New member just got a Valkyrie has questions
Sixgunluvr:
Seems like it doesn’t leak once I’ve gone somewhere and head home. In other words when I get somewhere and look, there’s a few drops, if I wipe them dry when I get home, it seems to be dry.
Weird…
KTRT:
If I might chime in, you might suffer from the same problem as I did, the leak wasn’t coming from the carbs exactly, it was going from the fuel rails behind the carb. I’m told by more experienced members that it’s a common issue with o-rings that are 20 years old.
In fact, I think you should watch out for this leak getting worse overtime, this is what happened to me until it leaked like a sieve last Sunday.
Sixgunluvr:
Quote from: KTRT on August 28, 2025, 04:41:17 AM
If I might chime in, you might suffer from the same problem as I did, the leak wasn’t coming from the carbs exactly, it was going from the fuel rails behind the carb. I’m told by more experienced members that it’s a common issue with o-rings that are 20 years old.
In fact, I think you should watch out for this leak getting worse overtime, this is what happened to me until it leaked like a sieve last Sunday.
Yes, I agree. I do think that is where it is coming from. I am trying to limp my way into October where I will attempt to pull the carb rack myself once the bike is in storage and send it somewhere to be refurbished/cleaned/rebuilt. I did not realize when I bought the bike that it has more O rings than a redhead has freckles. :-\
Draeger:
Change the O-rings. Easy, quick job. Probably have to do it anyway at this time in the bike's life. You won't regret it and it may cure your problem.
98valk:
Quote from: KTRT on August 28, 2025, 04:41:17 AM
If I might chime in, you might suffer from the same problem as I did, the leak wasn’t coming from the carbs exactly, it was going from the fuel rails behind the carb. I’m told by more experienced members that it’s a common issue with o-rings that are 20 years old.
In fact, I think you should watch out for this leak getting worse overtime, this is what happened to me until it leaked like a sieve last Sunday.
20 yrs of age has nothing to do with it. people were using the 20 yr self life spec which has zero to do with installed life. conditions such as chemicals such as those on many over the counter fuel additives don't like Buna-n aka nitrile oem o-rings.
manual states all nuts, bolts, etc., should be checked for tightness every 8k? miles. the end nuts of the thru bolts that hold the carb banks together do/can get loose, road vibrations and the expansion/contraction of the thru bolts from the engine heat cycles will cause those nuts to get loose.
my '98 brought new as left over in '00 and now 86k miles twice I had to tighten the nuts. leak stops.
https://madisongroup.com/o-rings-an-effective-simple-and-versatile-sealing-solution/
""In order to seal reliably, a continuous “seal line” must be formed at the interface between the O-ring and the mating gland surface. The creation of this “seal line” is a result of a combination of the gland design, the O-ring cross-section, and the proper level of compression of the elastomeric material.""
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