What did you do to your Yamaha today?

I used some black RTV around those end pieces or half moons

 

I use it to and live for all night to dry ,for some time hold ok now came out.

 

Going for a ride today other then to work. No particular place just not in town.

 

being as I replaced my front brakes I realized that the left caliper is not working.
Decided to take it apart in the hopes that it just needs a good cleaning.
Currently unable to get the pressure cups to pop out, any suggestions?
I do have them soaking in PB cleaner currently.

I had a problem getting the cups out of corroded calipers. Tried cleaner etc. I eventually poured boiling water in a pail and soaked them for 15 minutes. Loosened very nicely. BTW - Great idea for removing old paint and varnish from small metal parts, get an old used slow cooker and cook them for 6 hours with a small amount of detergent. Every slides off easy. Make sure the parts aren't heat sensitive.

 

Nice going to give it a try this evening.

 

use a grease gun to force it out

 

Installed new battery & fired her up......

 

Pressure cups? The pistons?

If you lack the correct fittings/equipment to do this (my situation, at least) then just connect it to your master cylinder directly (single brake line, as short as possible, between the MC and the caliper) and force it out that way. With the caliper in hand, it's pretty easy to manipulate it about to get any air out and bleed the mini-system. That way, 100% of the actuation force from the master cylinder is directed into that caliper. If it's going to come out, it'll come out that way.

 

I actually used air pressure from my stand up tank. Placed a rag folded in half so when they popped out no damage.

Just ordered two rebuild kits as the inner rubber seals looked as though replacing would be a good idea
Not sure if you can see but the first picture there is a lot of junk in the little hole on the right side.
Need to get some steel braided lines. One thing at a time or mom will realize what I am spending LOL SHHHHH

 

Very nice now we need to hear it going down the road preferable at the higher RPMS AUDIO PORN

 

Just out of curiosity are both of the cups supposed to come out of the front brake calipers?

 

Cups? They've only got one piston each...? What exactly do you mean? The seals on the slides?

 

Before that , today's agenda includes vacuum sync'ing & colortuning, & then vacuum sync'ing again.........then I will "head on down the road" with the Black Max

 

maybe the dust boots

 

Curt, I'm in Minneapolis. We should connect up for a ride.

 

I used a small, portable air compressor. Take an old piece of brake line, with banjo attached, and cut it a few inches from the banjo, to give you a pigtail. With that tightened on the caliper, use the "inflatables" adapter for a compressor to blow the piston out. My compressor handles high PSI and lets me set a PSI shutoff, so I went slow and just gradually cranked that up until it popped out. It helps to put some rags or something in front of the piston to keep it from shooting across the shop.

 

E-mail me, hennepinboy@yahoo.com

 

I love that these bikes idle sounds like cars from The Jetsons....

 

Stumbled onto a Seca front fairing for free on Kijiji.

While I don't have a use for the fairing itself, I'll be mounting the windscreen portion to my Maxim this weekend.

 

I bet someone here would take that off your hands...

 

If someone wants it (less the windscreen itself) they're more than welcome to it. I got it free, so certainly don't mind passing it on. Prolly be a PITA to ship but I'm sure there's a good way to do it.

 

Off to Vintage Bike show tomorrow in Paris (Ontario, not the lesser important Paris..) tomorrow. Hoping to meet Simmy and a few other XJrs. Check the bikes, share stories and learn from the experience

 

Post pics! Share the experience with those of us stuck at home

 

Where's the XJs? Haven't seen one. Still looking for Simmy if you're here.

 

Replaced fork fluid today. I did not have 'extra set of hands' to press down on cap while removing clip.

Instead I used a long piece of quarter round molding. With bike on center stand, I used the molding to press down on the fork cap, then jammed the other end of molding against garage ceiling. Worked great to hold down fork cap while removing or replacing spring clip. The flex of the molding kept pressure on the cap.

 

Installed my new brake rotors. Then, I started reassembling each carb, broke a starter valve seat, ordered a replacement from Chacal, and finished assembling what I could of the carbs.

Cleaned up and took the wife out to our local for burgers and beer.

 

Adjusted the front end, swapped out my signals for the tiny little LED indicators; repositioned them and the headlights.

Started building mounting brackets for my soon-to-be windshield. No idea how well it's going to work out, but hopeful. Aluminum brackets from the headlight to the lower edge of the wndscreen, threaded rod from P-clamps on the handlebars to the mid sides.

Wasn't going to do the windshield thing, but I do 50km at highway speeds every day, and I'm a big guy. Tired of being a sail

 

Yesterday i change front oil fork,cut rear spring and put rear front for 2cm lower,make a ear sync carb ,and then i go for a ride .i make 30 km,realy nice when you ride.

 

Finished the windscreen mounts, test fit the system (all good!) and painted the parts.

 

I pulled the deck off, scraped it down, washed it, and sprayed a coat of primer on.

No, wait....that was the mower

 

It needs a pod filter! You know it does. All the cool mowers have pods.

 

My bike was running unusually well this last week. I had to make an unplanned stop for gas at an Esso station yesterday and now it isn't running as well again. I'll have to check my bank statement to see where I had filled up the time before.

 

Well, after having yet another bowl overflow, finally changed ALL the needles and wet set... and I'm now just another in the long list of carb test stand builders...

