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Check the basics fuel filter, spark, coils, injector, hoses, air filter, interior of the fly wheel and test stator, try disconnecting and reconnecting battery.. possibly dig in to that upper head and check valves and clearances, chain and tensioner, check overall health of your battery as...

Think worse case scenario would be a clogged up port restricting flow of oil, or maybe oil channels on transmission shaft gears and collar bushings slightly pitted out.. absolute worse case pitted out primary head block journals for camshafts as well as camholder head.. very unlikely your oil...

With out a doubt this bike isn't for the faint of heart when it comes to the 400 class.. it runs hot 🔥 and finds it self right at home blasting through country road twists and turns however in the city on a hot summers day in stop and go traffic she wont be happy!!! I'd recommend to anyone even...

I'm very curious myself to see what that software update even entailed... the previous owner had it done on his first 1000km service.. as seen on the paper work.. he also denied the valve clearance check lol I'm assuming he would've had to pay out of pocket for it.. more or less it's to also...

Have been an owner of this 2017 RC 390 for 3 years now.. 50 percent track and 50 percent street.. rebuilt the bike from the ground up twice.. factory oem.. gotta stay on top of oil changes (motorex 15w 50) and grab a box of filters like there going out of style lol the oil is expensive so if you...

The two nuts should be on the right side.. if for whatever reason they had to nut it up either side chances are your clutch cable is stretched and worn and should be replaced.

Takes me 5 too 6 hours tops to swap out a head gasket depending top or bottom block of cylinder.. for $3000 you could have purchased damn near every tool in the repair manual plus both gaskets 😳

Thanks for the advice man I currently am experiencing a slight loss in coolant and slight gain in oil level on my 2017 RC 390.. I have torn down the bike already once before to swap engine air filter, fuel filter, spark plug, clean 02 sensor, replace clutch disc plates, and water pump seals.. I...

Hi Guys and Girls, I'm new too this forum and I track a 2017 ktm RC 390 and I found this video to be quite helpful and informative with your scheduled do it yourself maintance.. be mindful to also check all your hoses and especially if your throttle body is seated well into your intake manifold..