Knocking noise came out of nowhere

ricardoguitars · 07-05-2016, 09:03 AM

Hello everyone

My 250cc 169FMM motorcycle got a knocking noise suddenly, it is new, it only has 600 km, the noise seems to come from the bottom of the engine, I was suspecting a valve lash issue, but not sure if that's the issue since the noise seems to come from the bottom of the engine, not the top

I made the first oil change already, it took 1 liter.

Thanks for your help.

BlackBike · 07-05-2016, 09:54 AM

Mine takes 1 us quart. =.946 liter. About right just make sure you top off correctly by sight.

ricardoguitars · 07-05-2016, 03:58 PM

I took it to the mechanic today, he thinks the camshaft is the suspect, it could have ran low on oil, overheated and caused the issue, I didn't measured the quantity of oil that I took off when I did the last oil change, so I don't know if it was low; the overheat issue is a possibility, I drive a lot in heavy traffic with lots of idling involved, being an air cooled engine I guess it doesn't like idling, i will keep commuting on my scooter and leave the 250 for the faster roads and off road usage.

07-05-2016, 09:03 AM	#1
ricardoguitars Join Date: Jun 2016 Location: Costa Rica Posts: 82	Knocking noise came out of nowhere Hello everyone My 250cc 169FMM motorcycle got a knocking noise suddenly, it is new, it only has 600 km, the noise seems to come from the bottom of the engine, I was suspecting a valve lash issue, but not sure if that's the issue since the noise seems to come from the bottom of the engine, not the top I made the first oil change already, it took 1 liter. Thanks for your help.
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07-05-2016, 09:54 AM	#2
BlackBike Join Date: Feb 2016 Location: George West, Texas Posts: 4,097	Mine takes 1 us quart. =.946 liter. About right just make sure you top off correctly by sight. __________________ ***************************************** 2015 Bashan"Blaze" BS250GY-31 (DB-07K-250) GONE 2017 Suzuki V Strom 650 XT "We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin~
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07-05-2016, 03:58 PM	#3
ricardoguitars Join Date: Jun 2016 Location: Costa Rica Posts: 82	I took it to the mechanic today, he thinks the camshaft is the suspect, it could have ran low on oil, overheated and caused the issue, I didn't measured the quantity of oil that I took off when I did the last oil change, so I don't know if it was low; the overheat issue is a possibility, I drive a lot in heavy traffic with lots of idling involved, being an air cooled engine I guess it doesn't like idling, i will keep commuting on my scooter and leave the 250 for the faster roads and off road usage.
	0