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i'll look to see if I can locate a pic or two of the sight glasses I replaced on my motorcycle ?, been a while sense I looked at them ?.lol.
 

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Discussion Starter · #26 ·
you have two options, one, which is very high dollar !, replace the whole master cylinder. two, replace the sight glass ?. then can be done a couple ways, either jb welding a dime in there ?, or using a replacement sight glass kit from ebay. you have to search for motorcycle sight glass kits for Honda, but they are all the same when it comes to sight glasses on master cylinders for brakes and clutches :).

Is this one a good replacement?

Brake Master Cylinder Sight Glass for Honda Yamaha Suzuki Kawasaki Motorcycle | eBay

Are they hard to replace?
looks good to me ?, I've used the ones that you have to seal in with sealant, but this one looks like it will do just fine. measure your sight glass hole, and see if it's 18mm ?.

I know this is a stupid question LOL but since I'm ignorant about such things, including math LOL, what's the best way to measure them? All I have is a measure tape, and measuring the window across, I know 18mm is way too large. I want to get a correct measurement before I purchase a new one.
 

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looks good to me ?, I've used the ones that you have to seal in with sealant, but this one looks like it will do just fine. measure your sight glass hole, and see if it's 18mm ?.

I know this is a stupid question LOL but since I'm ignorant about such things, including math LOL, what's the best way to measure them? All I have is a measure tape, and measuring the window across, I know 18mm is way too large. I want to get a correct measurement before I purchase a new one.
I use a digital mic I bought from harbor freight , about 10 bucks ?. it measure in inches and mm :).
 

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I used a vernier caliper to measure the inside diameter of the silver ring--and came up with 18 mm--this caliper shows measurements in cm
as I said earlier, most all Honda master cylinders are 18mm.
 
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there is also a allen screw set you can buy to use in place of those rusted out, hard to remove screws !, I need to buy me a few sets, and use them on all my atvs, I got them on my motorcycle master cylinders for the clutch and brakes, they make it soooo much easier to remove the covers on them.
 

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Quote Shade (but if you stop and think for a min ?, the master cylinder is further away from the left side that it is the right front side, correct ?. this would mean the front left is further away :).[/QUOTE]

but , from the master cylinder to the tee it is one hose which is equal , then from the tee the hoses are equal lengths to the cylinders , so being farther away physically has no bearing as the fluid travels the exact same length on both sides ------- on a automobile the tube and hose on the left side are shorter than the ones on the right side and it does make a difference
 

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there is also a allen screw set you can buy to use in place of those rusted out, hard to remove screws !, I need to buy me a few sets, and use them on all my atvs, I got them on my motorcycle master cylinders for the clutch and brakes, they make it soooo much easier to remove the covers on them.
I've done the Allen screw conversion on anything with a cap/lid on my 300 that originally had those god-awful Phillips screws. Brake reservoir, vacuum plunger cap on the carb (to easily access the fuel needle without removing the carb from the bike), carb bowl, etc.

It's well worth a few bucks to replace them before they strip out.
 

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there is also a allen screw set you can buy to use in place of those rusted out, hard to remove screws !, I need to buy me a few sets, and use them on all my atvs, I got them on my motorcycle master cylinders for the clutch and brakes, they make it soooo much easier to remove the covers on them.
I've done the Allen screw conversion on anything with a cap/lid on my 300 that originally had those god-awful Phillips screws. Brake reservoir, vacuum plunger cap on the carb (to easily access the fuel needle without removing the carb from the bike), carb bowl, etc.

It's well worth a few bucks to replace them before they strip out.
I agree, those pesky screws are a pain to remove if they have never been removed for some time ?, I always have to use a drift punch and hammer to tap them out, what a pain I tell ya !..lol.
 

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Discussion Starter · #37 ·

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So I should be 95% safe getting that one in the Ebay link?
yep, should fit, read their ebay feedback score before you buy ?!, this says a lot about their products :).
Will do ;) So I remove the old one from punching it out from the inside, like that video shows?
the video shows him punching a starter hole out from the inside, but you can do it either way, just don't damage the metal ring ? ( not that it does anything important )..lol.
 

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I have had to drill out many of those screws in the master cylinder cap , seems they usually are stuck in the cap as once you drill the beveled head away and get the cap out the way you can grab whats left of the screw with a needle nose vise grip and they come right out
 

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I have had to drill out many of those screws in the master cylinder cap , seems they usually are stuck in the cap as once you drill the beveled head away and get the cap out the way you can grab whats left of the screw with a needle nose vise grip and they come right out
been there, done that, they break off down in the master cylinder, lol. out of all the parts to work on ?, those screws are the worst !..lol.
 
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