Author Topic: AIR FUEL mix screws  (Read 8607 times)

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Offline AussiXS11G

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Re: AIR FUEL mix screws
« Reply #32 on: March 01, 2012, 10:27:54 PM »
have a look here if you still need some....
http://www.mikesxs.net/products-37.html#products
Bryan
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Offline beemeerr11

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Re: AIR FUEL mix screws
« Reply #31 on: March 01, 2012, 12:16:08 PM »
Pete,

Can't get them through Yamaha but Xtian has made me an offer, I thankyou and will let you know how I go?

Lou

Offline petejw1966

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Re: AIR FUEL mix screws
« Reply #30 on: March 01, 2012, 11:18:54 AM »
lou,
if u have hassles getting a mixture screw
send me a pm with ur address ive got a spare here,
u also have the order correct screw, spring, washer, o ring.
Peter
suzuki 2008 hayabusa gen2


former owner
1981 XS1100RH

Offline beemeerr11

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Re: AIR FUEL mix screws
« Reply #29 on: February 29, 2012, 09:19:05 PM »
Just adding onto this, I managed to pull apart the mixture screw tonight while I was replacing the "O" rings in the needle/seat, two of the air mixture screws were a hassle one of the air mixture screws I needed to drill and then ezyout, this is the first time I've had them all out and need advise from you guy's??????

Who ever had the bike before me had at some stage removed the air mixture screws, this is how they were 2 of this "airmixture screw, spring, flat washer,"little O ring"
The other two were 'airmixture screw, flat washer,spring, "little O ring" I'd probably assume that it should be "airmixture screw,spring,flat washer,O ring"
I'll need to order another airmixture screw in the morning, If anyone know that there not available please let me know? and I'll try another avenue.

Lou 81RH

Offline exesiv11

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Re: AIR FUEL mix screws
« Reply #28 on: February 01, 2012, 07:39:34 PM »
Wow, seems Jonesy is wrong even when he is right  :-X :-X :-X

Offline petejw1966

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Re: AIR FUEL mix screws
« Reply #27 on: January 30, 2012, 04:30:00 PM »
makzy, if the 3 sets of carbs are off an xs,
the early model carbs had 3 holes in the back of the carb bell,
the later ones had 4 holes in the back of the carbs, both sets have
the kidney shape hole at the top, thatd be the easiest way to tell them apart.
or post pics.
Peter
suzuki 2008 hayabusa gen2


former owner
1981 XS1100RH

Offline excess.11

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Re: AIR FUEL mix screws
« Reply #26 on: January 30, 2012, 07:00:59 AM »
Maksy.....regarding the exhaust..........that can only mean one thing.......now you got to post pics of that as well as the tank.!!!
Regarding the identifying numbers.........and where they are located ......refer to the bottom post of Miti s on the above reference link i posted.
] ;D ;D ;D

Offline makzy

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Re: AIR FUEL mix screws
« Reply #25 on: January 30, 2012, 06:30:20 AM »
Yeah i got some pics of the tank apart, i did 2 actually, only put 1 back together so far, i'll try and post some with a bit of a story soon, latest tune up done with a small tank that sits on the frame behind the battery, and yes, on some models the middle 2 emulsion tubes had extra holes, here's something for the guru's, I have 3 sets of carbs that are almost identical, 1 has a circlip setup for the needels the other 2 are screwed in, but none of them have any numbers whatsoever on them to identify them!!! and here's another thing, i run 4 into 1 pipes with equal length primary's, the muffler i made myself, short, not real big, bit like the ones on moto gp bikes.
MAX
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Offline steptoe

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Re: AIR FUEL mix screws
« Reply #24 on: January 29, 2012, 09:31:57 PM »
I think what will happen from here is,, we'll all take a step back and refocus,,

it's kind of hard to move forward until the tank is finished and back on the bike, and some miles have been put on it

