Maintenance & Technical > KX500 Original

KIPS valve

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kmix5:
So I was reading that you should clean your powervalve at least once a year! I've never even touched mine. The last time I did my top end I had it resleeved! my question is, when a cylinder is resleeved is it common practice to clean the PV? do they hot tank the jug? the shop I took it to is no longer in business, so i'm not even sure who did the work! I'm Also wondering if there's a way to clean them on the bike? I'm thinking no, but hoping there's some guru on here that knows a trick!

sandblaster:

--- Quote from: kmix5 on October 26, 2013, 06:18:02 AM ---So I was reading that you should clean your powervalve at least once a year! I've never even touched mine.

--- End quote ---
It wouldn't hurt but it really depends on the type of fuel and oil you have been running, how you ride, and how well your bike is tuned.
I have one that was cleaned after 12 year of riding.
It had very little carbon on it and took very little cleaning.
Most of them I get in the shop look very bad with tons of carbon and goo.


--- Quote from: kmix5 on October 26, 2013, 06:18:02 AM ---The last time I did my top end I had it resleeved! my question is, when a cylinder is resleeved is it common practice to clean the PV?

--- End quote ---
The Exhaust valve is completely removed when the cylinder is sleeved.
A good company will clean it up and replace anything worn.


--- Quote from: kmix5 on October 26, 2013, 06:18:02 AM ---do they hot tank the jug? the shop I took it to is no longer in business, so i'm not even sure who did the work!

--- End quote ---

They should but that doesn't mean they do.


--- Quote from: kmix5 on October 26, 2013, 06:18:02 AM ---I'm Also wondering if there's a way to clean them on the bike? I'm thinking no, but hoping there's some guru on here that knows a trick!
--- End quote ---

I don't know of any way to clean them effectively on the bike.

kmix5:
I guess I'll pull the exhaust off and take a look, make sure it's moving freely. Started running rough on the bottom, cleans out and runs strong on the top! I'm pretty sure it's a float issue, but gonna check everything out! I've never checked the reeds either, so I guess I'd better look at that too!

sandblaster:
Good idea.
Reeds are a common problem and we seem to be having a rash of bad reeds on this site as well as others.

kmix5:
well, pulled it all apart, KIPS valves looked outstanding! Reeds looked to be in good shape, although I could see a tiny amount of light were they should seal. Tried turning them over, made it worse! Not sure if that's enough to make it run the way it is! Time for a V-Force I guess! leaves me with the carb! I know the jetting is correct, cause it's what I've been running for years! float level is what I'm thinking! Another thing I noticed is, if memory serves me, isn't there supposed to be a copper gasket for the exhaust?

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