Loud rattle (almost a knock) from the engine at all engine speeds. Quieter at idle, louder on light throttle openings, almost disappears under larger throttle openings.
I'm guessing its timing chain related. Also noticed an oil leak but the bike won't have lost much more than 250ml.
Roughly 65k miles. Thoughts?
20-05-24, 08:39 AM
(This post was last modified: 20-05-24, 08:45 AM by Lemongrab.)
Definitely more of a knock or clatter than a rattle.
Sounds like its coming from the front sprocket cover.
When you touch that area, you can feel the knock.
Does it in drive and when stationary.
What is your idle speed set to?
Another ex-Fazer rider that is a foccer again
(20-05-24, 08:39 AM)Lemongrab link Wrote: Definitely more of a knock or clatter than a rattle.
Sounds like its coming from the front sprocket cover.
When you touch that area, you can feel the knock.
Does it in drive and when stationary.
Check the front sprocket nut 
Later
(20-05-24, 08:47 AM)BBROWN1664 link Wrote: What is your idle speed set to? Idle speed set to 1500rpm. Once the engine is hot it tends to idle at around 1800rpm
(20-05-24, 08:54 AM)Gnasher link Wrote: [quote author=Lemongrab link=topic=28008.msg333809#msg333809 date=1716190756]
Definitely more of a knock or clatter than a rattle.
Sounds like its coming from the front sprocket cover.
When you touch that area, you can feel the knock.
Does it in drive and when stationary.
Check the front sprocket nut
[/quote]
Did cross my mind, I'll take a look.
(20-05-24, 05:08 PM)Lemongrab link Wrote: [quote author=BBROWN1664 link=topic=28008.msg333810#msg333810 date=1716191267]
What is your idle speed set to? Idle speed set to 1500rpm. Once the engine is hot it tends to idle at around 1800rpm
[/quote]
idle speed once warm shoulf be about 1250
Another ex-Fazer rider that is a foccer again
(20-05-24, 08:39 AM)Lemongrab link Wrote: Definitely more of a knock or clatter than a rattle.
Sounds like its coming from the front sprocket cover.
When you touch that area, you can feel the knock.
Does it in drive and when stationary.
I was gonna say check the sprocket, sprocket nut and chain, for wear. May even just be the rear wheel alignment out too?
But when you mention "stationary" do you mean completely still, or with the bike on the centre stand, bike in gear and the rear wheel moving?
More people are born because of alcohol than will ever die from it.
(20-05-24, 08:38 PM)BBROWN1664 link Wrote: [quote author=Lemongrab link=topic=28008.msg333812#msg333812 date=1716221302]
[quote author=BBROWN1664 link=topic=28008.msg333810#msg333810 date=1716191267]
What is your idle speed set to? Idle speed set to 1500rpm. Once the engine is hot it tends to idle at around 1800rpm
[/quote]
idle speed once warm shoulf be about 1250
[/quote]
What are the consequences of this to a carb'd engine? Running rich?
(21-05-24, 06:09 AM)darrsi link Wrote: [quote author=Lemongrab link=topic=28008.msg333809#msg333809 date=1716190756]
Definitely more of a knock or clatter than a rattle.
Sounds like its coming from the front sprocket cover.
When you touch that area, you can feel the knock.
Does it in drive and when stationary.
I was gonna say check the sprocket, sprocket nut and chain, for wear. May even just be the rear wheel alignment out too?
But when you mention "stationary" do you mean completely still, or with the bike on the centre stand, bike in gear and the rear wheel moving?
[/quote]
Stationary as in bike not moving, bike in neutral.
(21-05-24, 06:34 PM)Lemongrab link Wrote: [quote author=BBROWN1664 link=topic=28008.msg333816#msg333816 date=1716233935]
[quote author=Lemongrab link=topic=28008.msg333812#msg333812 date=1716221302]
[quote author=BBROWN1664 link=topic=28008.msg333810#msg333810 date=1716191267]
What is your idle speed set to? Idle speed set to 1500rpm. Once the engine is hot it tends to idle at around 1800rpm
[/quote]
idle speed once warm shoulf be about 1250
[/quote]
What are the consequences of this to a carb'd engine? Running rich?
[/quote]
These particular bikes do run rich as standard anyway.
How long have you had the bike? (whatever it is, you need to put the year and model under your name to give us more info)
And do you know the history of the bike, in this example when was the air filter last changed? Changing to a K&N air filter can balance the fuel mixture a bit better by helping the engine breathe more.
More people are born because of alcohol than will ever die from it.
(21-05-24, 06:34 PM)Lemongrab link Wrote: [quote author=darrsi link=topic=28008.msg333817#msg333817 date=1716268179]
[quote author=Lemongrab link=topic=28008.msg333809#msg333809 date=1716190756]
Definitely more of a knock or clatter than a rattle.
Sounds like its coming from the front sprocket cover.
When you touch that area, you can feel the knock.
Does it in drive and when stationary.
I was gonna say check the sprocket, sprocket nut and chain, for wear. May even just be the rear wheel alignment out too?
But when you mention "stationary" do you mean completely still, or with the bike on the centre stand, bike in gear and the rear wheel moving?
[/quote]
Stationary as in bike not moving, bike in neutral.
[/quote]
If it does it in stationary mode then your best bet is to video the sound and let us hear it, for a quicker solution.
More people are born because of alcohol than will ever die from it.
I've px'd it for a Z750.
It was a fantastic bike for 3 years and 6000 miles and happily spent a lot of time at 12,000 rpm.
SA02 L** you will be missed.
(23-05-24, 04:34 PM)Lemongrab link Wrote: I've px'd it for a Z750.
It was a fantastic bike for 3 years and 6000 miles and happily spent a lot of time at 12,000 rpm.
SA02 L** you will be missed.
A video could've been a lot less bother :rollin
More people are born because of alcohol than will ever die from it.
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