slide diaphragms

[jjz28]

Are you being serious ian? Gorilla glue is some good stuff. I know people have used the plastidip for a year with no problems but I doubt it would work long term. I could see how it would flake off into the chambers too. Will gorilla glue work?

[kflyboy]

thanks guys. I am going to order them. 2 of the 3 on the 750 had little holes in them but I am going to go ahead and get all 3. Could these cause a hanging idle? that's the problem I was having. I also have all 3 intake valves too tight and one exhaust too tight.

Hanging idle can be caused by tight throttle cable. Check to see if there is a little slack at the adjuster under the right side grip. Happened to me once while I was trying to synch the carbs. Drove me nuts untill I figured it out.

[WMarshy]

I never synched them, just a bench synch. I have never synched the xs1100 either but it must be a lot closer cause it runs great. I just thought it was weird that I could turn all mixture screw and it didn't make a difference.

This makes me believe the tips are broken off in the carb body. You should take the screw all the way out and inspect the tip. JAT

[jjz28]

that was one of the first things I done was check the tips. Now it seems they are making a difference. Since I got it reassembled.

[Rasputin]

Has anyone tried the plastidip that is in the tech tips for fixing the pinholes in the diaphragms? I am going to try it. That is all that is keeping me from fixing the xs750 at this time and if it don't work, I will just get new ones. Just wondering if anyone has tried the plastidip though. THanks.

I have tried it and so far it is doing ok. I did not do it more than 2 yrs ago and the bike has seen minimal mileage since. Part of having too many of these is that you do not get to ride them all enough.
Thing that I want to say is that the gas does not come in contact with the upper side of the diaphragms. Air only gets in there due to vacuum. If the gas will penetrate the small pinhole one fixes then I guess the hole was a bit large for the fix.
It is worth a try and we would welcome back a report if you try it.

[CaptonZap]

The key to success using Plastidip, as in a lot of other things, is in surface preparation.
The diaphragm surface around the hole must be cleaned, Toluol is recommended, abraded, solvent cleaned again, and then a number of small light coats applied, starting on a big area around the hole, and as each coat is applied, the area being covered becoming smaller.
Think about a tire patch, thin at the edge, thicker in the middle, and try to make a simile with the Plastidip. I put a couple of coats on each side, so that the coating sticks to it's self where the hole is, and resists
coming apart, much like a grommet in a canvas.
But above all, a CLEAN, abraded surface, and not to thick.
Since all I could find was a spray can of the stuff, I sprayed some liquid into the cap, and applied the liquid with a small paint brush. By the time I got the first coat on all the holes, the first one was ready to be re-coated. Mind you, it was a warm dry day, so if you try it in your cold garage, you might want to let the coats dry longer between re-coats. When all else fails, read the directions.

CZ

[IanDMacDonald]

Yeah, I was serious about gorilla glue. workee great for me, as recommended by several forums I'm on.