 

I don't know why people on this forum say "it's no problem". This process was maddening for me. I feel like every time I moved my clear plastic tube the gas level would be +5mm above the bowl line or -5mm below the bowl line. It never stayed. Good luck. Also, pick a damn color already -- what's with all those samples.

 

I made a 3 hour round-trip so I could fix my son's truck (again). I'm very thankful for hydration bladders, shaved ice stands, and the relatively cool winds fom early-evening thunderstorms.

 

Laughing my ass off.... that's my wife from the last five years. And I STILL have a bedroom and bathroom to pick a color and paint.

 

when you finish painting it time to sell the house

 

you lift the hose fuel level above the fuel level in the carbs it forces fuel back into the bowls.
what are you using for a fuel supply to the carbs when you wet set?

 

So I am trying to rebuild calipers?
The one in my left hand poped right out with a little air pressure
Now the one in my right hand is it supposed to come out as well?
I am asking because the rebuild kit comes with two sets of new rubbers (LOL) and only 1 dust cover for the bleeding screw.
In my mind that would mean that both sides get new rubbers.
However in the book it only shows one side being replaced.
Yeah I may be overthinking this

 

There are two rubber rings for each caliper. One is the piston seal, the other is a dust cover. They're not exactly the same, so it matters which goes where.

You'll notice, looking inside the caliper once the piston is out, there's two channels inside the bore.

 

got the left side piston out and it was all gummed up. Probably why it was not working. Everything changed just need to bleed the brakes now. Do that in the morning then going riding before it hits 100 degrees. Maybe the coast at least it will be cooler there.

 

I've noticed a lot of tech questions popping up in this thread lately.
Please keep posts in this thread related to what you did.
Post questions about what to do, or how to do something, in the appropriate forum area (preferably in the thread about your machine).

Thank you,
Management.

 

I just went through this for the first time and, once I figured out a few tricks, it wasn't too bad at all.

• First, set a baseline. I dry set my floats all the same using a small float ruler (this assumes you have matching floats, valves and seats). It doesn't really matter what you set them too, so long as they all match.
• Second, accurately get a fuel level. Once mounted in the rack, I connected the tubing and held it straight up (otherwise, I'd get a slug of air in there that messed things up). I'd loosen the plug and then slowly lower the tube down and around to the side. This method kept fluid from flowing back into the bowl and eliminated the air pocket. I took my measurement, shut off the gas, and drained all 4 bowls.
• Third, dry-set the floats against the wet measurement. If my wet measurement was off by 2 mm, I'd adjust each float 2 mm. Though not 100% accurate (because the float is hinged), this got me closer faster, since I didn't have to keep draining & measuring.
• Fourth, fine tuning. Re-do step 2 for each carb, one at a time. You'll start off very close. When you adjust, use your ruler as a guide to make sure you don't adjust too much in the other direction.

For me, the big issues the first time I tried it was the air in the line and the annoying, messy, and endless fill-measure-drain-adjust cycle.

 

1. This is really the wrong thread for that discussion.

2. Bending the float tang by 2mm to get 2mm of change in fuel height is the incorrect procedure. The tang just needs tiny bumps to make big changes in float height.

Now that I've broken my own rule (#2 does not belong in this thread), I'll keep to my own warning and delete any posts I make that don't abide by the purpose of this thread.

So everyone, what did you DO to your Yamaha today?

I didn't even get to look at mine; had to rebuild a 3-blade mower deck and put a new carb on a string trimmer.

 

Moved it from the shop to its parking spot in the shed for everyday riding.

 

Pushed my 82 650 Maxim out of the garage and made room for the girlfriends new-to-her 81 650 Maxim that I so graciously rode home for her. (After I bought it for her of course...late birthday present) Now the work begins! But hey, at least there's 2 xj's in the stable

 

Went for an evening ride about 20-30 miles round trip just to see the outlaying area and it was beautiful to get out of the city. Outside temp was 70 degrees very nice gonna take the wife tomorrow evening over the same route.

 

Gonna change my oil tonight after all the misc. float work I just did... and take a ride in the morning...

 

It was suggested in somebody else's thread about misfiring that the cause might be a failing fuelcock. My xj700n is having a similar problem that I thought might be related to the gas I am using because the misfiring appears to improve or worsen when I fill up. Usually when I fill up I am setting the fuelcock from reserve to on and the fuelcock also has an occasional drip. I tried the advice given which was to set the petcock to prime to remove the vacuum from the equation. This appears to have made a significant reduction in the misfiring although I may suffering from confirmation bias. I will order a rebuild kit from Len in any case.

It is uncanny how much knowledge there is on this site. I had read a post earlier predicting that the petcock would likely be the next thing to fail.

 

Swapped flasher module to account for LED signals, removed self cancelling module (which never worked in the first place). Discovered while doing this that my petcock leaks, but not till after it managed to cover my carbs in gas. Good times.

Then discovered my new "electronic" flasher module was not in fact electronic and would only work with at least one stock bulb. Put the original flasher back, got to return this and just order what I need from Amazon.

In the mean time, I guess I'll just utilize the manual flash method, or BMW method when there's less traffic.

On the other hand, the days ride in to work was fantastic, nice and sunny, lots of other riders out, and the XJ ran beautifully.