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Engine started making so clatter noise last night

  • Thread starter Thread starter tfamilyx5
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tfamilyx5

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I have a suzuki gs 650g over the winter I rebuilt the carbs checked the valves and the bike was running very smooth last night got on the highway and was doing about 75 nothing major and I started to here some engine noise clattering it runs & idles great still and It did get me home however there is definatly some terminal sounding engine noise. you don't hear it when it is at idle only when you give it some gas. Does anyone have any advice where I should start to sort this out? Does it sound like I am better off just doing an engine swap?
 
Starter clutch as Bill said, and the cam chain tensioner..it may have gotten stuck and if so it will clatter like a bad rod noise.
 
tfamilyx5 said:
I have a suzuki gs 650g over the winter I rebuilt the carbs checked the valves ..... Does anyone have any advice where I should start to sort this out? Does it sound like I am better off just doing an engine swap?
Click to expand...
Did you change any shims (probably yes) ? after checking and altering any shims , did you rotate the engine a few times to make sure they are` all seated in buckets nicely?? Is this bike new to you? mileage?
 
I did not replace any shims they were all in spec I have tried to isolate where the sound is coming from and it does seem to be coming from top end I took of the stator to see if anything have come lose there it was in good shape. I will check the clutch to see if anything has come lose there. It has an auto cam tensioner how does that adjust? another thing to not if in neutral and I rev the motor up to 5 thousand RPM the noise goes away completely however if I ride it down the street can here the noise. could it be as simple as bad gas?

I have had the bike since Oct it only has about 16,000 miles and is very well taken care of almost brand new and has been running very smooth up until that momment all of a sudden
 
POOR MANS STETHESCOPE...Take a file with a plastic or wooden handle on it and place the handle to your ear. Place the file against the engine in variuos places to actually hear whats clattering. Yes you can actually hear the pistons moving in the jugs, the clutch rolling, etc etc.
 
Greetings and Salutations!!

Greetings and Salutations!!

Hi Mr. tfamilyx5,

These are not quiet engines, at least they're not supposed to be. But if it's a new noise then check all the "usual suspects" as has been mentioned.

Check it! The "mega-wecome" is in the house! :)

If you are here you probably have a 30 year old motorcycle that needs about 20 years worth of maintenance. You'll find all kinds of helpful tips, procedures, manuals, diagrams, "how-to" guides, etc, in the links below. Let's get started.

Let me dump a TON of information on you and share some GS lovin'. :D

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Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", "Top 15 Tips For GS Happiness", the Carb Cleanup Series, and the Stator Papers. All of these tasks must be addressed in order to have a safe, reliable machine. This is what NOT to do: Top 10 Newbie Mistakes. Now let me roll out the welcome mat for you...

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Please Click Here For Your Mega-Welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike! :D

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Last edited:
thanks guys for all your help and that terrific welcome

I think that my next step is to check the cam tensioner so I will do that
 
tfamilyx5 said:
thanks guys for all your help and that terrific welcome

I think that my next step is to check the cam tensioner so I will do that
Click to expand...
Good thinking ,but you won't like removing it on the 650 to test it and it's hard to determine if it's stuck without removing it. You can remove camcover and inspect for chain slop, but this might be inconclusive.
 
I actually had the same problem on my 1100 this weekend. Turned out to be the cam chain tensioner was stuck. Removed it lubed it up and its working perfect for now with turning the engine over, chain nice and tight. Only thing now is I lost a cam end plug so waiting on parts lol.
 
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