Mounting xs650 carbs

shade

shade

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Hi
I am sure this has been covered before but I can't seem to find anything. I cannot seem to get the carbs back onto the bike. I had them in place earlier but can't get them to fit past the frame to get into the mounting position. Any suggestions?
Are the carbs supposed to be mounted with the boots on, or are the boots supposed to be mounted to the engine and the mount the carbs to the boots.
Thanks
 
The carb boots can be mounted first. This allows you to torque the mounting screws evenly (to 80 in/lbs). You can't get at the inner mounting screws with a torque wrench once the carbs are in. Remove the top butterfly shaped bracket from the carb set. Remove the large acorn nut cover on the cam chain adjuster. This should give you enough room to wiggle the carb set in. It's still a case of twisting and turning them just right but they will go in.
 
yeah, this is tricky. I fight my carbs every time I get them in/out. Its just a matter of not getting so frustrated you blow a gasket and kick the dog. they came out, they will go back in. Be patient.
Another idea it to take off the left side cover so the clutch cable is out the way.
Once I got hung up on it, but I couldn't figure out what was happening. took a break, came back ten minutes later, and noticed the clutch cable was hung up in the throttle shaft area. I was trying to take it out from the right side of the bike, so I couldn't see what the hell was going on. Had it out in a jiff after that.
 
Removing the top bracket was a big help. Got them back on thanks.
It's back has been sitting for many, many, many years so its going to be a project. Just got a cb550 going that was in worse shape so hope I can do it. I have very little experience, so will start a new thread with many questions.
Thanks for the help!
 
I'm having trouble slipping my BS38s in a new set of rubber boots already on my bike. I'm thinking about lightly lubing them up with WD-40. Any thoughts on this? I bought a set of Biltwell rubber handlebar grips, and they suggest using WD-40 to install the grips because not only does it let them slide on easily, but once it dries, it forms a better grip on the handlebar. Thought this same concept might work with the carbs in the carb boots although I know a lot of people don't like using petroleum products on rubber because it will deteriorate it over time... can't see how a little spritz would hurt though
 
The best thing to use is dielectric grease, which is silicone grease. It will allow the carbs to slip into the boots very easily, and allow them to be removed easily the next time. It keeps rubber soft and flexible. I use it for the diaphragms on my CV carbs also.
Its also good to put on car sunroof seals and door seals.
 
Without the stock air box supporting the carbs at the rear, It becomes more important to use the intake flanges and clamps to hold the carbs on. Therefore I now stay away from intake lube on my bike which does not have an air box. In that case I recommend soapy water in the intake flanges. I do still grease my handgrips (kiddin)
 

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