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LF: Float Needle + seat o-ring (BST40 Carb as in DR650/KTM640/XR400R/...)

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Joined
Sep 19, 2009
Messages
126
Reaction score
4
Location
Gauteng
Bike
KTM 640 Adventure
Hi dogs

Looking for a float needle and the o-ring for the float seat as used in a BST40 (that appears on various bikes; DR650 / a number of KTMs such as KTM640 / XR250R / XR400R / and others)
Was hoping to find one locally before having to wait for an order from overseas...
58431020000-needle-valve-ktm-lc4-640-98-07-.jpg


Either the float needle or the float seat o-ring in my carb (Mikuni BST40) seems to be worn out as the bike is draining fuel through the overflow (the float shutoff doesn't work because of this)
I've swapped these out with spares (they weren't new either) that I had, and that solved the problem for a while, but now it's started again and is worse than before.
Neither the o-ring, nor the needle is sold separately; only as part of a set (needle + seat) (see https://www.motorcyclespareparts.eu/en/ktm-parts/58431020000)
 
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