Tip - Float needle seat cleaning

[Minimoto]

Hi all. I was just surfing YouTube and came across a great tip that someone might find useful.

I'm just in the process of reviving my bike after years of no use and currently trying to get the carbs set up well. This involves me running the engine using a supplementary fuel tank (plastic container with tube into carbs) whilst I tinker with things.

Doing this I noticed that fuel was flowing out through a couple of my main jets and then collecting behind the butterfly valves. I decided that this was because either the float height was wrong or the float needle wasn't seating properly. I was thinking I might have to replace the needles and needle seats if the latter.

Looking through YouTube on how to get the seats out I found a video of someone using an cotton bud in the end of a drill with some brasso polish to polish out the needle seats and the sides of the needles.

I just gave it a go and the seats came up like mirrors. After putting it all back together I topped up the carbs and couldn't see any fuel running through the main jets and out by the carb needles, so it looked like the float needles were seating properly. When I fired the bike up it certainly sounded much much better than before.

Perhaps worth taking the time to do if you have your carbs out...



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[Minimoto]

https://youtu.be/zlez_hdoWYk

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[TURK122]

That's a great tip. Wish I'd seen it before I'd rebuilt my carbs.
But now I know I'll definitely doing it next time I have the carbs off.
Thanks for sharing

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[Minimoto]

:-)

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[Cru Jones]

That's a great idea. Thanks for posting that up.