While it's running, you can gently pull-up on that left carb cable to get an idea of how well the left side is pulling...
-
Enjoy XS650.com? Consider making a donation to help support the site.
XS650.com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going.
Please!! help me get my bike running for the build off trip!!!
- Thread starter jonboy-xsbobber
- Start date
-
- Tags
- carburetors engine
jonboy-xsbobber
XS650 Addict
I took the bowl plug off and turned the fuel on and it came out with no problem
jonboy-xsbobber
XS650 Addict
Too many net crashes out here, switched over to stupidphone.
Yeah, that left plug doesn't look good. Odd that the blackness is splotchy, not uniform.
To be absolutely clear about carbs, you could temporarily switch them.
Otherwise, I'm thinking about some sort of oil fouling, perhaps from intake valve guide seal or weeping headgasket...
Yeah, that left plug doesn't look good. Odd that the blackness is splotchy, not uniform.
To be absolutely clear about carbs, you could temporarily switch them.
Otherwise, I'm thinking about some sort of oil fouling, perhaps from intake valve guide seal or weeping headgasket...
jonboy-xsbobber
XS650 Addict
Alright I will switch the carbs and see what happens
You have good compression in both cylinders and they are even so thats good.
I'm thinking the right plug looks too lightly coloured.... like its running very weak in that cylinder. The fact that it runs better with the choke on would seem to confirm that .
On the right carb if you make a careful note of where the pilot screw is and then turn it in gently until it stops and tell us how many turns it takes . Then put it back to where it was. I'm guessing you'll need to adjust the pilot screws out a bit
I'm thinking the right plug looks too lightly coloured.... like its running very weak in that cylinder. The fact that it runs better with the choke on would seem to confirm that .
On the right carb if you make a careful note of where the pilot screw is and then turn it in gently until it stops and tell us how many turns it takes . Then put it back to where it was. I'm guessing you'll need to adjust the pilot screws out a bit
jonboy-xsbobber
XS650 Addict
The right cylinder is the only one that runs strong it's the left I am having trouble with
jonboy-xsbobber
XS650 Addict
Ok so I think it's a carb issue I switch out the carbs and the miss and backfire now moved to the right
it may run strong but that has very little to do with the idle settings .
If your right cylinder is running on a weak mixture which it seems to be then that will impact your left cylinder ,if that one is struggling to fire properly due to oil fouling .
I appreciate that you might not see the relationship but you cannot just look at the left cylinder in isolation .
If your right cylinder is running on a weak mixture which it seems to be then that will impact your left cylinder ,if that one is struggling to fire properly due to oil fouling .
I appreciate that you might not see the relationship but you cannot just look at the left cylinder in isolation .
it may run strong but that has very little to do with the idle settings .
If your right cylinder is running on a weak mixture which it seems to be then that will impact your left cylinder ,if that one is struggling to fire properly due to oil fouling .
I appreciate that you might not see the relationship but you cannot just look at the left cylinder in isolation .
ok good thats confirmation.
How is the left cylinder running with the carbs swopped over ?Looks like you're going to need to do a carb strip and clean careful setting up
jonboy-xsbobber
XS650 Addict
It's seems to be running just like the right was before the swap
And I do appreciate all the help I am new and this and have not one clue about tuning carbs I have some one I was going to have tune them and rejet if needed but I didnt want to go down that road if it was something else
And I do appreciate all the help I am new and this and have not one clue about tuning carbs I have some one I was going to have tune them and rejet if needed but I didnt want to go down that road if it was something else
jonboy-xsbobber
XS650 Addict
I don't know if this makes a difference but the plugs had maybe a mile on them they were new
Well, problem moved with the carbs is a good sign. Yes, clean and inspect. Also ensure that each has its own proper left or right parts. Don't want 2 right slides, for example.
www.amckayltd.com/VM34-36.pdf
http://www.xs650.com/forum/showthread.php?t=6570
www.amckayltd.com/VM34-36.pdf
http://www.xs650.com/forum/showthread.php?t=6570
jonboy-xsbobber
XS650 Addict
I think it has the proper right and left carbs the idle screws both face out if they are on the correct side
Updated post #33, added links.
Check the slides. Ensure that the cutout faces to the rear...
Check the slides. Ensure that the cutout faces to the rear...
jonboy-xsbobber
XS650 Addict
Hmmmm. That doesn't look right. Have a look in these:
http://www.xs650.com/forum/showthread.php?t=6570
http://www.xs650.com/forum/showthread.php?t=31346
http://www.xs650.com/forum/showthread.php?t=6570
http://www.xs650.com/forum/showthread.php?t=31346
jonboy-xsbobber
XS650 Addict
Ok, that looks better. Should be a number stamped in the bottom of the slide, like 2.0 or 2.5, that identifies the cutaway value. Make sure both values are the same, but each slide is a mirror-image of the other...
jonboy-xsbobber
XS650 Addict
Where should I go to buy a guide for these carbs?
And thanks again for all the help
And thanks again for all the help
