Brake it too me slowly!

[Spins]

Thanks,
I believe it bleed properly. It’s not difficult. I’ve done this many times on cars.
Is the piston seal replaceable ?

[2LZ]

If you do replace the master/handle, just replace the entire thing instead of just a piston cup. Super cheap.

I gravity bleed mine. Works fine. Hook a vac tube up to the caliper bleeder and stick the other end in a jar with a little fluid in it. Uncap the master and open the bleeder. Let it drain into the jar. You'll probably see bubbles.

[Kenstogie]

bled my front and back brakes today after work..... stops considerably better...also cleaned my rotors ....

fwiw my TBR7 indicates dot 4 fluid on the rear master cylinder..... which is what i used castrol to be specific Castrol 12509 Dot 4 Brake Fluid (12 Oz).... available probably everywhere but of course amazon...

[Spins]

Glad to here your brakes are improving.

[gwowzer]

I drained, flushed and bled according to csctt250 tutorial online which will be essentially identical to your process and as I drained, then bled, insured I was adding a known good quality dot 3 fluid. Flushed the system out completely (stock shipped fluid was a questionable yellowish tint), and all has been very strong with the braking.
I am pretty sure whatever fluid they are shipping is the same as what was in the forks. Hydraulic fluid just the same but also hydroscopic so not a good idea in the forks. Best to do both changeouts in an afternoon.
The one man bleeder I didn't find necessary, at all. With two beers and some extremely mild acrobatics was much easier than any typical car. Very small amount of fluid the motorcycle holds so you flush it all out in about two or three pumping and dumping cycles.

[Megadan]

As far as fluid goes, this is my favorite go-to. https://www.amazon.com/Ravenol-J3A10...8&sr=8-1-fkmr1

5.1 is compatible with 4 or 3, and has a higher boiling point than either both dry and wet.

[Kenstogie]

Originally Posted by Megadan

As far as fluid goes, this is my favorite go-to. https://www.amazon.com/Ravenol-J3A10...8&sr=8-1-fkmr1

5.1 is compatible with 4 or 3, and has a higher boiling point than either both dry and wet.

better yes but also 2x the price..... If you are not breaking heavily and consistently is it necessary or in other words ......How much better is it? does is justify the price? (maybe it absolutely does just wondering)

(I picked castrol cuz it was the least expensive Dot 4 from a reputable manufacturer I could find on the Zon..... with out searching forever......searching on amazon can be like falling down a rabbit hole )

[bogieboy]

Originally Posted by Kenstogie

better yes but also 2x the price..... If you are not breaking heavily and consistently is it necessary or in other words ......How much better is it? does is justify the price? (maybe it absolutely does just wondering)

(I picked castrol cuz it was the least expensive Dot 4 from a reputable manufacturer I could find on the Zon..... with out searching forever......searching on amazon can be like falling down a rabbit hole )

rabbit holes? they have those....LOL you want book, MP3, digital album? take your pick...LOL

[Spins]

I reached to Jeff at PeaceSports today about the problem. He’s shipping me a new caliper and master cylinder assembly. Awesome customer service!!

[Megadan]

Originally Posted by Kenstogie

better yes but also 2x the price..... If you are not breaking heavily and consistently is it necessary or in other words ......How much better is it? does is justify the price? (maybe it absolutely does just wondering)

(I picked castrol cuz it was the least expensive Dot 4 from a reputable manufacturer I could find on the Zon..... with out searching forever......searching on amazon can be like falling down a rabbit hole )

2 times the price? Might want to check the math there Your posted bottle was 12 oz for $6.77, or 56 cents an ounce.

Mine was 32 ounces for $16.79, which is 52 cents per ounce.

[Kenstogie]

Originally Posted by Megadan

2 times the price? Might want to check the math there Your posted bottle was 12 oz for $6.77, or 56 cents an ounce.

Mine was 32 ounces for $16.79, which is 52 cents per ounce.

i guess id better check my amounts thanks mega dan😀

[Megadan]

Originally Posted by Kenstogie

i guess id better check my amounts thanks mega dan��

No biggie. I figured you didn't see the bottle size. It's just the economics of scale at work. We are talking a couple of pennies at the end of the day between them. I like the Ravenol because it's a good German brand, is DOT 5.1 synthetic, and it comes in a metal container, which does not allow the transmission of water molecules, unlike plastic, so it should have a longer shelf life/stability if stored in a climate controlled area. The only downside to it is, you can't just go pick it up at the parts store whenever you need some, which is why I always have a new bottle on hand whenever I open the next one.

[Kenstogie]

Originally Posted by Megadan

No biggie. I figured you didn't see the bottle size. It's just the economics of scale at work. We are talking a couple of pennies at the end of the day between them. I like the Ravenol because it's a good German brand, is DOT 5.1 synthetic, and it comes in a metal container, which does not allow the transmission of water molecules, unlike plastic, so it should have a longer shelf life/stability if stored in a climate controlled area. The only downside to it is, you can't just go pick it up at the parts store whenever you need some, which is why I always have a new bottle on hand whenever I open the next one.

i always wondered....after you open a can of brake fluid how long can you still use it? i am sure ambient conditions would make that time vary but i am talking on the shelf near all your other chemicals in the garage....

EDIT: did some research and an open can would be about a year (at most from what I read) and never opened in tin can would longer than never opened plastic

it turns brown/black as it ages

Google Says:
within 12 months
Most manufacturers recommend that any open bottle of DOT brake fluid should be used within 12 months, or else discarded. Keep in mind that a full year is the very outside limit of what would be acceptable.

Opened vs. Unopened http://knowhow.napaonline.com/unders...to-essentials/
When a bottle of brake fluid leaves the factory, it’s sealed so that it doesn’t come into contact with any outside air that might also contain moisture. Most brake fluid manufacturers state that a sealed bottle has no set expiration date. In a sense, the fluid doesn’t break down over time and offers the same level of performance even after years on the shelf.

An open bottle is a different story. Even if you’ve only poured a little out of the bottle, you’ve still introduced moisture into the equation, and the chemical process of absorbing that liquid from the air has begun. Most manufacturers recommend that any open bottle of DOT brake fluid should be used within 12 months, or else discarded. Keep in mind that a full year is the very outside limit of what would be acceptable. A three-month period is more likely to offer a better limit of safety in terms of keeping the boiling point near its original level

[Spins]

Just wanted to post an update. Jeff at Pease Sports shipped me a new caliper, line and master cylinder. Installed everything problem solved, back up and riding.
Great service!!

[Spins]

Hey Guys, I was out riding last night and my master cylinder is failing again. My brake lever is slowly pulling to my bars at stops. It’s not as bad as before but definitely needs replacement. I only have around 700 miles on my bike and now this part has failed twice. There are no leaks that I could find. I didn’t bleed the brakes after Jeff replaced it under warranty the first time, I wanted to ride. I haven’t experienced any issues to date except the poor initial bite. So my question? Should I reorder from Jeff or where could a get a better quality part that would fit? I don’t mind spending a little more as I’d like to put this issue to bed.