« previous next »
Pages: 1   Go Down

Author Topic: Carburettors  (Read 2081 times)

0 Members and 1 Guest are viewing this topic.

Offline XSIIE

  • Hero Member
  • *****
  • Posts: 963
  • Gender: Male
  • Welcome to the group. Now let us know a bit about you in General Discussions and email me your postal details so I can send you our group stickers etc.
Re: Carburettors
« Reply #10 on: October 09, 2015, 10:55:44 PM »
I followed the recommendations from PGNZ on setting up the carbs.
You will find the post if you search back to about early 2014.

From memory He Did it all by eye.  Hey it worked

I then finished off with a carby sync
Logged
"If we do what we always do then
we will never be more than we are"
Poh (Kungfoo Panda).
78E x 2
78E DJP Chair
80G (current project)
81H
81RH x 4
82P x 2

Offline lumox

  • Full Member
  • ***
  • Posts: 52
  • Welcome to the group. Now let us know a bit about you in General Discussions
Re: Carburettors
« Reply #9 on: October 09, 2015, 10:07:12 PM »
Hi Eddy,

What did you use to get the poofteenth. 
Logged
I've been riding Yamahas since 1976. Only other bike was a Honda CB900F 1978.
last bike ridden XS1100RH 83 1995 sold the bike to fund an O/S trip. Have a XS1100E for 12 yrs and ready to restore.

Offline XSIIE

  • Hero Member
  • *****
  • Posts: 963
  • Gender: Male
  • Welcome to the group. Now let us know a bit about you in General Discussions and email me your postal details so I can send you our group stickers etc.
Re: Carburettors
« Reply #8 on: September 28, 2015, 10:22:30 PM »
I had the same problem when I rebuilt the carbs on 3131.

Followed advice from Irish Kiwi and reset the butterflys to a poofteenth instead of the thickness of a paperclip.  this made all the difference.

so yes take them off and bench set them.....again.

Eddy
Logged
"If we do what we always do then
we will never be more than we are"
Poh (Kungfoo Panda).
78E x 2
78E DJP Chair
80G (current project)
81H
81RH x 4
82P x 2

Offline Jonesy :-)

  • Hero Member
  • *****
  • Posts: 1735
Re: Carburettors
« Reply #7 on: September 28, 2015, 09:00:12 PM »
Yes
Logged
78 E Stock
78 E Stockish with spoked wheels
80 G spoked wheels and other subtle mods
81 RH problem child. Gone & forgotten
97 TRX 850
94 Yam 350 Big Bear 4 wheeler
?? Yam TTR 125 with milk crate. (RIP the Posty)

Offline lumox

  • Full Member
  • ***
  • Posts: 52
  • Welcome to the group. Now let us know a bit about you in General Discussions
Re: Carburettors
« Reply #6 on: September 28, 2015, 06:31:49 PM »
Sealed off all 4 vac nozzles on the inlet boots no difference, as soon as I hit the starter button rev’s straight to 7000. Undone the manifold clamps still no diff.

Should I now pull the carbs off and try a bench synch again?
Logged
I've been riding Yamahas since 1976. Only other bike was a Honda CB900F 1978.
last bike ridden XS1100RH 83 1995 sold the bike to fund an O/S trip. Have a XS1100E for 12 yrs and ready to restore.

Offline lumox

  • Full Member
  • ***
  • Posts: 52
  • Welcome to the group. Now let us know a bit about you in General Discussions
Re: Carburettors
« Reply #5 on: September 22, 2015, 07:43:00 PM »
OK i'll give it a go and seal off the inlets. Will get back to you with the results :o
Logged
I've been riding Yamahas since 1976. Only other bike was a Honda CB900F 1978.
last bike ridden XS1100RH 83 1995 sold the bike to fund an O/S trip. Have a XS1100E for 12 yrs and ready to restore.

Offline Christian Raith

  • Administrator
  • Hero Member
  • *****
  • Posts: 1928
  • Gender: Male
  • I Just LOVE the XS1100
    • XS1100 Australia
Re: Carburettors
« Reply #4 on: September 22, 2015, 09:35:04 AM »
Seal off all 4 vac nozzles on the inlet boots see if that helps
Logged
Mobile: +61418243503

Offline Jonesy :-)

  • Hero Member
  • *****
  • Posts: 1735
Re: Carburettors
« Reply #3 on: September 22, 2015, 09:00:24 AM »
Are the butterfly valve thingys open? with throttle completely closed the butterflys  should appear completely shut,(but there should be a poofteenth of a gap) a gap of a of a mm or more could be your problem. these are adjustable.
Logged
78 E Stock
78 E Stockish with spoked wheels
80 G spoked wheels and other subtle mods
81 RH problem child. Gone & forgotten
97 TRX 850
94 Yam 350 Big Bear 4 wheeler
?? Yam TTR 125 with milk crate. (RIP the Posty)

Offline SCARFEY

  • Hero Member
  • *****
  • Posts: 480
  • Gender: Male
Re: Carburettors
« Reply #2 on: September 21, 2015, 10:51:51 PM »
Sounds like the idle mixture may be too lean. I also like to put Injector cleaner in the tank..Put a whole bottle in you can't over treat the system


Logged
George Scarfe
Aka Scarfey

1981  Honda CBX 1000 Prolink 6 Cylinder
2003 BMW R1150 GS
2004 DR 650 Suzuki.

XS1100 GONE TO A BETTER PLACE as has the old Honda Dominator.

Offline lumox

  • Full Member
  • ***
  • Posts: 52
  • Welcome to the group. Now let us know a bit about you in General Discussions
Carburettors
« Reply #1 on: September 21, 2015, 06:52:58 PM »
Pulled the carbs off the bike. Cleaned with carb cleaner where ever I could spray. Jets removed and cleaned. Checked that the floats moved freely. Put them back together placed back on the bike. Throttle was opened and closed nice and smooth action. Started bike and instantly starts revving at 7000. Twist throttle but the revs don't decrease, adjusted the idle screw no change, pull choke open and the revs decrease down to 5000. Didn't pull the floats apart as I'm heavy handed and don't want to break the steams that hold the pin in place.
Checked the fuel and vacuum hoses to make sure they are in the correct order.

Any advice on what to do next.
Logged
I've been riding Yamahas since 1976. Only other bike was a Honda CB900F 1978.
last bike ridden XS1100RH 83 1995 sold the bike to fund an O/S trip. Have a XS1100E for 12 yrs and ready to restore.
Pages: 1   Go Up
« previous next »