February 2023 - If it works, Leave alone!!!
Decided to clean the carburettor for no apparent reason.
Filtered muck inside the bowl. Imagine if filter was not there.
Cleaned up.
Magsol as usual.
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Assembled back. O-ring was elongated and was not fitting properly, but somehow managed.
Fuel cock strainer cup. Pre-filter stage. There was thicker muck. Cleaned it out.
While installing, there was petrol leak from the carb bowl through the gap. O-ring was the culprit.
Last minute Sunday part hunt and got hold of this non-OE repair kit, for just the O-ring. Carb is Mikuni and kit says Keihin Japan.
Motolabs Carburretor Repair Kit - 16155-885-307 - ₹ 290.00
Had almost all child parts. OE parts would easily go past 2.5 for this much stuff.
The kit minus the O-ring.
Cheapness was speaking all over.
Installed it. No leak initially, but overnight, it was leaking 10x the elongated OE rubber.
It was literally flat. Comparing old one, which still retained the round cross section.
Straight to Yamaha, got the original one. Made in Japan.
Carburettor Bowl O-Ring - 21C-14147-00 - ₹ 231.00
Fits like a glove.
Assembled and installed back. Happy ending.