Question about 2008 Yamaha YZF-R1

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I bought this bike from auction , charged the bat and when started it i found out the bikes engine light is one and it has a loud knock , is this going to cost heaps to fix?

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  • toneman2121
    toneman2121 May 28, 2010

    you bought a bike without starting it? sounds like you got some bearing problems

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The loud knock can be a broken piston (overrev) or a spun rod bearing. unless you do this kind of work all the time ordinary teardown and cleaning techniquies are going to slow you down badly. Time is money in repair work a full motorteardown to get to the loud knock and parts aren't cheap and used complete engines can be found on E-Bay motors but they'll be interesting to see if their not stolen or damaged in some way and can you get anything back if their bad? Some are motorcyle salvage yards but they want their sales to be finished. Buy still another bike that has a good motor but is crashed in some way and conbine the two bikes. Part out the rest of the leftovers and resell them on e-Bay or craigs list. And if your lucky you'll come out alright.

Posted on Jul 05, 2010

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Most likely heaps of cost is what you're looking at.

Posted on Jul 04, 2010

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  • Yamaha Master
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If it is an engine bearing knock, it may be cheaper to look for another engine, but your not going to know until it is stripped and the cause of the knock is identified

Posted on May 28, 2010

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As the battery & regulator/rectifier have been replaced, the only other things to check are :-
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Ride safe
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Please mark this as very helpful (if it has been!!)

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