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clinking sound in engine xt600e 2001 clinking sound in engine xt600e 2001
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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by George Guille, It's going to be a long 300km... Bolivian Amazon

I haven't been everywhere...
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It's going to be a long 300km...
Bolivian Amazon



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  #1  
Old 31 Jul 2009
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clinking sound in engine xt600e 2001
Im pretty sure i can hear some kind of clinking sound in the engine/cylinder, is this "dangerous"? what could it be? If i record the sound will you guys be able to recognize it you think?
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  #2  
Old 1 Aug 2009
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Try us =)

Is it both with cold and warm motor?

It might just be the valves that needs to be adjustet
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Old 17 Jan 2010
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Quote:
Originally Posted by Jens Eskildsen View Post
Try us =)

Is it both with cold and warm motor?

It might just be the valves that needs to be adjustet
A very late reply here but I just uploaded the video I took this summer onto youtube. The video is upside down but hope you can hear something..

YouTube - xt 600 E 2001 strange engine sound?

btw. i think it gets better when its warmed up..but the engine feels very "plush", I hope its just the valves.
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Old 17 Jan 2010
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I've heard that when the later models (4PT) were made the tools that made them in the factory were'nt as sharp due to having made a bazillion of these engines in there lifetime and as such the tolerances arent as fine. I asked a Yamaha dealer about this and he confirmed it. It doesnt, however, mean anything bad, so I've been told. Mine makes a strange sound when cold, but when it gets warmed up it goes away.
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Old 17 Jan 2010
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Maybe it's cam chain? Here is how my cam chain sound like when it was ready for replacing.

YouTube - XT600E valve sound
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  #6  
Old 17 Jan 2010
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It does sound very much like your valves need adjusting , Its not very expensive to have done or you can even do it yourself , Better still take it to your local bike shop and let him have a listen.
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Old 17 Jan 2010
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My 2003 XT600E made the same sound at idle with 4000 miles and in PERFECT balance and spec !!

These engines are OLD design and arnt quiet..

By all means, check your valves... You should be anyway !!

It sounds very healthy when you rev it..
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Old 19 Jan 2010
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What sort of mileage has the bike covered?
Do you know any of the bikes history? (thrashed/ 1 old nun owner)?
Maybe a bit of piston slap?

Andy
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Old 19 Jan 2010
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valves! check gap :P

also... my camshaft chain gave up with only 30 000 km on the clock... I know.. i push too hard too often...

anyway... check the chain and the timing if you can!


Vando
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Old 3 Apr 2011
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Old thread but I took a new video today, not sure you can hear anything, starts easy runs good but the throttle response is slow. If you could look at the rpm needle and see if its normal? The part where i film the rpm needle i give 100% gas at that moment and it revs kinda slow?

YouTube - xt600 E 2001 strange engine sound? #2
Sorry for bothering with this topic over and over hehe, i just want to be sure shes fine
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  #11  
Old 4 Apr 2011
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Sounds like your mixture may be a bit rich. (burbling rich)

Check float level and if that's fine try the air pilot screw. (tighten to close counting the exact amount of turns in so you can always return it back to your starting point. Return to your starting point and perform the following) Turn in 1/16th at a time until the revs start to climb. when the revs start to drop turn back out till max revs reached and then a further 1/8th turn out (safer to be slightly rich).
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Old 5 Apr 2011
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Idle is a bit low, I just think the bike isnt fully warm, that will cause the enginestall, and making it a bit harder for the engine to rev. I really wouldn't bother with carbwork if you dont experience surging or other stuff.

But come on, its been 2 years, if it bothers you that much, either strip it apart and rebuild, or ride and see if it grenades on you.

It doesnt sound too bad to me, but its hard to hear on video.

Theres a big nut, I think its hehind the clutch, I've heard a couple of stories where the nut got loose, and the bike starting making noice. Might be a seasy check, only cost you a gasket to check it. And a clutch-holder-tool to removed the clutch if you need to tighten the bolt.

Is there enough oil on? If you run it low it will start to make more noise. Check the valves also, the make clicking sounds when loose aswell.

Hope you get it sortet


Heres my bike idling/reving at 75.000km:

YouTube - Yamaha xt600e 2003, with 75.000km

Ive done over 10.000km since with no problem.
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  #13  
Old 12 Apr 2011
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Mine was ticking from the top end very loud when cold, the bike shop had put 10w 40 oil in it so put in 20w50 now nice and quiet gears no longer clunk and it rins so much smoother no surging at 3-4000 rpm.
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Old 13 Apr 2011
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the bike is fine!

You just need to set the idle RPM's a bit higher to at least 1300/1400 as this will cause the bike to REV a lot slower!

I've read this before but I can't remember where..
It has something to do with the inertia of the engine which causes "underpressure" to suck in fuel in.


Also, check your sparkplug gap be sure to make it from 0.6 to 0.9mm I got 0.7mm on mine and the sparkplug color changed from way overrich to slightly better color(the black sooth pratically dissapeared).


Vando
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  #15  
Old 14 Apr 2011
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Is the air pilot screw accessible from outside the carb or do i have to take it off?


Quote:
Originally Posted by bruken View Post
Sounds like your mixture may be a bit rich. (burbling rich)

Check float level and if that's fine try the air pilot screw. (tighten to close counting the exact amount of turns in so you can always return it back to your starting point. Return to your starting point and perform the following) Turn in 1/16th at a time until the revs start to climb. when the revs start to drop turn back out till max revs reached and then a further 1/8th turn out (safer to be slightly rich).
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