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Different exhaust airflow for both exhausts

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JTerra
L Plate Warrior



Joined: 03 Nov 2015
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PostPosted: 13:39 - 23 Dec 2015    Post subject: Different exhaust airflow for both exhausts Reply with quote

Hey guys,

I have a Leonart Daytona 125 which seems to have a Chinese version of honda rebel engine. The motorcycle right exhaust appears to have less airflow than the exhaust on the left, the left exhaust appears to throw more of a pop sound than the one on the right but when I rev both appears to have the same (more or less) airflow. What could be the cause for this? Or what would be the order of causes for this?
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Rogerborg
nimbA



Joined: 26 Oct 2010
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PostPosted: 14:37 - 23 Dec 2015    Post subject: Reply with quote

Did you get the fuelling problems from your previous post fixed?

Don't guess, diagnose. Let it idle and pull both spark plugs. What colour are they?

If you really think there's a problem, buy a compression tester and test both cylinders.
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JTerra
L Plate Warrior



Joined: 03 Nov 2015
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PostPosted: 16:16 - 23 Dec 2015    Post subject: Reply with quote

Rogerborg wrote:
Did you get the fuelling problems from your previous post fixed?

Don't guess, diagnose. Let it idle and pull both spark plugs. What colour are they?

If you really think there's a problem, buy a compression tester and test both cylinders.


Yep, turns out one of the sparks was bent out so it was failing to generate spark sometimes which caused the erratic sound coming from the motorcycle. I'm not trying to guess, I'm just checking what could be the causes while learning as i go if it happens to be something harder like the engine springs adjustment i'll leave that for the mechanic.

Considering i was the one who adjusted the mix and check the sparks, i had the engine run slightly rich. 2.5-2.75 turns

The engine spring adjustment is the one that i feel might be causing this, considering the motorcycle for some time worked better with the left cylinder it could've thrown them off sync by having different cylinder/springs burn-in? But this is just a guess.
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