vibey sound when starting - .: XT660.com

tarzan · # 1 29-12-10, 21:10

Hello chaps

just a quick one:
I have a 2009 xt r with 750 miles on the clock,
I have only just recently noticed that when i start the bike up there is a rather loud vibration noise coming from somewhere in the engine (no idea where abouts).

It only happens when the bike is cold and being started for the first time,
e.g in the morning before work it will make the noise which will last approx 30 seconds. when i get to work and switch her off, i wait a few moments and try her again but she wont make the same noise.

Also it increases in loudness if i increase the throttle

Any ideas

thanks in advance

Andy

richardsracingmad · # 2 29-12-10, 21:56

its not a sump guard?

tarzan · # 3 30-12-10, 18:37

Hi,

nope, i havent fitted my guard yet ...

Andy

tarzan · # 4 31-12-10, 20:16

im guessing no one else has this problem?

ta

Lebox · # 5 02-01-11, 18:46

I've got a 2007 XTR and have noticed a similar noise like a buzzing sound.
It goes after about 20 or so seconds after starting from cold. This has only just started after the cold spell we have had. Not too worried and will see if it goes when the temperature rises

offroadtoad · # 6 02-01-11, 18:53

Some plastic bits can go a bit stiffer / brittle in this cold weather and transfer vibes that they might otherwise have dampened out � my Z was a little buzzy during the cold snap before Xmas, but now it's back in plus rather than minus temps all is well. Have to add that I was going a little brittle in the cold before Xmas too

Roll on the summer

oubaasbaard · # 7 28-05-11, 17:47

It is the oil pump I heard that it is normal, I didn't have that sound but I have read on another forum of it, then I changed my oil to Motul and now suddenly it is there. I think it just needs to build up pressure then it go's away.

Cheers

Kev · # 8 29-05-11, 00:48

I have had the problem before & found it was the one way valve in the clutch cover for the oil circuit, the valve was leaking over night & allowing the oil to drain back into the sump over night, first start from cold & the motor would rattle until the motor got oil pressure then the noise went away.

I did a full explanation with photo's of the problem on the forum a fews year back, I am going out now & will find it for you later.

englishbandit · # 9 23-02-16, 09:42

Hi lads
i bought a bike 3 weeks ago and engine sounded spot on, bike only done 4,900 miles 2011 xt660x bike was kept in a worm garage. anyway i have had a loud noise plastic/rattle when i start the bike up from cold. its last 20 seconds or so. its about 2 or 3c here so is cold and my bike is my garage, but is as cold as the outside temp.i have been trying to find out what the problem is for the last two weeks, i have asked kev and so on, even ordered a new clutch to put in this week as the noise was not right and loud. anyway after reading your problem with and you saying it was only happening when it was very cold (i did not think it would be that at all) i put my bike in the kitchen of my house so would be nice and worm when i start it the next day, just to see if it made any difference at all, thought i may as well try as it cost nothing to give it a go.started the bike this morning NO noise at all ? not jumping up and down yet but think it was the cold and that's it. going to leave bike in the kitchen for the next 2 days without starting it. if when i start it the noise has gone, then it was only the cold. very odd but at least its not a real problem. will let you all know if the noise has gone in two days time.

Kev · # 10 31-01-17, 21:01

2nd time I have ever heard of this.

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