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'89 fj 1200. timing chain rattles and poor idle. where is the adjustment?

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  • Yamaha Master
  • 49,361 Answers

Hi, Mjcoop for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Cam Chain Adjuster XS11 com Forums
Cam Chain Adjustment
Yamaha FJ1200 1984 1993 Workshop Service Repair Manual Download Manuals... $10
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fj-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Jun 05, 2017

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Posted on Jan 02, 2017

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  • 8 Answers

SOURCE: cam chain rattle

have a real mechanic check the timing chain guides, you may even need a new one, sometimes they stretch.

Posted on Mar 20, 2009

  • 52 Answers

SOURCE: My valves are rattling. Is there a way to adjust the chain?

very simple fix! the valve lifters on that bike have adjustable tappets. but be sure to adjust them to factory specs!

Posted on Jun 11, 2009

polarcycle
  • 1392 Answers

SOURCE: poss loose timing/cam chain!

Cam chains are self adjusting. They have a tensioner that takes up slack as the guides wear and the chain stretches. You may be able to get away with new guides if your chain isn't too stretched. Look for pieces of plastic in the oil, which will signal work guides. It is possible you are hearing the valves rattle, and it would be time for a valve adjustment.

Posted on Jun 12, 2009

  • 7 Answers

SOURCE: FZR 1000,timeing chain rattle

check the cam chain tensioners.

Posted on Sep 14, 2009

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1 Answer

What is causing rattling grinding noise at idle especially in my 89 4.5 DeVille?


The technique I always used to identify where such a noise was coming from was to use a very long screwdriver (2 feet long), while the engine is running. CAREFULLY touch the screwdriver end to each pulley or other object under the hood, and put your ear to the handle. The device making the noise will become very clear.

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Cam chain rattle when engine is idling


This bike is well known for cam chain rattle, but it has an automatic tensioner so there are no adjustments. If the bike runs well just ride it. I have a friend that had his cam chain, tensioner and guides, and in less than a couple years it was making the same sounds. If the bike run rough then it is a possibility the chain has stretched and unless you are confident with timing issues take it to a pro.

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How to adjust idle on fj 1200


Hi, Anonymous the carburetor throttle shaft wheel has two cables the cable closest to the right side of the bike is the throttle cable and the one closest to the left side is the idle cable. Right about the middle between the two is the idle adjustment bolt it faces out towards the air filter end of the carb . The engine should be at operating temperature with the enrichener off to set the idle between 950-1050 rpm. Turn the idle adjustment bolt clockwise to increases idle speed and counterclockwise to decrease idle speed. If you have access to your air fuel mixture bolt you may adjust it as well if not there is a video below on how to gain access, make sure you start with clean or new spark plugs. Gently turn the air fuel mixture bolt clockwise until it starts to bottom out "STOP" do not over tighten as it will damage the taper on the end, now back it out 2 full turns to establish a starting point start the engine and check the idle rpm's and adjust the idle adjustment bolt accordingly for 950-1050 rpm if necessary, adjust the air fuel mixture bolt 1/4 turn at a time and let the engine settle for about 10 seconds, clockwise for a leaner mixture and counterclockwise for a richer mixture you are seeking the highest rpm your air fuel mixture bolt can acquire without going past 3 full turns from bottom then readjusting the idle adjustment bolt back down to 950-1050 rpm If you can not detect any rpm change and can not stall the engine by turning the air-fuel mixture bolt all the way in then your pilot/low-speed jet is too big. Final adjustment should be made with a clean air filter mounted to the carburetor. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fj-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Nov 16, 2012 | Yamaha Motorcycles

1 Answer

My zzr1200 is having a problem back firing and decrease in gas mileage along with poor cold idle. It seems like a timing problem. the bike has 75,000 miles. The valves have not been adjusted either.


Being electronic ignition, the timing should not be out.
It is more likely there is tight valve clearances, this will cause backfire and poor fuel economy and poor idle. also if it is not corrected it can burn valves and seats.
solution
full tune and service with valve adjustment.

Sep 09, 2010 | 2002 kawasaki ZZR 1200

1 Answer

I own a 2004 BMW R1200CL. Almost every time I crank the engine I can hear the valves rattle. I have checked and adjusted the valve clearances to spec. The rattle goes away after the engine starts, but...


Yep, most of these bikes do rattle on startup. The noise is from cam chain slack. A hydraulic tensioner is used in the engine on each side as there are two cam chains. The tensioner leaks down after the engine sits for a while and the chain rattles for a few seconds till the tensioner gets pumped back full of oil again. Once the chain is tight again, then no noise.

BMW came out with an improved tensioner (doesn't leak down as quickly) that you can install on your engine to fix the rattle. Note that it is much easier to change the RHS tensioner than the LHS one.

Good Luck!

Sep 03, 2010 | 2004 BMW R 1200 CL

1 Answer

Engine cuts out when selecting gears


Hi and welcome to FixYa,

Check, clean, bypass or replace the sidestand switch.

Good luck and thank you for asking FixYa.

Apr 16, 2010 | 1986 Yamaha FJ 1100

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1997 XL 1200 Custom has chain rattle from engine


better buy a clymer manual or bring it to a tech soon

Dec 30, 2009 | 2000 Harley Davidson XL 1200 C Sportster...

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1990 toyota pickup with 22re engine and 235000 miles failed smog in cali.,not because of emissions but because timing was at 30 degrees instead of 10. It starts and runs well. I have not adjusted timing ....


Reset the engine timing by first jumping pins E1 and Te1 in the grey box under the hood. If the truck runs poorly set to proper timing, your timing chain has jumped a tooth. Does it rattle bad at idle? Id so, the guides are worn out, and the chain is stretched.

Oct 17, 2009 | 1990 Toyota Pickup

1 Answer

Poss loose timing/cam chain!


Cam chains are self adjusting. They have a tensioner that takes up slack as the guides wear and the chain stretches. You may be able to get away with new guides if your chain isn't too stretched. Look for pieces of plastic in the oil, which will signal work guides. It is possible you are hearing the valves rattle, and it would be time for a valve adjustment.

Jun 12, 2009 | 1999 Yamaha YZF-R6

1 Answer

Cam chain rattle


have a real mechanic check the timing chain guides, you may even need a new one, sometimes they stretch.

Mar 20, 2009 | 2003 kawasaki KLX 400 R

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