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hello, I'm pretty much a newb when it comes to anything that's technical or mechanical, I ride a 2013 ninja 636 with 7980 KM on it as of this post. Now I don't know if this is a common or not but I when I take a look at my brake fluid reservoir, both front & back, I noticed the fluid color is slightly yellow or orange. With the amount of mileage right now, is it time to have it flush or I can still ride it?

As for the coolant fluid, there's nothing wrong, I was just wondering if I should have it flush out as well. During last year's summer, as I'm riding I noticed the fluids was low, so I drop by a bike shop and have the guy top it up (there still some left, it's just low). Is this method safe?

Any tips/advise would be greatly appreciated, thanks in advance.
 

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I think most people overdo it with their coolant and brake fluid flushes. U could ride for years with that shit in there as long as it aint leaking out like crazy. I havent touched my brake fluid ever since I got my bike. I dont even know wtf is in there...it is brake fluid tho. Its still working fine so I choose not to fuck with it lol.
 

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Typically, you can get away with doing either of those for flushes for 2 years. I would worry more about what the bike is doing than what the fluid looks like. Starts running hot or coolant reservoir looks low? Change fluid. Brakes start getting spongy, change brake fluid.

I ride agresive and track and with just topping off coolant, do both flushes every 2 years.
 

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Actually brake fluid goes off in as little as 30 days.
Most brake fluid is yellowish from new.
Personally i flush my brake fluid around every 2000kms.
But that said as long as there is enough fluid in the reservoir and your brakes dont feel spongy you should be ok.
 

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Typically, you can get away with doing either of those for flushes for 2 years. I would worry more about what the bike is doing than what the fluid looks like. Starts running hot or coolant reservoir looks low? Change fluid. Brakes start getting spongy, change brake fluid.

I ride agresive and track and with just topping off coolant, do both flushes every 2 years.
hey I noticed you mentioned "2 years", can you be a little bit more specific as in how many KMs are you talking about? 2 years is not really specific.

And about the coolant, if my bike STARTS temperature is fine but the fluid is low, can't I just add some more coolant fluid to the recommendation level without having to change it? By adding more cost me less than to have the whole thing flush and replace.

thanks
 

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hey I noticed you mentioned "2 years", can you be a little bit more specific as in how many KMs are you talking about? 2 years is not really specific.

And about the coolant, if my bike STARTS temperature is fine but the fluid is low, can't I just add some more coolant fluid to the recommendation level without having to change it? By adding more cost me less than to have the whole thing flush and replace.

thanks
The service manual (located in the forums--> service manuals section) has a schedule.

Personally (I am not an expert) I flush brake fluid every 3-6 months, and coolant 2x a year. Once in the spring to switch to distilled water/water wetter and once in the fall to switch to antifreeze.

Honestly both flushes are cheap and easy, so I have a hard time coming up with an argument for not doing them.

Ey3
 
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I do a brake fluid flush every season and also bleed my brakes before every track day. Easiest way to do it is with the help of a MityVac or similar vacuum tool. I highly recommend you buy one and learn how to use it.

As far as a coolant flush, not a difficult job, but takes some time and is a multistep process. I flush my coolant system every other season, first with a 50/50 mixture of distilled white vinegar and distilled water and then with just distilled water until what comes out is clean and clear. I always refill with Engine Ice.
 

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hello, I'm pretty much a newb when it comes to anything that's technical or mechanical, I ride a 2013 ninja 636 with 7980 KM on it as of this post. Now I don't know if this is a common or not but I when I take a look at my brake fluid reservoir, both front & back, I noticed the fluid color is slightly yellow or orange. With the amount of mileage right now, is it time to have it flush or I can still ride it?

As for the coolant fluid, there's nothing wrong, I was just wondering if I should have it flush out as well. During last year's summer, as I'm riding I noticed the fluids was low, so I drop by a bike shop and have the guy top it up (there still some left, it's just low). Is this method safe?

Any tips/advise would be greatly appreciated, thanks in advance.
Just depends what you want to follow. Most car people can get away with not doing a full coolant flush or bleed brakes for 5 or more years (often 60,000 miles/100,000kms).

If you follow the recommendations by Kawasaki, you should change the coolant every 3 years or 36,000kms/22,500mi.

Brake fluids should be changed every 2 years or 24,000km/15,200mi
 
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Also, if your coolant is low, then yes, it is safe (and necessary) to just add more coolant until it is at the proper level. Make sure the coolant you add is a 50/50 mixture of water/antifreeze. I use Prestone 50/50, which is already mixed.
 
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