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I am running bel ray moto chill...... But I had an epic breakthrough or well at least a road to pursue....When I was loading the bike the night before the track it had a dead battery. I did not think a think of it but maybe, just maybe the PCV reverted to original specs or checked out of the...

I am going to safely say no to clogged water jacket I am contemplating completely removing the thermostat at this point. I don't ride this bike in the cold. coolant was up possible....I can check it Map was given to me with the PCV so unless the auto tune is going crazy I don't think so Yes...

It is 50/50 track. Actually probably more track then street. It did sit for about 4 months since my last outing on it (it is not my only bike). YES, as I mentioned it always ran close to hot but this is the first time it has ever gotten to the H zone and triggered the "high temp" warning. It...

Went to the track last sunday and got the "high temp" warning on the dash at speed. My 2017 RC's temp gauge has always (from new) sat just below "High" which I never liked. It likes to run and will drop a bar while in motion. So this last Sunday at the track it goes up a bar instead of down...

I heard (not felt) a vibration on my 2017 RC390. It ended up being the right fairing panel broke a plastic locating pin and would make a terrible noise at anything above idle. I would keep looking for anything loos. Sprokets, chain tension, check tires etc

the facts: 2017 rc390 with 2700 miles on it. First service and valves done at the dealer at 600 miles. Motul 15-50 full synthetic. The bike is used for local mountains, Kart tracks and Horse theif mile here in southern california. I did an oil change today and the oil looked fine but the...

Yes, sits on top of the head and I think on each side of the engine zip-tied to the frame (if it is not all one piece). I have worked on a ton of bikes and never come across this before and wonder why they would spend the money to engineer it and the cost of production for it if it did not do...

Working on my 17' RC390 and there is rubber sheeting zip tied all over. Is this important? Does it keep wires off the hot engine? Is it cooling engineering? Have you all removed it with no effect? Any info appreciated!

I have read lots on here and else where but don't post much (first post here I thinik?). I bought a 17' in Dec of that year. I knew I wanted to do the suspension but did not want to mess with the engine as what kind of money would I throw at an engine to get, what, 4 HP on a engine making...

I have read through this thread and have a PCV and WB2 on the way from Hard Racing. Looking forward to the install and coming here for any questions!

I also just found my kickstand wobbly. (2017MY) I get that they, as well as any bolts can come loose on any bike but I JUST got this back from the dealer that supposedly did the break in service and checked all the bolts for tightness. Obviously not these! Is anyone putting blue locktight on...

Looking for a passenger seat for a project on a 2017 RC390. cost matters as they are not expensive on ebay (at least for a 15', I actually don't know if 15 will fit 17'), obviously shipping to so cal would be on me. Thanks, Turin Pasadena CA

Just bought my RC390 a day ago and then found this forum. I am interested in "the deal" I will PM you. Hope it works as I only have 1 post (2 now). Turin

I am new here so this seemed like the first place to post. Although new here I am no stranger to motorcycles. I have several choices in my garage to ride but am focused right now on the RC390. I purchased a 17' Saturday evening and rode 220 miles yesterday to scrub tires (done!) and start the...