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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
DRZ125 Engine knocks
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[QUOTE="mackmanj, post: 1410762, member: 102857"] My son recently purchased a 2007 Suzuki DRZ125 that smoked and had a knock in the engine. We tore it down and found a small piece of metal in the combustion chamber. I did a jug up overhaul with new piston kit and gaskets. When we got it running it still has the knock. It sounds like it is coming from the whole engine and is hard to narrow down and does vary with engine speed. I checked the rod for excessive play and it seemed to be ok. I have changed the oil 3 times to see if any trash comes out with it and it is good. He rode it the other day and a piece of the intake valve guide broke off and stuck the intake valve open. Ive had the top jug off 3 times and cant find anything. Does anybody have any ideas on what I need to look for. I hate to split the bottom end but I will if I need to. I am going to tear down this weekend to repair the head and hope to find it this time before I wear the bolt holes out. I have done several single cyl Hondas in my day and didnt think this Suzuki would be any harder than they are. Thanks in advance for any advice. [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
DRZ125 Engine knocks
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