Motor Knock??? - Club700XX - Honda TRX700XX Forum
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post #1 of 10 Old 05-03-2012, 10:06 AM Thread Starter
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Motor Knock???

New to the forum. 2008 TRX700XX K&N other than that stock. Swamped it a few weeks ago to the handlebars. 9 Oil changes later and some cleaning and ran fine. After a few hours of riding a I noticed a knocking sound coming from the head where exhaust exits, can't pinpoint the exact location though. Don't know if the water is related or not. Valves were adjusted before the swamping it. I don't notice any power loss, doesn't cut out or die at all. The more I ride the worse the knock gets. Just changed oil for the 10th time since and it was very dark black and had about an hour of riding on it. Any ideas at all would be appreciated. Thanks
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post #2 of 10 Old 05-03-2012, 04:55 PM
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People are telling me that they're not related, but I got mine in some deep water when my timing chain started making some noise. It wasn't like what you're saying, but it was enough to make it cut the engine off. Maybe thats a lot...

none the less, i changed my cam chain and the noise is gone. Sometimes it sounded like a knocking noise. In fact, here's a video.



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post #3 of 10 Old 05-03-2012, 05:22 PM
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lextrx,
Are you sure the spark plug is not firing through the side (shorting out to something near-by)? Each time that noise is heard the exhaust note changes as though the spark plug isn't firing evenly. Just a thought.
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post #4 of 10 Old 05-18-2012, 10:13 AM Thread Starter
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Mine sounds a little different that that. More consistent knocking. Here is a vid.

I am not sure how to upload videos on here yet sorry about that.
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post #5 of 10 Old 05-18-2012, 10:22 AM Thread Starter
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post #6 of 10 Old 05-18-2012, 12:18 PM
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valves?

2009 700xx
barkers full pipe,ehs programmer,uni filter,no lid
PADDLES--skat trak haulers 22 11 10 8 paddle
1989 yamaha banshee
not stock
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80hp
paddles skat trak haulers 22 11 8 14 paddle
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post #7 of 10 Old 05-18-2012, 01:16 PM Thread Starter
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My first thought too. Adjusted the valves with no change in sound.
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post #8 of 10 Old 05-22-2012, 10:24 PM
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I'd check your cam chain. Even though mine wasn't consistent like yours - that's EXACTLY what it sounded like and RIGHT AFTER I swamped mine. That does not solid like a crank bearing to me.


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post #9 of 10 Old 05-27-2012, 10:21 AM
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After swamping it and doing all the Oil changes have you been cleaning the oil screen? Caus that doesn't sound healthy, if the screen is blocked it cOuld of caused oil starvation

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post #10 of 10 Old 06-01-2012, 04:53 PM Thread Starter
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Where is the screen and how do I get to it?
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