Main Jets for 1981 XS1100H

[mmatches1]

Forgot to mention that when I pulled back the faring I noticed that the bike had headlight brackets (wired together with a snap tie). Maybe it was originally a sport model and modified later.

[crazy steve]

I have the manual with the supplementary section - 80-81..

If you have the Clymer manual, be aware that there's a lot of incorrect info in those. The charts I posted are out of the factory manual, and I'd believe those over the Clymer....

[motoman]

Forgot to mention that when I pulled back the faring I noticed that the bike had headlight brackets (wired together with a snap tie). Maybe it was originally a sport model and modified later.

Actually, the Venturer could be stripped to legally run that way. Headlite comes out of fairing and bolted to the brackets. Only thing missing is the front signal stems to do that. The wires are already existing to plug'n'play. It was advertised, pictured and sold as a Venturer model,full fairing with lowers,frontal tip-over/'crash' bars,wrap-around tip-over frame work/side case saddles,and rear luggage rack with an adjustable slide-in back rest, based on a Standard chassis with suspension, ignition upgrades along with an added oil cooler set-up from the factory.

[DGXSER]

A little added info for you. I have always jetted my SHs (I used to have two of them) 110 across all four. They ran nice that way. Got between 32 and 42 MPG depending how far I was riding, and how much travel my right wrist gave that throttle.

My current SH has aftermarket 4-2 Exhaust. Factory headers with aftermarket slip-ons, I think they are Jardine, not really sure. I recently swapped 120s in for the 110s. I can tell you without a doubt that my top end is much better now. I do not think I lost any bottom end from the change. And my gas mileage has not noticeably changed. YMMV.

[mmatches1]

Interesting - I will monitor the performance and see what happens. I pieced the carbs back together today and the next task is to join them together. I separated the units for cleaning.

[mmatches1]

Another strange thing about my bike is that it has the Special style handlebars. The engine is silver but the valve cover is black. Some nut filled the insignia mount on the tank and I cannot mount a logo unless I can somehow dissolve the bonding. The tank is the larger touring model.

[Schming]

Another strange thing about my bike is that it has the Special style handlebars. The engine is silver but the valve cover is black. Some nut filled the insignia mount on the tank and I cannot mount a logo unless I can somehow dissolve the bonding. The tank is the larger touring model.

Hey bud your tank came stock with self adhering emblems no screws or mounting tabs

[DGXSER]

Yep, one of those subtle differences in the H versus the other models. The larger tank never had screw on emblems, they were stick on.

[mmatches1]

I guess the guy that sold it to me was right - stick ons? I thought he wanted to make a bad ass black bike with no logo that looked like a Harley. Are the stick -ons still available?

[Schming]

I guess the guy that sold it to me was right - stick ons? I thought he wanted to make a bad ass black bike with no logo that looked like a Harley. Are the stick -ons still available?

Here's an option other site members have used:

http://www.ebay.com/itm/YAMAHA-RX100...item2a28ed6d19

They are reported to be identical, post #9 in this thread:

http://www.xs11.com/forum/showthread...r+tank+emblems

[Schming]

Interesting - I will monitor the performance and see what happens. I pieced the carbs back together today and the next task is to join them together. I separated the units for cleaning.

While you have them torn down this far you may want to do the full refurb and replace the butterfly shaft seals.

[mmatches1]

Is that the throttle lever seal? 256-14997-00-00
I hadn't planned on replacing them but may as well.

[DGXSER]

I have never tried to remove the butterfly shafts on a decent set of carbs, but I have on a junk set I had here. From my experience, it is one of the hardest things to do on the bike. Those little bugger screws are peened over on the back, so you have to remove that some how, then remove the screws, now get the shaft to slide off of the butterfly plate without bending one or the other.

IMHO, that is one of those things where "if it ain't broke, don't fix it!" way to much chance to bugger something up.

[Schming]

Is that the throttle lever seal? 256-14997-00-00
I hadn't planned on replacing them but may as well.

Yep and link :

http://www.boats.net/parts/detail/ya...997-00-00.html

Some guys over on the XS650 site are using 2mm x 7mm viton o-rings also.

When I do mine I'll go with OEM stock Yamaha.

[Schming]

I have never tried to remove the butterfly shafts on a decent set of carbs, but I have on a junk set I had here. From my experience, it is one of the hardest things to do on the bike. Those little bugger screws are peened over on the back, so you have to remove that some how, then remove the screws, now get the shaft to slide off of the butterfly plate without bending one or the other.

IMHO, that is one of those things where "if it ain't broke, don't fix it!" way to much chance to bugger something up.

The only reason I suggested the shaft seals is he has the carbs separated as stated and the only way to do that is pull the throttle plates.