r/Ninja400

Hey guys! I have noticed recently when I start my 2020 ninja 400 the RPMs go much higher than it used to and then after about 3 seconds will go back down to its idle RPMs. It also sometimes takes a little long than usual to turn over (maybe only like 3-5 seconds longer than usual). Any ideas what this could be? No lights in the dash and has ran perfectly since I bought it a while back with only 8800 miles on it right now.

For reference, it didn’t used to do this and my friend has the same bike and it does not do this.

I bought my ninja 500 SE last year in August for $6700 and now I am leaving my state and going to North, of all the shipping quotes I have been receiving $800 has been the average price to ship the motorcycle.
My motorcycle has run on almost 1500 miles and if I sell it, I will get somewhere around $5500-$5800. Right now. I have not done any modification so I have not added any money into it.

Would it be good for me to sell it and buy? Maybe upgraded later or buy a new one when I moved to north, which is Michigan state or should I ship it and absorb that $800.

Hey y’all!

Does anybody happen to have straight OEM rims for sale or know of a good place to find them? I’ve found a couple listings on eBay but most are bent 😭. I need a spare set for racing and dear god is buying them new overpriced.

I've been thinking about stretching my 400 for a little now not a big stretch just like 4 inches mainly for looks but I've been noticing everything has said it might decrease power or top speed so I was wondering where I might get an extended swing arm, what some problems might be, and how to get around those problems if possible

Thank you in advance

Edit: I guess what I want isn't actually an extra 4 inches but I would like the center of the back tire to align with the end of the bike I feel it just gives a more flush looked in my opinion any help here would be great thank you

I'm looking to get my first bike. I've been on some dirt bikes before and I've noticed how the front lifts very easily. Im wondering with a ninja 400 or cbr 500, would the front lift at all if I full throttle it? Thank you!

What do you guys think of this trade? Fair or not?

2021 Ninja 400 no ABS, 3k miles, non-oem fairings dropped twice (no frame damage).

for 2025 Daytona 660 with ~9k miles. Some scratches on side fairings but nothing major. With $1.5k on top.

I am shopping around in SoCal, 400 with abs goes above 5k. The cheapest one I can find is 4800 for a 2020 one for 8k mi.
Then I did a research online and apparently that is still too high. So I was wondering how much is considered a good deal for ninja 400? As a beginner I know absolutely nothing about bike markets. So it is quite hard for me to argue price on fb

I’m trying to get my first motorcycle, I’ve talked with a seller and gotten to 4800 for a Ninja 400 ABS with 250 miles. I’m wondering what others experiences and opinions are on the price.

2023 Ninza z400 ABS

Trying to install dash cam but nothing is labeled as ACC and not going to run it through the ignition fuse. Been searching for a while and nothing is coming up.

Anyone know where it is?