rpm

On the rebuild a high compression gasket was installed and the valve clearances were set tight, .6 and .1, is this to get more out of the higher compression or do I need to correct this?

I am having a horrible fuel cut / AFR spike issue on gentle throttle off - throttle movements that I am in desperate need of help with. The bike is a 2017 model with the following mods: PCV rev xtend to 11,200 rev limit auto tune active on closed loop section (0%-60%, 0-7,500 rpm) - 13.5...

Hi guys! My rc [125, 2017, 2k miles odo], is doing something odd, around 7-8k+ rpm i can feel weird vibrations, its getting worst over time. I did velve adjustment, 3 velves ware off, nothing big but still, chain tensioner looks like its doing it's job, everything is seal, fresh oil, factory...

On the way to work today, I had a bit of an issue that has me running through possible culprits in my head: The bike was at about 5 bars on the temp gauge. Going down a hill in 4th. RPM was about 9K. I had the gas pinned, and the bike was still accelerating, then randomly it bounced off the rev...

Hi all, Created this account in hopes you guys could help me out. I have a 2017 RC390 and have just tried multiple times to change the shift light settings for RPM 1 and RPM 2. I follow the standard procedure in the manual and am able to change the RPM shift light settings up and down, however...

Hey Guys, Facing an issue on my week old 2017 RC 390. After about 200 kms on the odo the bike suddenly started feeling very rough below 4000 rpm. Initially was very smooth (relatively speaking) but all of sudden became very rough. A lot of vibes and jerkiness from the engine. Feels better post...

We got to play on the dyno and test various intake lengths. It seems there is plenty to gain for the bikes that run at high RPM! https://ibb.co/e211O7

I just got a shift light. It says it is simple to install. I must agree with one exception. where is the RPM Signal Lead instructuons are simple. Black Wire - check Whire wire - check RPM Signal Lead - who has a recommendations. see instructions RPM signal lead. You may use the tachometer...

Shift Light Installation Has anyone installed a Heal Technology Shift Light Pro? I am about to install a Rottweiler fairing stay, drop my instrument panel to a lower position, and mount a lap timer. This will put my shift light and tach below my peripheral vision so I am thinking about a shift...

I bought a rc390 used and the idle has been bumped way up. It idles at 3500 RPM when warmed up. When cold it varrys between 2 and 3K RPM. Does anyone know how to adjust it?

We're now stocking the fully loaded variant of Bazzaz's ZFi, the ZFi-TC at www.mnnthbx.com Unlike the competition, this is a complete, turn-key kit, and has proven to be the industry standard in both performance and value. Benefits Faster corner exit with controlled tire spin and improved...

Bike was having issues cutting out at 6500 rpm during my race Sunday. Would happen at 6500 but not every lap. Bike was also not idling worth a shit, while idling at ~1800 every other second it would have a hesitation and drop to ~1200 once the bike was warm it wouldn't stay running at normal...

How do you raise The rpm, were The shift light starts flashing?

Is it me or does the "Combination Instrument" display lack a digital indication of the RPM? First, I am new to my RC 390 and i am just finding some things out. However, I cannot figure out the way to display the RPM in a digital mode. Yes, I see the analog bar increase in length as the RPMs...

Hi, I got to test ride an RC390 the other day and wanted to provide some input. I put about 25 miles on it on a twisty road and some highway. I have been riding for 45 years and currently have a KTM 350 XCF-W and a 2009 FZ1. The bike feels very small, mostly due to the thin tank area and low...

I picked up my RC390 the other day near Atlanta, GA (see other thread) and since then I've put about 300 miles on her. Yesterday I decided to take it on the interstate for the first time. I'm happy to say that the US spec model has a higher top speed than all the other countries versions. I'm...

Just wanted to get RC 390 owners thoughts on how they find riding their bike in the slower rev range? Des your bike splutter allot when under a certain RPM ? Don't get me wrong I am not trying to pick fault as I enjoy riding my bike just find it takes allot of effort to ride the bike...