Assembly Of 81 Xs1100 Mns Carburetors

[stunna]

I am back again. I was fortunate to get my hands on a 81 1100 MNS w/37,000 miles about 8 months ago; however, I sold it without realizing what i had. Anyhow, just scored another 81 XS1100 MNS, with only 4,000 from the ORIGINAL owner. The bike still has original W/L tires and NO DRY ROT on them. NO RUST anywhere on this bike even the gold trim or black exhaust. There are a few things wrong which is why I am back hoping to get some help from the experts. The carburetors were taken apart completely for cleaning. Each carburetor is off the rail, etc, etc. I have all the parts to reassemble; however, I was wondering if anyone knew where I could find a detailed step-by-step illustration for reassembly OR where I could take them for someone else to reassemble. I live in Baltimore, MD. Once, I get
the carbs done, he will be ready to light off. Can't wait to hear the sound of that motor again.

Any help appreciated.

Danny

[81xsproject]

gotta repair manual yet? Worth the $ for sure, and all over ebay.

[prometheus578]

What's in a name?"

he will be ready to light off

Creatures of grace and beauty are to be referred to in the feminine. (Though some females, like these bikes, can be real bruisers)
First off... get rid of the 25 year old tires! Bikes that sit in one spot for several months with low tire pressure can develope flat spots.(new bikes shipped in crates, etc) These may eventually even themselves out after a few hundred miles. A 25 year old bike, with 25 year old tires and only 4,000 miles on it, has done a lot of sitting. And don't believe the owner if he says that he didn't let the tires go flat once or twice over the decades! Schedule an appointment with your dentist now, as those tires will jar the fillings out of your teeth before you get around the block once.
Dry-rot is the rubber's reaction to the outside environment. (I've never seen dry-rot on the inside of a tire.) The lack of dry-rot doesn't mean that the rubber compounds haven't hardened or deteriorated over the years.
The manuals only have an exploded veiw of all the parts, though there is a section on cleaning carbs and such that should provided several close shots of part placement.
Any competent bike shop should be able to put these back together and adjust them... but you're talking at least a minimum of three hours, usually at $75 per. (completely apart... down to the last screw, washer and seal?)
Other than my usual "Gloom and Doom"... sounds to me that you've gotten a great machine there! Congratulations

[wingnut]

New Midnight

Congrads!!! Being a displaced Baltimore boy I could not resist trying to help out. When I got my 81 SH back in Oct I got all four of the carbs disassembled in plastic bags. Between this web site and the IBP from this web site

http://www.benefiscal.co.uk/index.php

I was able to put them back together and the bike runs great. You need a manual in a big way so jump out there on Ebay and get one. Welcome back to the XS world!

[fxrer]

Good find!

Yes, a manual is a must for any owner, not only for this job, but also for future reference, especially concerning the maintenance procedures. There are exploded diagrams of the carbs, which help a lot.

But, THE NUMBER ONE topic of discussion on this forum is carburetors, with literally HUNDREDS of posts. If you do a SEARCH FOR: “carburetors”, “carbs”, “jets”, “diaphragms”, “floats”, etc., you will learn, and see, more information here than in 10 manuals. Some gurus, like TopCat, Ken Talbot, and others, have also posted very clear pictures to illustrate the subject at hand.

It will take time to sort through all the info, but it’s here, for sure!

If all else fails, many members (including me) would likely be willing to re-assemble your carbs.

[fxrer]

P.S.

Start at the left column with Tech Tips>Maintenance>Carburetors, and read all those tips. Also check the Repair section.

Like I said, LOTS of info here!

[DiverRay]

Do get a manual!! And you do NOT need to go to ebay. I bought mine at a local motorcycle shop. The manual is still available new, and it's about $24.95 retail.
I hope the carb parts are in seperate containers, as you do not want to mix the parts up. I would assemble the carbs one at a time, but leave the top screws loose. Then put them one at a time on the bar, starting with #4, then 3, etc. The only hard part will be getting the enriching rod on. Just go slow, and it's not that bad a job. And don't forget to put a little synthetic grease on the rod and detent springs. This will keep the choke working smoothly.
Welcome to the site
Ray

[xs650mike]

OEM Tires

Those tires have hardened and will be slippy-slidey even if they are still round. I remember that the OEM Bridgestone Mag Mopus tires were absolutely horrible anyway even when new. A set of those came on my XJ750. When I wore them out and replaced with Dunlops it was like night and day, hard to believe it was the same bike.

Congrats on the Midnight!

[dpotter58]

Hey Stunna, I have an 81 MNS and live down in Southern Maryland. When you get up ready to ride let me know and I'll meet you somewhere for a day.

[mro]

scored another 81 XS1100 MNS

Please post a pic.
No rust? 4000 miles? cool
Got a project to start later this year on a 80LG and like to see what I'm missing.



mro