strange noise on cold engine

23147 Views 90 Replies 22 Participants Last post by Hiei, 2 mo ago

alik9992004

Discussion Starter · Jan 4, 2020

Hello for everyone ! Merry christmas and happy new year !!!

my 2015 gsxs1000 has strange noise only on cold engine on few seconds , about to days . bike has new oil motul 7100 , new oem filter . 5000 kilometers on odo . can't visit dilership , we don't have it in out country , i buy this bike on copart auction .

will try too attached video , for better understanding .

Maybe someone has same problem , or what it could be ??? noise comes i think from top of engine .

here is youtube link ..

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Rapido1

· #2 · Jan 4, 2020

Definitely something wrong. That noise is not normal. Is it coming from inside the clutch cover? Sounds like something hitting the inside of the case as it spins. Are those scrape marks on the right side frame? Could the bike have been dropped, previous owner replaced the clutch cover, but something not right inside?

If it does sound like coming from behind the clutch cover, lean the the bike on something tilted as far over left as you can (so oil won’t leak) and remove the cover to see how it looks inside.

Engine noises are hard to pinpoint where they’re coming from as sound travels through other parts. An old trick is to use a longer standard screwdriver, put the handle in your ear and touch the blade to the case, just like a stethoscope (if you don’t have the real thing!)

twag4

· #3 · Jan 4, 2020

Sounds like the starter gear didn’t dis-engage

Reactions: 1

Beerded Wanderer

· #4 · Jan 4, 2020

twag4 said:
Sounds like the starter gear didn’t dis-engage

This is my thought too

Reactions: 2

alik9992004

Discussion Starter · #5 · Jan 6, 2020

Rapido1 said:
Definitely something wrong. That noise is not normal. Is it coming from inside the clutch cover? Sounds like something hitting the inside of the case as it spins. Are those scrape marks on the right side frame? Could the bike have been dropped, previous owner replaced the clutch cover, but something not right inside?

If it does sound like coming from behind the clutch cover, lean the the bike on something tilted as far over left as you can (so oil won’t leak) and remove the cover to see how it looks inside.

Engine noises are hard to pinpoint where they’re coming from as sound travels through other parts. An old trick is to use a longer standard screwdriver, put the handle in your ear and touch the blade to the case, just like a stethoscope (if you don’t have the real thing!)

yes , i think it comes from right part of engine , as you write, it's hard to find right location , but it looks it's right side . yes , i buy this bike from copart , after damage , and clutch cover was replaced by previous owner , but before this time bike was starting well . trouble is starting from 3 days ago .

alik9992004

Discussion Starter · #6 · Jan 6, 2020

twag4 said:
Sounds like the starter gear didn’t dis-engage

how can i check it ? maybe start bike from second gear by rolling ? if it does not make this noise , that's it ???

Reactions: 1

alik9992004

Discussion Starter · #7 · Jan 6, 2020

Beerded Wanderer said:
This is my thought too

ok ,but why just only on cold engine ? and how colder it is , a sound is must loud and long . and how can i check it ?

Beerded Wanderer

· #8 · Jan 6, 2020

Don't know, I'm no professional, just a monkey who will get out the wrenches and start cursing. It just sounds like the gear isn't disengaging fully

Reactions: 1

LEAVEITSTOCK

· #9 · Jan 6, 2020

id pull the clutch in,,, see if sound changes

Beerded Wanderer

· #10 · Jan 6, 2020

LEAVEITSTOCK said:
id pull the clutch in,,, see if sound changes

Good plan, also does the noise change with revs? In gear? Wack the starter with a dead blow hammer or block of wood, see if it stops. Hard to diagnose from a vid

Reactions: 1

Packmule

· #11 · Jan 7, 2020

alik9992004 said:
how can i check it ? maybe start bike from second gear by rolling ? if it does not make this noise , that's it ???

Yes, bump roll it in second or third and see if it does it then. Like someone else suggested pull clutch lever in and see if it still does it, that will eliminate a couple of things.

alik9992004

Discussion Starter · #12 · Jan 7, 2020

3

i start engine with rolling in second gear , same noise , and also when motorcycle is in gear .

tomorrow i tried to take off starter cover , and that's what i see there ...

i think it's condensat from cold weather , and i ride everyday not as far on work , just about 2-3 miles . anyway i think first i want to try wash engine with some special fluid , and then change filter and oil . i think that oil quality is bad , so oil pump can't work properly , and need time to pump oil in system . what do you think about it ??? because , after few seconds on start , there is no noise at all .

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Reactions: 1

robstone814

· #13 · Jan 7, 2020

It sounds like CAM CHAIN TENSIONER not work properly. Maybe you can check its work smoothly.

Reactions: 2

Rapido1

· #14 · Jan 7, 2020

What is all that white goop stuff?

Reactions: 1

Packmule

· #15 · Jan 7, 2020

Rapido1 said:
What is all that white goop stuff?

I had my cover off 6 months ago and there was none of that in mine. I wonder what that could be and if that’s part of the problem?

Kassu

· #16 · Jan 7, 2020 (Edited)

There can be two reasons for this :
This may happen due to condensation in the engine. Primarily the reason for condensation is either the change in weather or you are not riding your bike enough. If you ride very short trips then your bike engine will not get enough time to burn off the water vapours. These vapours over the time will create a milky sludge the will accumulate.
The other reason is that coolant has mixed in with the engine oil. This mixing may lead to head gasket leak or even engine damage. Because with mixing up of coolant, engine oil will become contaminated, which significantly will reduce the ability of engine oil to provide lubrication and subsequently will lead to engine failure.

Reactions: 2

twag4

· #17 · Jan 7, 2020

alik9992004 said:
how can i check it ? maybe start bike from second gear by rolling ? if it does not make this noise , that's it ???

I’d push the starter while it’s running and check for change in noise. I’d exhaust all those type options, then pull the stator cover and start pulling parts off until I get to the starter clutch. That’s just me though.

LEAVEITSTOCK

· #18 · Jan 7, 2020

white is the oil additives turning condensate to a white paste to prevent rust

alik9992004

Discussion Starter · #19 · Jan 8, 2020

robstone814 said:
It sounds like CAM CHAIN TENSIONER not work properly. Maybe you can check its work smoothly.

https://www.youtube.com/watch?v=u_f2viv-bX8

maybe , but why the noise is only on cold engine ? about 10 seconds ???

alik9992004

Discussion Starter · #20 · Jan 8, 2020

Packmule said:
I had my cover off 6 months ago and there was none of that in mine. I wonder what that could be and if that’s part of the problem?

people sad that is condensat from cold wheather , and because i ride for short distance .

anyway i will change my oil today , and will check , maybe it's bad oil ?

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