My 954 is starting to use some oil - Honda Motorcycles - FireBlades.org
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post #1 of 7 Old 06-29-2009, 10:22 PM Thread Starter
 
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My 954 is starting to use some oil

I have 23000 on my blade, had it since 4000 miles, I have been pretty hard on it, always let it warm up before beating on it, It has progressed to approximately 2 quarts of oil between oil changes, I keep it full, and have always changed it every 3500 to 4000 miles, always ran royal purple in it, I am wondering if the valve guides are more common or am I going to have to drop this engine out and re ring it. Just trying to get some opinions before I proceed.
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post #2 of 7 Old 06-30-2009, 4:33 AM
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Re: My 954 is starting to use some oil

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Originally Posted by rjsimon2nd View Post
I have 23000 on my blade, had it since 4000 miles, I have been pretty hard on it, always let it warm up before beating on it, It has progressed to approximately 2 quarts of oil between oil changes, I keep it full, and have always changed it every 3500 to 4000 miles, always ran royal purple in it, I am wondering if the valve guides are more common or am I going to have to drop this engine out and re ring it. Just trying to get some opinions before I proceed.
Have somebody follow you for a while when you're riding fairly hard. Closing the throttle from high revs should blow smoke as the engine sucks oil through the valve guide seals. If it's blowing smoke when you get on the throttle out of the turns then it's more likely the rings.
A compression test will also confirm if the rings are worn.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #3 of 7 Old 06-30-2009, 1:40 PM
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Re: My 954 is starting to use some oil

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A compression test will also confirm if the rings are worn.
Cylinder leakage test will be better IMO. It will rather show which way the air is going out (rings or valves).
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post #4 of 7 Old 06-30-2009, 3:53 PM
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Re: My 954 is starting to use some oil

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Cylinder leakage test will be better IMO. It will rather show which way the air is going out (rings or valves).
A compression test should always include a leakdown test but neither will diagnose bad valve guides or seals as they only leak while the valves are open (no compression but lots of suction on the induction stroke).
You can determine if it's rings or valves with a wet test after the dry test - simply by pouring a tablespoon of oil into the cylinder and re-doing the compression test. If it doesn't change significantly then it's a valve. If it does, then the rings are leaking and the oil is sealing them.

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post #5 of 7 Old 07-05-2009, 9:39 PM Thread Starter
 
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Re: My 954 is starting to use some oil

Yet if I do a leakdown test and the cylinders do hold up good, it does say the valve guides have a problem, if the cylinders do leak then the head goes out anyways cause it is off and needs to be ported a lil and polished a lot
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post #6 of 7 Old 07-05-2009, 9:42 PM
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Re: My 954 is starting to use some oil

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Yet if I do a leakdown test and the cylinders do hold up good, it does say the valve guides have a problem, if the cylinders do leak then the head goes out anyways cause it is off and needs to be ported a lil and polished a lot
To replace the rings you need to strip the entire motor - transmission, crank and head to get the pistons out.

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post #7 of 7 Old 07-05-2009, 9:43 PM Thread Starter
 
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Re: My 954 is starting to use some oil

yup, well aware of that one bladeracer, thinking this is going to suck
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