Help wanted with carbs on xv1100 1991

**Theantidote** · 19th May 2013, 11:45

Originally Posted by cmoore

hi, had another look and realised this is the 91...with the Mikuni carbs, mine has the Hitachi, i did however find this thread if it helps

http://www.advrider.com/forums/showthread.php?t=347184

hei man thanks heaps for that...pretty much what i've been searching for...that'll help heaps when i finally get the courage to strip her down...

i'm picking she's a bit gunked...but i maybe wrong
thanks again (i booked marked it and will have printout on hand when i do it)

**Drew** · 19th May 2013, 15:19

Oh you poor bastard. I've dealt with those carbs before, and hated every second of it. Found that they were not opening at the same time,so essentially one was fueled differently to the other.

Symptoms were as you describe, because one is getting fuel that the other isn't, and having to work harder.

I seem to recall that they are linkage operated. Not sure if I ever sorted the issue out, or how I did it if I did.

Good luck.

**cmoore** · 19th May 2013, 15:28

Hi, no worries, just hope it helps, I have a (Home made) manometer when your ready to balance them, worked well with mine. On the carbs, just be very very careful when taking apart that you keep the parts of each carb together. Especially with these as the rear is jetted different to the front as some way of keeping the rear cylinder cool...

**cmoore** · 19th May 2013, 15:53

here is another really useful site..(not carbs)..http://www.ravensroads.com/tech/

**kevie** · 19th May 2013, 18:53

I have the Haynes service and repair manual on the Yamaha XV's 1981 through to 1986 covering the XV535 through to the 1100.

You're welcome to borrow it if you wish, my 750 has the Hitachi carbs on it and i have just received recently new diaphragms from USA so in process of refitting the carbs.

**Theantidote** · 20th May 2013, 21:17

Originally Posted by Drew

Oh you poor bastard. I've dealt with those carbs before, and hated every second of it. Found that they were not opening at the same time,so essentially one was fueled differently to the other.

Symptoms were as you describe, because one is getting fuel that the other isn't, and having to work harder.

I seem to recall that they are linkage operated. Not sure if I ever sorted the issue out, or how I did it if I did.

Good luck.

thanks man...i'll let yall know how i get on....

**Theantidote** · 20th May 2013, 21:20

Originally Posted by kevie

I have the Haynes service and repair manual on the Yamaha XV's 1981 through to 1986 covering the XV535 through to the 1100.

You're welcome to borrow it if you wish, my 750 has the Hitachi carbs on it and i have just received recently new diaphragms from USA so in process of refitting the carbs.

chur bro...i have the clymer book that covers 91s...just no balls to start feking with my baby alone

**Theantidote** · 20th May 2013, 21:21

Originally Posted by cmoore

here is another really useful site..(not carbs)..http://www.ravensroads.com/tech/

thanks man

**Theantidote** · 22nd May 2013, 20:41

peeled me tank bak to get a better look n saw a loose tube miles away from where it should be...will look it up, werk out what it does and x my fingers...
also notice fuel smell on air filter...wats up with that?
will update u b4 weekend

**Theantidote** · 8th June 2013, 16:40

I thought i had it sussed...should have guessed that it wouldn't be so easy...the pipe i found seemed to make some difference initially with a big blue flame out the rear exhaust as she coughed into new life...

But today took a ride to Botany via the back roads of Whitford and I was sure we were sweet. Stopped in Botany (the honda shop - great trademe deal). Thought I'd take a look at a shop not far away so jump on me scoot and 2 doors later parked up for 10 minutes. Leaving that place all my demons came back to fek with me all at once. Throttle to take off and she coughs and farts and threatens to stall out before i get across the road...and then for the next 10 to 20 minutes at suburban street speeds i thought she was going to die big time...get on to motorway to head home and WOT was more like NOT...over take a wee van thinking she'd cleared up so open her up and freakin' 'ell she almost stalled out in front of a truck...bollocks.
Get to approx Manukau and she's good as gold...open her up and she'll love you long time...

just got back from a beautiful ride out to Kaiaua and the big loop with no probs but i'm still freakin' out about what's up with my baby...so long story long...
I think i need to pull down the carbs' eh???? What do you guy's reckon...pull them down myself or pay my mates at the local to do it????

**nzspokes** · 8th June 2013, 17:19

You carb job and check tank breathers etc.

**Theantidote** · 8th June 2013, 18:29

After much more research on the net i'm freaking out that this may be a bigger operation than my leatherman can handle...so i think i'll leave it to mr.george from the mobile motorcycle mechanix place...just need to book it in...hope it works

**doc** · 8th June 2013, 18:36

CHECK out KJS on the net or on KB , he made a single manifold that uses a HD cv carb sorted out all my probs. They are an awesome bike just stick with it.

**Theantidote** · 8th June 2013, 19:45

Originally Posted by doc

CHECK out KJS on the net or on KB , he made a single manifold that uses a HD cv carb sorted out all my probs. They are an awesome bike just stick with it.

Yeah lovin the bike just not the drama's...rather save those for important things in life...i'll have a look, did it really work???
cheers man