Carby Sync Issues.

[beemeerr11]

Hey Jeff,

Nothing Kinky here,  but boy I'm looking forward to that hurt 

Lou
81RH

[excess.11]

Lou , thats what i m talking about......get them running right....and there s nothing like it.....
Incentive for Maksy and others i hope..........
Don t forget to colourtune and rebalance the carbs..........if you have nt already.....
Because...thats when your face really starts to hurt..........from the permanent smile ........

[beemeerr11]

Update,

The bike is running from the right fuel tap, by passing the octapus at this stage, left tap disconnected, coil replaced for #2 and #3, spark plug caps replaced, dealer doesn't want any money at this stage, rather for me to take the bike and ride it and return it in a couple of weeks after racking up some descent K's and seeing if the bike gives further trouble, when I return it (hopefully after running O.K.) then hooking up to the octapus and the left fuel tap. When I left the bike shop it's about 400 meters to a main HWY so I shot up there for about 10 k's and the bike felt sweet comming back home it idoled as it should at every stop, it is the best it has run in the 3 years I've owned the bike. Fingers crossed and I'll keep you all posted.

I also really appreciate all the comments and feedback
Cheers
Lou81RH   

[beemeerr11]

Guy's here is the latest update, on Monday I couldn't get the bike to start, damn think was backfiring like a shotgun, after several jump starts the bike ran for about two minutes then blew the main fuse, on Tuesday morning I took the bike back to the bike shop, I turned up on Tuesday afternnon about 5:30 and they had my bike running perfectly, the octapus was by passed and they put another coil on cylinders 1 & 2 and were looking at the other on 3 & 4.
The bike wasn't ready, so I'm picking it up today when they call. I'll give you all an update when I find out, fingers crossed.

Lou
81RH

[excess.11]

Lou , can you confirm that the vac take off on carby #2 is working as it should and providing good vacuum?

Another thought would be to check the 2 allen head screws for the carby holder to the head are tight and if there are any gaskets in place they are not letting air leak past.
Check the carby holders are in good order......no cracks that may open up as the motor is revved.

I would like to eliminate any chances of air leakage ....which may result in uneven and erratic vacuum.
Have you checked the # 2 carby holder via removal and inspection ?

While your at it.....check all 4 vac take off points on the carby holders and see if...........
Any blind plugs or connected hoses have nt  gone hard ......and/ or / are .......a loose fit.

[excess.11]

One thing i m thinking.......is........ Lou reports the bike runs as it should.........when he gets vacuum via the carby holder port................albeit the timing jumps around a bit due to the "non restricted vacuum".......and not being in the correct vac take off .
Could there be an isssue with the correct take off on the carby ?
Not getting enough vacuum or is restricted partially?
I m assuming Lou has the timing correct .

[petejw1966]

. My other concern is that when I disconnected the hose from the inlet manafold the whole brass pipe (the hose connects onto ) pulled out?

A: What part of Carby #2 relies on the vacum line working properly?

B: Could this mean that there is a timinig issue? What  process of eleimenation is left?

C: Have I overlooked something in the octapus?

Lou
81RH

hey lou,
the butterlfy on the carby, as it opens it gradually
uncovers the ported hole allowing for vaccuum,
have u checked ur timing? its not retarded is it?
the books says set it at 5 degrees, i set the 80 standard at 10 degrees
as long as it doesnt ping then that would be sweet.
i hate that octopus and have always removed it.
u sure u have fixed the leaky carbs and its not the octopus/
petcock preventing the fuel flow when its stopped?  a faulty
needle and seat or float can cause the bike to run rich
especially at idle.


jeff, from memory the early and later carbs both have the nipple
on the number 2 carb to attach the vac hose too.

[excess.11]

Maksy.....here s some references for you off our own site as well as the UK site.
I do recall seeing a line drawing somewhere relating to that.
I ll keep looking for you.....unless someone else helps out on that one.

http://xs1100.com.au/forum/index.php?topic=174.0

Ohhhh...silly me.....the line drawing is on page one of that topics postings.......

[makzy]

I,m with you Beemer, can take a set of carbs off blindfolded now, but i've had enough!!! time to move on i think!!

[excess.11]

Lou , the following is a test for the pick up coils behind the vac unit.
Whilst reading the measurements on each coil as described.......hand move the vac advance unit back and forth to see if there is an intermittent break in these wires.

On the schematic.....the ignition pick up coils are shown on the bottom right....next to the neutral switch.Click the zoom on the top right corner.......then use the zoom slider on the bottom right.
Get back to me with the results and resistance readings.

Schematic courtesy of a previous post by....... melbXS........ Brian.
Continuity is one test..........but it s the resistance scale and test that will show up bad coils  or faulty connections on connector blocks or  joins.
Set your meter to Ohms and  on a suitable scale.......... if it s not an Autoranging Digital Multimeter.
Pull the 4 terminal connector off the TCI Unit and test there.
Test between the top terminals Y/R AND Y/G...you should get 670 ohms to 720 ohms or .67 K to .72 K depending on what scale you are using .
Approximately the same readings should be obtained between the remaining bottom two wires ...W/R AND W/G.
If you don t get any reasonable readings then use the continuity test between the connectors and coil on the same colour wire between different points to see if there is a broken wire / dirty or loose terminal connection or a break or bad solder joint depending on how it was repaired.

 https://picasaweb.google.com/lh/photo/J2P9kwRS8OVji2rNqAwyCQRkeHJlkZEcgq3w32GDBW0?feat=directlink

[excess.11]

Lou , next, we have to make sure there is vacuum coming.......... " from"......the carby.........and is it strong enough to operate the advance properly through the rev range..

[beemeerr11]

Reading through your previous posts on this topic.....i see you have had fuel leaking from the carbs..........if this hasn t been found/fixed.........this could also provide issues.

Where fuel is leaking out.............air is leaking in.

Has this been fixed ?

Yep Sorted

Lou

[beemeerr11]

I tend to agree with you there has been a process of elimenation in what we have done today,  as it is now proven that the bike WILL idol. The #2 plug that came out with the thread issue is not an issue, (as the bike was idoling/reving as it should when the vacum was advanced)  I did the VAC test and it holds it all in place till I let go. My other concern is that when I disconnected the hose from the inlet manafold the whole brass pipe (the hose connects onto ) pulled out?

A: What part of Carby #2 relies on the vacum line working properly?

B: Could this mean that there is a timinig issue? What  process of eleimenation is left?

C: Have I overlooked something in the octapus?

Lou
81RH

[excess.11]

Reading through your previous posts on this topic.....i see you have had fuel leaking from the carbs..........if this hasn t been found/fixed.........this could also provide issues.

Where fuel is leaking out.............air is leaking in.

Has this been fixed ?

[excess.11]

Lou......we also need to test the vac from the carby is working as it should.
The fact that the bike overcame some of the problems when we increased vacuum by switching the hose.......may point  to an issue of not enough vacuum from the carby where the hose attaches.

This will need to be checked as well.

You could start the bike.....then pinch closed the vac hose to see if there is any difference...or remove the hose from the vac unit and try to feel if there is vacuum by holding your finger on the end of the hose.