Question about 2003 Yamaha BT 1100 Bulldog

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CAMCHAIN NOISE 8500KM, THE CLICKING NOISE COMES ONLY AT IDLE 1000RPM AND WITH ENGINE HOT. CHAIN TENSIONER CHECKED AND OK. ANY HINTS??

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  • dovas nick Feb 01, 2009

    valves adjusted and the problem persists

  • dovas nick Feb 01, 2009

    areon?? what is this??

  • dovas nick Feb 02, 2009

    8500 km or 4500 miles

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Need tohave your valves ajusted. intake valves should be about 5-thousnds, and exhasut should be about 7-thousands. be in all, the slite tap you are hearing will not hurt anything. Sometimes times a little lose is good to keep from bending a valve.

Posted on Jan 31, 2009

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  • spankie09 Feb 01, 2009

    how many areon this bike????

  • spankie09 Feb 01, 2009

    Type O, How many miles are on the motorcycle motor??

  • spankie09 Feb 02, 2009

    It still sound like to valves, or the time chain tensioner. usless you have a loose wrist pin on one of you pistons. It hard to put my hand on it thru and E-mail. This low of miles, you might need to check to see it. This bike has any recall or ask your local Bike shop if they have had any problems with this model bike?????

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1 Answer

Can the tensioner make the chain to be loose inside the engine an cause it to make noise an show sign of oil on the dashboard?


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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.

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Take a dry bar of soap and touch it against the sides of the belt(s) while the engine is running. If the noise goes away for a little while, the noise is from the belt settling into the grove of the pulley. Belts can really make loud pooping noises.

If this has no effect, then your timing chain may be too loose for the timing chain tensioner to compensate, and the chain is slapping against the inside of the timing chain cover.

If this is the case, do not let this condition go on. The timing chain cover is aluminum, and the chain is high grade steel. The chain will wear a hole in the cover if it is hitting the inside of it, and that is allowed to continue.

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1 Answer

How does the timing chain adjuster work? My motor is a little noisy and I was looking to tighten my timing chain. The manual doesnt tell me how to just adjust it. It tells me how to assemble it (not very...


Well I guess the type and model of motorcycle would help.

However, most camchain tensioners are basically automatic. They bear against a long, curved nylon dampener that rides the slack (trailing) side of the chain. This pressure is made by a spring inside the chain tensioner housing itself and is not a serviceable part.

If housing is bolted up tight, all available tension is employed. If chain is still slack...camchain is worn out must be replaced.

Camshaft and rocker arm gaps maybe providing all the noise also, maybe time for a top end service, whatever the bike!!
Cheers.

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1 Answer

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http://www.yamahaownershandbook.com.au/index.php

Need the Manual: Down load from the link above, enter model, make year and download for free. (It's in four languages however) The relevent detail is in chapter 4-8 to 4-13. I think, Cheers.

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1 Answer

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