Bubbly Engine Sound on Decceleration
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Bubbly Engine Sound on Decceleration
Hey Everyone,
My engine has started to run a bit differently, and I most noticebly can hear a sort of louder, deeper, sort of bubbly sound when I'm downshifting which starts at about 4 thousand rpms until I pull the clutch in and totally stop the bike. I had the carbs tuned about 4 weeks ago, and this problem started about 2 weeks ago.
My power is still fine, and everything else seems to be ok. I was wondering if this could be a problem, or if it is just the new sound my engine is making due to the carb adjustment?
My engine has started to run a bit differently, and I most noticebly can hear a sort of louder, deeper, sort of bubbly sound when I'm downshifting which starts at about 4 thousand rpms until I pull the clutch in and totally stop the bike. I had the carbs tuned about 4 weeks ago, and this problem started about 2 weeks ago.
My power is still fine, and everything else seems to be ok. I was wondering if this could be a problem, or if it is just the new sound my engine is making due to the carb adjustment?
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Sounds prolly like a tuning issue ... ?
but....do you mean the sound from the exhaust is different ? does it burble and pop more now ?
If its just started out of the blue without anything being done to her .. it might
just be a small exhaust leak...
When air gets into the exhaust from a leaking header pipe gasket or a tiny muffler leak , it can make them burble quite a bit......just a thought mate .....might be worth a check...
but....do you mean the sound from the exhaust is different ? does it burble and pop more now ?
If its just started out of the blue without anything being done to her .. it might
just be a small exhaust leak...When air gets into the exhaust from a leaking header pipe gasket or a tiny muffler leak , it can make them burble quite a bit......just a thought mate .....might be worth a check...
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The sound is coming from the engine, and not the exhaust itself. I am going to check the spark plugs tonight and make sure they are good. I'm thinking my header may be leaking...? But wouldn't I see some kind of smoke in my exhaust if this was the issue?
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I'm thinking my header may be leaking...? But wouldn't I see some kind of smoke in my exhaust if this was the issue?
A very small leak on the other hand will only generally let air in and cause popping from the exhaust..
What Cageless suggests is a good thing to check as well ...
When a muffler gets too empty (burnt out packing ) they will tend to suck too much air back in and then they will start popping as well....
well done Cageless
I missed that ...
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From: I live in southwest Florida
I am going to agree with classic here on this one however your bike could be running a little too lean when you check the plugs you are looking for a nice tan color if it is white you know what the problem is too much air. let us know what oyu find
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The bushings on my front tire started going to crap out on the weekend due in part to the terribly uneven wearing on my tire I'm sure. I took my bike in to get a new tire/bushings and they are going to take a look at the engine as well. I will let you know what their conclusion is about the engine sound.
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