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Rattling sound
Hi,i have problem with rattling sound on my 2005 xtx.Sound become louder when i speed up in 5th gear from 110km/h to 150-160km/h.Also i notice,that engine has lack of power and slow acceleration.I check valve clearence and its ok.
Does anyone know what would be a problem or what shoud i look at firs?Thx |
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It rattle in all gears,special in 5th.Its sound like someone is hammering the engine.
I have drive friends 05 and 08 xtx and they didnt make that sounds,also i dont get it why i cant pass 160km/h and reaching that speed is very hard,even down hill. |
I would be taking your bike to a mechanic before something big happens, OK I see you are a mechanic, you should have the skills to diagnose the knock?
I would not ride the bike if the motor had a knock you could be causing further damage. |
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There is one more thing,when i check valve clearence i notice that right exhaust and right intake valves were on low side of factory specification(intake 0.09mm and exhaust 0.16mm) and left exhaust and left intake valves were on high side of specification or even more,but i didnt bother to reset valves cause were not so much out of specification(intake 0.15mm and exhaust 0.20mm).Is it possible that cam bearing is damaged.
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Rattling sound
The cam has a ball bearing on each end if they were damaged you would hear a roar from the cyl head. you should try to keep the valve clerance's as close as possable whether you run them loose or tight (both ex the same & both inlet the same) check the valve and ign timing & A/F ratio (fuel map). failing that i would pull the head off and check in side for damage before it goes BANG! it will cost you lots then.
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Could it be camshaft (timing) chain tensioner? Cam chain too loose and making rattling sound.
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