gordmac
Well-Known Member
Float chamber is mild steel and corrodes if fuel is left in it.
Honda 2.3hp Four Stroke Problem
- Thread starter Jon magowan
- Start date
Steve65
Well-Known Member
Those who have built thousands also beg to differ......drain your oil , add 250ml of oil and see where the level is
Porthandbuoy
Well-Known Member
Anyone used carb cleaning tools like this on one of these very small o/b carbs?
Steve65
Well-Known Member
Yes , I have owned a few sets of these,
I dont think there is one in the set small enough for pilot jets for small outboards
Porthandbuoy
Well-Known Member
Suspected as much, thanks. I just can't get the damn thing to rev unless the choke is out. Pilot jet, main jet and main nozzle all look clear (poked a piece of fishing line through each). The tiny holes on the side of the main nozzle are clear.
New gaskets arrived this morning. Will fit them this evening and try again.
Edit
New carb gaskets fitted ( 3 off), another poke and clean of the jets and she's running great. Started 1st pull with the choke out. Slowly closed the choke and fiddled with the mixture screw to get a smooth run. Ran it for half an hour in a wheely bin with a few 1 minute bursts at WOT.
Last edited:
gordmac
Well-Known Member
In olden times when cars had carburetors we used to clear jets by using a hand to block the carb intake with the engine running. Idea was the suction pulled the crap through the jets.
PaulGS
Well-Known Member
Late to this thread but I've benefitted hugely from the cumulative wisdom of a variety of internet sources so wanted to give something back. My 2.3 idled unreliably and then died when revs were increased. It certainly looked like a carb issue, and when I pushed the emulsion tube out (from under the main jet) it did have some holes blocked. My diagnosis was complicated by my engine having been immersed a few months previously so I also suspected corrosion somewhere in the electrics. Also, I discovered that the spark plug (I wasn't the original owner of the unit) wasn't the manual specified one. Ultimately I ended up taking the whole thing apart and adjusing the valve clearances (I assumed they'd never been done before). On putting it all back together I realised that the positioning of the coil is critical (the gap to the flywheel is supposed to be 0.3 - 0.5 mm) and I'd not set this properly when I'd last been inside the engine (to sort a clutch bearing problem). I believe that this was the central issue causing the engine to not run properly.