What have you done to your XS today?

[5twins]

I've always used the copper anti-seize. I don't think Yamaha speced anything special (not that I've seen anyway). I think they just say "lubed".

 

[40north]

I've always used the copper anti-seize. I don't think Yamaha speced anything special (not that I've seen anyway). I think they just say "lubed".

Thanks old man... I hope to avoid the necessity... I have three frames and engines and buckets of bits and one is a runner, another one a hardtail...but I am not much interested in working on or building scooters anymore, getting nearer to the end of the twig... the runner seems quite sound yet, weeps a little at the gaskets goes like the wind... (the 50/50 graphite lube oil goes back to the flood, but I actually keep a can of it left over from a job in the 1980's - one makes it up one the job, very oldtimey) Thanks fellas copper A/S for the old gal it is

 

[40north]

I am fairly sure I have now by experiment and research understood the tire pressure question. It is that there exists more than one mechanism of pressure loss in the matter...more or less motorcycle tires, in this inquiry. It seems that there is permeability, in which case larger molecule gas would leak slower than air... And! Solubility. Evidently some gases and the elastomeric material of inner-tubes and tires are mutually soluble, and a differential density results in condensation-evaporation through the "solute" (which it is) of the tubes and or tire. Solubility reigns.

CO2 acts as an organic solvent in the experiment...and it "leaks" (actually evaporates through) faster than air. The fact that it's a larger molecule seems to be a difficult thing to account for experimentally...but my science fair is finished... best gas tire is (probably so far) air. But I wonder about silicone oil films...

 

[40north]

I am fairly sure I have now by experiment and research understood the tire pressure question. It is that there exists more than one mechanism of pressure loss in the matter...more or less motorcycle tires, in this inquiry. It seems that there is permeability, in which case larger molecule gas would leak slower than air... And! Solubility. Evidently some gases and the elastomeric material of inner-tubes and tires are mutually soluble, and a differential density results in condensation-evaporation through the "solute" (which it is) of the tubes and or tire. Solubility reigns.

CO2 acts as an organic solvent in the experiment...and it "leaks" (actually evaporates through) faster than air. The fact that it's a larger molecule seems to be a difficult thing to account for experimentally...but my science fair is finished... best gas tire is (probably so far) air. But I wonder about silicone oil films...

Aham a tinkin 'bout 3 drops DOT 5 si through the schrader valve tube ... if I feel like more 'spirimentin'. I remember from a longlongtimeago the Si "oil" doesn't have problems with rubber bits, from a brake lecture in 1980...big sales pitch for DOT 5, with an open bar!... I would not try this with a tubeless tire...maybe Si makie slip on rim...

 

[olewahrhorse]

Corrected some self inflicted wounds...Reset cam chain tension and readjusted points. I also started to mock up a light weight tool kit to mount where the side covers were. Painting the tank is next.

 

[azman857]

Yesterday, I took my rear wheel to Cycle Gear because a nail had found its way inside the tire. It was "Black Friday Sale", so I was hoping for a price break. Nope. That was not on sale. The new tire label said "No repairs possible". Since it was the same tire I had on already, I bit the bullet and had a new one mounted. They told me "2 days". OK. I saw a bunch of wheel waiting so I figured they weren't blowing smoke. Good news. Less than 24 hrs later, a text and a voicemail said "it's ready for pickup!" This afternoon, I went and got it and reinstalled it. Checked the sparkplugs since it had been a while. They were OK.
BTW It was a Shinko 777 tire. They are usually less pricey and grip like velcro, wet or dry. Tire life is pretty good. That said, I am not hard on my tires.
I would attach pics if I could find them.