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Showing results for tags 'diagnose'.
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After a fresh replate by millennium technologies (they had access to this new piston for sizing), a new wiseco piston with proper exhaust bridge holes drilled, new wrist pin and bearing, and new power valves, my 2001 rm125 has a rattling sound coming from the engine. This bike is seriously testing me. It hasn’t given back what I’ve put into it in the slightest. Someone please help me diagnose this noise. I have a video of it running in this YouTube link: https://youtube.com/shorts/sBJHr1Bg7iQ?feature=share
So I just did a bunch of seasonal stuff to my DRZ 400 (oil, filters, plug, carb rebuild, etc...) Bike ran fine before I started the maintenance. After I swapped the stock plug for the Iridium version the bike wouldn't stay idling so I swapped back to a new basic plug, same issue. Thought maybe all the maintenance caused something to clog the carb. Went ahead and rebuilt it. Same issue. Went on here for some diagnostic help. Saw a discussion that mentioned unplugging the 3 yellow wires to the stator. That worked, so what does that mean. What should I be doing next and what part may I need to replace? Any type of help here would be appreciated. Photos and step by step for dummies is a plus.
I bought my DRZ new in April and have since accumulated 1,000 miles and use it to commute to work (I live 5 city miles away). I was starting to remove the air filter to begin the 3x3 mod and the filter was sticky and smelt like gas. I did some digging around the forum and found out there could be two reasons for this. The petcock is leaky or I left my carb on Prime for some time and the gas flowed backwards. I'm pretty sure it's the second one as I remember one occasion where I left it on Prime for a few hours (my first carbureted anything). I currently have a cup under the petcock and will see if anything leaks out of it, but I am doubtful that is the problem. So I'm looking for some advice on what to do now. I've changed the oil twice already, so it's only been 500 miles or so since the last change, so any gas in the oil is since then. And the oil just faintly smells like gas. It took a few attempts to smell anything like gas. Should I just change the oil, call it good, not do the 3x3 rejet and use the warranty if needed? Or could this be something much bigger and I should go back to the dealer?