'03 EC300 Nissin front master cyl kit?

B

brider

New member
I can't seem to find on-line a rebuild kit for the Nissin front brake master cyl on my '03 EC300. Gotta be a common kit for many years, what's a good source, for this and the rear brake and clutch, too?
 
Easy as, but, as usual you dont say which planet you live on.

At some point the masters get oval bore as ally bore. Some places will offer stainless sleeve insert. Or buy another low mileage one of same size and outlet.

Check carefully the size of master cylinder. Front will be 11mm, but rears change. Cast on the side.
 
(F5) said:
Easy as, but, as usual you dont say which planet you live on.
Click to expand...

Touche' ! Got me there, although in this day and age I was ASSUMING an on-line source, which doesn't care which planet I live on.

I'll continue to search, but I would imagine it's common to swap in a non-Nissan M/C & lever unit with the same bore & outlet config.
 
Replace the Nissan with a brembo .All you need is a brembo banjo bolt as it is a different pitch but still 10mm.Putting a MC with a smaller piston will give a softer more progressive pull .Personal choice though ,I found the Nissan way too abrupt
 
Rear brake is a little trickier, there a a couple of sizes. It will be cast into the cylinder, something like 1/2 which is a fraction of some antiquated measuring system involving inchworms or something ?

The clutch back then I'm not sure if it used DOT4 brake fluid or mineral oil. Will be written on the clutch cylinder cover.

You will need the right seals to match. DOT will be something like Nitrile and oil; EPDM, but you dont need to know that, just what type of fluid they use for the kit.
 
Well,first you'll need to know the brand of your clutch master, then the size .Early gassers used AJP ,Braketech or whatever they had on the shelves ,you probably find the clutches use Mineral oil (usually denoted by a green cap on the master) the brakes are Nissin ....Honda ,Yamaha ,Kawasaki every one used them .Find out the piston size and it will be easy to find
 
This is cheap Chinese knock off crap ...AVOID .As I said ,you can buy a rebuild kit From Honda ,Yamaha etc
How can genuine gasser riders even recommend this shit !!! So much bad info posted
 
I got one about 5 years ago and it still works fine but if you want to.take your money and throw it out the window more power to you.
 
So you buy a euro bike and put cheap shit Chinese knock off parts, and you think that a $25 Chinese copy (probably illegal) is of same quality as a genuine Nissin MC ...you delusional tightass
 
I was trying to diffuse the situation when a very angry man was getting abusive. :rolleyes:
 
While OE parts tend to be higher quality, many of us have had OE parts fail too. I have used the knockoff versions and I have rebuilt the stock ones. I had one knockoff fail out of the box and the ebay seller sent me another and it has been working fine for >5yrs. I chose to spend roughly 20% of OE prices and that suits my purpose. For many people this is an expensive hobby especially if you have multiple kids in college that also ride dirtbikes. It is all about personal choice!
 
Hell I'm just a cheap ass and have had no problem with them. Once upon a time Japanese stuff was considered inferior.
 
I'll use whatever I wish on my bikes. Like running All Balls or Pivot Works bearings vs OEM. I learn what brands work and which ones don't and buy accordingly in the future. If you want to write a blank check to cover all my future parts buying then I'll run whatever you wish on my bike!

Resulting to childish name calling when someone shares what they have used with success, but you don't agree with for whatever reason, or someone making a joke to lighten the mood, is BS we don't need on this forum. Please take that attitude over to Vital or one of the other crap talking forums. We actually try to help each other here and don't need nor want that crap.
 
OK then!

I finally got off my ass and BLED the front brake, seems to work fine now. But thanks for the link to the Hond (knockoff?) front brake MC, I have no problem using something like that if the need arises.
 
UPDATE: Front brake holds pressure now, except the lever feels like the system is pressurized......no "free" play once the lever makes contact with the MC plunger, and it's a HARD lever, and there is insufficient braking action for that amount of lever pull.

I also overfilled the reservoir, because you can't see any air above the fluid level in the window and I thought MAYBE that was causing it, but it just occurred to me the the CALIPER is probably frozen!? So yeah, now the search is on for a replacement caliper or rebuild kit. The casting is featureless as far as I can tell, I assume it's a Nissin?
 
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