Question about 2003 Suzuki SV 650

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Suzuki sv650 crafshank problem...

Driving back to work, being proud of my black suzuki sv650 .... a cracklig noise from the engine made me stop ... lost power and more noise when opening the throttle.

after a three day agony with my mechanic we had to open all the engine, upper and lower..

the metals of the bearing of one of the pistons , at the point it joins with the crank were skewed and out of place creating damage to the crank....
result i need new crankshaft accompanied with a number of bolts and gaskets to close up the engine..

question1 .. what the heck caused the problem? (my mechanic says it is not possible for a suzuki to have such a problem)
question 2 what do we need to know while and after assembling the engine?
question 3 will the engine need some tuning ??

question 3

Posted by on

  • panayiotisth Jun 25, 2009

    Thanks for the swift response... we did have a low level of oil when opened the engine but thought it was not the reason but the result....

    anyway .. a manual is already printed and at our service.. the problem now is finding parts and getting them to Cyprus without a big cost... (difficult..)

    thank you again..


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I agree with your mechanic. The likelihood is that the oil in the gearbox got too low and starved the crank bearings of oil. It could also have been a defect at the factory that has gotten worse and worse and finely is showing as a major problem. I suggest you get a service manual for this project. A manual becomes instantly priceless when you realize that without it you would have done something wrong or not done something you should have. Install new crank bearings and seals and output shaft bearing and seal at the sprocket. Flush all metal bits from the engine and oil pump. New oil filter is needed. Follow the manual and all should be good. Buy your mechanic a six pack.

A “very helpful” rating for this answer? Thanks!

Posted on Jun 25, 2009

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