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Monday, November 15, 2010

VT250F "Silver" part 03: replacing the clutch and brake master cylinders

Today's mission was to remove the old clutch and brake master cylinders and connect up the new ones, then fill them with fluid as well as attach the nice new levers.

vt250f,honda,clutch,brake,master cylinder
"all the lovely weird build up on the old cylinder"

Both cylinders came off the bars easily, however I was struggling to remove the cable lines for a good 20 or more minutes. Dad walks over and immediately spots the problem, turns out I was turning the bolt the wrong way. I recommend you all learn the mantra "lefty loosey tighty righty". This of course is only good if your holding the part the right way up, which I wasn't.

Once that little problem was resolved we could then have a quick look inside the old cylinders. They were both full of crap. The brake cylinder is much worse though. I have been told however then it can be reconditioned and left on the shelf as a spare, which to me sounds like a good idea. The plastic window on the side can also be replaced through an online seller.

vt250f,honda,clutch,brake,master cylinder
"dirty"

The new cylinders then had their levers attached and were mounted on the bars. Bolts from the old parts where used when attaching the levers as thats all I had available to me at the time. The clutch went on with no problems what so ever as it was off of a VT250F. The brake cylinder though was off a CB250, which meant the fluid line comes off the side and not off the front. Luckily its a small part and fit without issues. To be honest I prefer the CB250 part since I can see the levels window while sitting on the bike, unlike the previous part which had the window located on the opposite side.

vt250f,honda,clutch,brake,master cylinder
"new clutch master cylinder with its new lever looking very good indeed"

vt250f,honda,clutch,brake,master cylinder
"you can see the gap which the old part would have used, works though'

Bleeding the brakes was the next step, so as its a two man job I fiddled with the lever and dad was on the bleed valve. After 15 minutes of not getting anywhere it was discovered that the lines where full of crap... oh joy. Dad being the genius that he is feed some Mig welding wire down the line which cleared it up enough for fluid to pass through a little easier. With that done we started bleeding the brakes again only this time it was successful. The brake pads are worn though and will have to be replaced.

As a quick note I should mention when the bike is stripped down the plan is to replaced the original lines with braided steel lines. This mean they will be more efficient and also look a hell of a lot better.

Happy that everything works and progress had been made I then trial fitted the bar end mirrors that arrived the other day. They fit no problems which is a relief, but we might need to use an extra sleeve so it stays in nice and tight. regardless they look good and will look even better when the bike is finished.

We then turned the bike over and let it idle for a while just to hear that sweet, sweet sound. While it was idling Dad discovered a hole in the exhaust which wasnt too big a surprise. When the bike is stripped down I will most likely get a completly new set made up.

Thats all for now. You should have a look at the video though by clicking here.

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