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We ended up doing a leak down test on the bike and the pressure was getting by the rings. I ended up having to do the top end rings and piston. It appears that the previous owner may not have winter stored the bike properly and the ring was stuck on the piston. Looks like a little carbon or...

I just had my KTM 390 RC in for service work. They were diagnosing for no start when hot. I just did valve shims myself and set everything back into spec. The bike would run fine cold but would maybe start once out of 8 times when hot. I couldn't figure out the hot start so KTM diagnosed it...

I just had my bike in for a ring and piston at a KTM dealer. They took it out for a test ride and this exact same thing happened to them on the test ride. Supposedly, did some major damage. The bike now needs a new cylinder head and cam bridge. Who knows what else is damaged. I am glad...

Hello Fellow RC'ers, I am fighting with a 2016 KTM 390 RC. Just did all the required maintenance for the 15000 km's on out bike. Set the valves as they were all quite tight. All are set now to within the spec range and tried to be on the bottom end of the tolerance. One exhaust is in the top...

I am having a similar issue with a hard hot start. The bike starts fine cold no issue. Get the bike up to temperature it won't start. We just set the valves with new shims as the old ones were all tight.I replaced air, fuel filters, spark plug and cleaned the throttle body and injector. The...

The detail in this post is awesome. Thanks for taking time to post this. I found it useful when adjusting the valves on my son 2016 KTM 390 RC. ;);):)

Did you ever figure out your issue. I am in Kamloops, B.C. and having issues with our 390 RC. It stalls like yours did at the start and is though to start after. Wondered if mapping it was the trick?

Hello, new to the Forum from Canada. Kamloops B.C. Working on my son's 2016 KTM 390 RC and looking for help and support repairing and maintaining this little ripper. Todd

Hello, new to the group and my son and I have a 2016 KTM 390 RC. We recently did the valve adjustment for the 16000 Km's (Canadian Model) I am having the stalling issues when gearing down as well and hard start once the bike is warm. All the valves needed some adjustment ( all tight) so we...

Hello, new to the forum and I picked up a 2015 KTM RC for my son. He is just getting his learner at 16 so we will see if this little ripper is too much to handle. Located in Kamloops, B.C. Joined here to learn about setting the valve shims and regular maintenance and issues with these one...