Ducati Monster Forum

Moto Board => Tech => Topic started by: mr.freezer on May 23, 2013, 02:24:10 AM

Title: M 620 ie wet clutch noise
Post by: mr.freezer on May 23, 2013, 02:24:10 AM
Hello, I am new here and I am not a native speaker so maybe it will be difficult for me to explain my problem.. I've just bought ducati monster 620 ie 2003. As I know there is wet clutch. When I start it I hear a little noise from clutch. When I grab the clutch lever this noise stops. Is it normal wet clutch to be so noisy?? thanks a lot
Title: Re: M 620 ie wet clutch noise
Post by: stopintime on May 23, 2013, 09:43:17 AM
I don't know how noisy your "noisy" is, but yes it's normally easy to hear it - even if you have loud exhaust. It's the same thing that happens on bikes with a dry clutch, but less loud because it's closed and covered in oil.

It's very unlikely, but IF the noise is "too loud" (ask another wet clutch Duc owner or a dealer) it CAN indicate that the clutch gears are worn. I wouldn't worry about it - especially since the noise changes with clutch lever pulled - which is to be expected.
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 26, 2013, 11:26:58 PM
here is vid of my clutch..

Ducati monster 620 ie clutch noise (http://www.youtube.com/watch?v=JJ1SuvfCvtw#)
Title: Re: M 620 ie wet clutch noise
Post by: stopintime on May 27, 2013, 12:33:44 AM
Yes, quite normal  ;)

Is it working well?
How many miles?
What kind of oil and how often do you change it?
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 27, 2013, 03:45:18 AM
i've just bought it... it has 34000 km on tacho... i am going to oil change next week... i don't know what oil was used in it before.
Title: Re: M 620 ie wet clutch noise
Post by: stopintime on May 27, 2013, 05:23:10 AM
Reasons I asked are:

If it's very old, the gaps between teeth on plates and their notches in basket CAN become large enough to cause rattle. Probably/maybe not on a 34K bike...

If the oil is old/bad it will make more noise.

If it doesn't function well, the plates might be worn/warped = more noise, but then you'd probably have functional issues.

My third clutch lasted 40K km with semisynthetic 15/50 (could go with 20/50) after the first two clutches both quit at 25K km with synthetic 10/40.  This topic has many opinions.  If your bike is parked outside in freezing temperatures - maybe 10/40 is better.
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 27, 2013, 06:38:23 AM
it is not parked outside in freezing temperatures. now it is around 15 °C and it is the temperature i start riding at. so you recommend semisynthetic 15/50?? i think there is even less noise with oil with higher viskosity..
Title: Re: M 620 ie wet clutch noise
Post by: ducpainter on May 27, 2013, 08:28:35 AM
Ducati recommends 10W/40 because of the plain bearing heads.

I'd stick with that.

If you can find a moto specific, or a non energy conserving oil (one with no friction modifiers) you'd be good to go.

I like synthetic moto specific because they seem to do better in transmissions.

Have you read our oil thread?
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 27, 2013, 11:19:14 PM
i 've started to read the oil thread but i got lost after a while...
Title: Re: M 620 ie wet clutch noise
Post by: kokis on May 28, 2013, 05:24:56 AM
Sorry for braking in your thread.
But I had similar problem on 696. I got new plates 20-50 Motul oil which i use for about 2k miles. And once on red light I heard loud noise that I never heard before. Just like at your video with difference that I have no noise at all at normal conditions. I turned off engine and gear seems to be stuck, and only after several attempts I've got it to neutral. What was it? Bad clutch pack installation?
Title: Re: M 620 ie wet clutch noise
Post by: LowThudd on May 28, 2013, 10:38:34 AM
Shift fork return spring? Just a guess.
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 28, 2013, 12:00:46 PM
i've just found this video... and as i was watching it, there was a noise vere similar to mine clutch..... watch this video at 06:00... this is probably the thing that makes the noise in my clutch...  Ducatitech.com "How to" Wet Clutch Install (http://www.youtube.com/watch?v=WFv6YIK3WyY#)
Title: Re: M 620 ie wet clutch noise
Post by: kokis on May 28, 2013, 02:34:17 PM
Quote from: LowThudd on May 28, 2013, 10:38:34 AM
Shift fork return spring? Just a guess.

Hm, Gotta check. I have new rearset pegs or whatever it called. Thanks.
Title: Re: M 620 ie wet clutch noise
Post by: memper on May 30, 2013, 04:56:05 PM
Quote from: mr.freezer on May 28, 2013, 12:00:46 PM
i've just found this video... and as i was watching it, there was a noise vere similar to mine clutch..... watch this video at 06:00... this is probably the thing that makes the noise in my clutch...
No vid...
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 30, 2013, 11:56:35 PM
oh sorry.. i've just edited it..
Title: Re: M 620 ie wet clutch noise
Post by: stopintime on May 31, 2013, 01:58:40 AM
Hmmm..

If the noise is close to that kind of obvious rattle, I think it's smart to open it up and check everything.
Title: Re: M 620 ie wet clutch noise
Post by: mr.freezer on May 31, 2013, 08:52:22 AM
I'm going to change timing belt, oil a nd check everything next week.. thanks a lot for help