My Suzuki was a DF 60 four stroke , 2007 new , within 3 years the head dissolved through and cracked , no warranty they said , thery said because I had it serviced 2 times out of 5 by a private guy that was the cause wrong anodes , just last week I sent an email to Haines group who own Suzuki in Australia , they said they never saw a warrantly claim on that motor ever , but they would investigate it , a few days ago after talking to all concerned they imformed me that they stand by there original rejection of saying no based on there investigation they said I never had the head anodes ever been changed in services , Suzuki did 3 out of 5 mind you , they also said in there opinion I never flushed the motor with fresh water , I live in a boat access area and the boat never leaves the water and I use it daily most times , I do flush it if it is being left for a week no used , the Suzuki mechanic when I asked him at the time what could I have done differant to stop this happening again , he said nothing he has had to repair quite a lot of this model , he suggested I sell it and buy a new motor , he also said that model has a car engine head with to many metal parts and loves corroding , but he also said it was off the record other wise he might lose his dealership , now if you read the first part of this story haines said they had never heard of my motor problem , no warranty claim, was ever brought to there attention , then they said they stand by there original decision to reject it , what more can I say other than my boat is the only Suzuki at the marina , all the others are Yamaha , never flushed , 4 anodes in the head , mine has 1 , and the Yamahas are 10 years old and still going strong .