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Timothy SmithAug 4, 2025
Why is the exhaust noise level too high on my APRILIA M245M?
- DDebra GregoryAug 4, 2025
If the exhaust noise level is too high on your APRILIA Engine, it could be due to a faulty reed valve on the secondary air device, which may not be closing correctly and damaging the rubber hose between the device and the head tube. The suggested solution is to replace the device and the hose. Another potential cause is a missing rubber seal on the first filter; in this case, you should install the missing seal.
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