Bit of a niche question - but does anyone have a clever trick, or know where I can buy a suitable tool for removing the bottom carb drain screw on my 30hp Yamaha 3 cylinder.
I manage with a lot of swearing and fiddling with a kitchen knife but it’s not pretty or quick! It’s in such a fiddly location I can’t get a spanner or a socket set to get it.
I've had this issue! In the end I decided the safest bet was to take all three carbs off. Bit of a pain but at least you know it's been done properly without risking breaking anything. The RNLI fit nice big thumb screws on these drain screws so you don't need a tool. Would quite like something similar.
Thanks guys - deffo like the sound of those thumb screws , would be much easier.
I don’t really like the running the engine dry trick. I do that to a point every time I come in with the boat, but for winterising I like to drain the carb properly, blow it through with an air line etc.
Also always reluctant to run a 2 stroke dry.. I know its pedantic but they rely on lubrication in the fuel so it can’t be great for the cylinders to run it dry (appreciate that’s a properly cautious view)
It’s the autolube version .. and a fair amount still comes out of the carb when I drain it..
I just wish the screws were easier to get to, if they were accessible i’d be tempted to drain them after every outing.
I’m paranoid because when I first got the engine it was a bit of a nightmare to sort, the carbs had been left full and the jets were so badly seized and clogged it took a blow torch and a lot of fiddling to clean them up.
Didn’t know that about the cylinders - would make sense for sure!
spy-sea-one
