an electric outboard for all the above reasons but I have never seen one anywhere other than at a boat show! I'd love to talk to an owner and find out what they are really like.

I have an LPG outboard and it's great!

Tony.
 
Jabs said:
I would love to have the courage to try an electric outboard for all the above reasons but I have never seen one anywhere other than at a boat show! I'd love to talk to an owner and find out what they are really like.

I have an LPG outboard and it's great!

Tony.
Click to expand...

Electrics not suitable for all locations and uses but our experience 2 and a half seasons in are:
Replaced our 5hp 4 stroke for weight reasons as it was a long faff getting it from boat stern to tender each time compared to carrying bits with one hand and assembling in a few seconds
Pushes a 3m RIB with up to 6 people at a reasonable speed - no more than I would want to do through an anchorage with a much more powerful engine
Is used for much more than half our nights on board for getting to shops/bars and an evening meal ashore and back
Absolute max for our anchoring is about half a mile each way, usually half of that.
Meter shows battery capacity and remaining range at current consumption - tend to use about 20-40% a mile at our usual 50% throttle
Unexpected advantage for me is that I don't have to accompany my wife on shopping trips as once or twice over the years the conventional engines have failed to restart when returning and I'm the engine fiddler in the crew
Obviously no starting issues as you just turn the throttle
We often are a week or more without mains and just charge the torqueedo off domestic batteries using it's "fast charger" - usually when using the engine underway but have done without the engine as it takes just a fraction of domestic capacity. This season we stopped being so unnecessarily anxious about it be 100% charged before use and tend to wait the week or so until near mains unless it's running too low.


Fair points made about them not being magically fault proof but there is a lot less to go wrong in the wet salty environment - a battery, an encased electric motor, some wires and an LCD. And I've never broken a conventional propellor in decades of sailing, so expect to be similarly careful with this one

Wouldn't have one if still on a mooring up a very long creek in Hayling Island with tides against us, and wouldn't if a couple of miles away from anchor to harbour somewhere bumpy like the Caribbean.
 
I have spoken to a few people who have them and all says the same , it's a constant worry that someone will steel them .
Also always having to make sure the battery fully charge .

Everyone say it's great there so light to get on and off the boat .
Not sure I would have one .
 
sailaboutvic said:
I have spoken to a few people who have them and all says the same , it's a constant worry that someone will steel them .
Also always having to make sure the battery fully charge .

Everyone say it's great there so light to get on and off the boat .
Not sure I would have one .
Click to expand...

We sail in similar waters and I'm sure they would work for you. We are not anxious about it being stolen around Greece and Croatia - we do padlock it to the rib just like we did the old one. But we don't padlock the rib to the harbour quay or beach. I think they are probably less easy to sell quickly (even though much more expensive) than a petrol outboard.
 
sailaboutvic said:
I have spoken to a few people who have them and all says the same , it's a constant worry that someone will steel them .
Also always having to make sure the battery fully charge .

Everyone say it's great there so light to get on and off the boat .
Not sure I would have one .
Click to expand...

You could always tie it down with that great big heavy chain of yours Vic.

Surely no-one would ever be able to cut through that .......... :ambivalence:

Richard
 
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