Offline excess.11

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Re: AIR FUEL mix screws
« Reply #23 on: January 29, 2012, 03:30:20 PM »
Yeah righto Ok If the author is to be believed I stand corrected. but only if thats a credible post you linked to.......damn I hat that....
"You hat that...??"
Well let me tell you...........what gives me the "shirts"..... is i gotta send you the "Dunces" hat after i ve finished wearing it !
Although i do think you need an extra hour or two in the naughty corner for the .."maybe jumped a tooth thingy" suggestion. I still can t get my left eyebrow to go back to normal after reading that one.
Seriously though.....it s all good.Any input right or wrong is always in the right direction of..."Your just trying to help a mate out"'

All the resources that are now available to us to help with problems on our bikes is phenomenal.
Hell......i ve even got Fred s number on speed dial.....if ever i want a body moved!
(I m currently studying " Brain Surgery for Beginners" on YouTube). 8) ???
 It s always going to be hard taking pot shots at a problem from a distance...........nothing beats having the patient right there before you with all the background history you can muster.Swap a part works a treat if it s tricky one.(Not recommended inYouTube Lessons so far..... along with using a hand mirror and operating on oneself.)
Looking forward to having a Beer or two with you at the Rally  Jonesy.....
« Last Edit: January 29, 2012, 09:41:45 PM by steptoe »

Offline Jonesy

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Re: AIR FUEL mix screws
« Reply #22 on: January 29, 2012, 01:40:52 PM »
Yeah righto Ok If the author is to be believed I stand corrected. but only if thats a credible post you linked to.......damn I hat that....
2 X 78E's
TRX 850.
CT 110
3rd XS not bought yet

Offline excess.11

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Re: AIR FUEL mix screws
« Reply #21 on: January 29, 2012, 01:08:39 PM »
Thx Pete.........your correct. I gotta not post on a Sunday morning after a late one.....i got it a little topsy turvy re pilot and emulsion.
Here s the link for reference.......refer to the fine print under the tables.
Jonesy correct on the lean vs rich...... (my bad....... late night excuse as previously explained ! ).........regarding the inner 2 cylinders being different and being set up different to the outercylinders to run cooler...i d never call a disbeliever a sceptic.
Read it and weep my friend...... ;) ;)

http://www.benefiscal.co.uk/forum/index.php?topic=3775.0
« Last Edit: January 29, 2012, 01:12:44 PM by excess.11 »

Offline petejw1966

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Re: AIR FUEL mix screws
« Reply #20 on: January 29, 2012, 11:47:39 AM »
on the rh engines/carbs, there are no bleed holes in the pilots,

on some of the earlier model bikes, the inner cylinders ran a richer
emulsion tube and a larger main jet, the pilots were all the same
across the board.
Peter
suzuki 2008 hayabusa gen2


former owner
1981 XS1100RH

Offline Jonesy

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Re: AIR FUEL mix screws
« Reply #19 on: January 29, 2012, 09:36:51 AM »
Quote
the 4 small holes in the pilots jets were designed to be used on the two middle cylinders only. To run leaner and help  alleviate overheating.


Hey Jeff where did you get this info? .....the only used in the 2 middle cylinders bit.
call me a sceptic but I dont believe it

I was always led to believe leaner was hotter?
rich running will blue an exhaust header, and leaner a yellow/gold, which requires more heat for metal to go this colour
2 X 78E's
TRX 850.
CT 110
3rd XS not bought yet

Offline excess.11

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Re: AIR FUEL mix screws
« Reply #18 on: January 29, 2012, 08:20:54 AM »
Great bio Maksy and thx...........if i ve got this right...........the tune up was being done with the...... ." pre cut in half and rewelded tank?" So contaminated , (rusty coloured) , fuel was being used?
 Now there s a key factor /contribution i m a thinkin........  ??? :o
One thing early on i found regarding fuel was.......... i personally don t use that friggin unleaded fuel additive/valve saver.
It caused my bike to run rich and produce smoke every now and then on start up as well as gear changing.I believe it s only a 2 stroke additive .Stopped using it and my bike has never shown signs like that again.
On one of the other issues you mentioned ......the 4 small holes in the pilots jets were designed to be used on the two middle cylinders only. To run leaner and help  alleviate overheating.
Any chance you took a pic or two of the tank cut and re welded?