She's running great 8000 rpm and blah blah blah

What in god's name could separate the carbs from the rubber intake boots while the bike is running on the road. Is this common??? By the way the rubber manifolds are new replaced last year by pro-machenic. the bike is a 83 kawi csr 650,with pods and mac header.
Just a side note I can honestly say I love this bike. I also owned a 77 GS550 beat the piss out of it and never ran into this problem.

Were the carbs supported by something other than jsut the intake boots with those pod filters on there?
If not, then yes it is common for the carbs to pop off with lots of heat and vibration and nothing holding them up/in towards the boots - seen it before.

I have never seen it or experienced it, but I suppose it could happen under the right conditions. There is no harm in supporting the carbs from the frame.

The carbs were intended to be supported fore and aft. If you removed the airbox boots the carbs are just hanging by the carb holders out front like a hammock attached to only one tree. Every bump and vibration bounces them up and down a little until something gives. Your "pro-mechanic" probably should have mentioned this or added some support. Ed

I had the carbs pop out of the boots once but that was after it landed after standing it straight up after taking off too aggressively. :whistle: But that was the only time I have ever had it happen.

Note to self, add some sort of safety line to the carb manifold ... certainly don't want mine falling off and landing on the road!

otakar wrote: I have never seen it or experienced it, but I suppose it could happen under the right conditions. There is no harm in supporting the carbs from the frame.

+1 Not an issue for me either but the two throttle cables don't have a lot of slack in them so maybe I'm getting some benefit from that... or maybe the heavy turning of the right wrist is causing so much suction from the engine they just can't move away! :laugh: Yeah, that and maybe they are actually getting closer to the engine... I like that idea and sticking with it!


Seriously now you have me concerned... :pinch:

csrjoe wrote: What...could separate the carbs from the rubber intake boots while the bike is running on the road. Is this common??? By the way the rubber manifolds are new replaced last year by pro-machenic. the bike is a 83 kawi csr 650,with pods and mac header....

:huh: I interpret this to mean carbs are separating from the air box hoses, referred to as rubber intake boots, and not meaning carbs are separating from the carb holders, referred to as rubber manifolds.

Good Fortune!

very good idea I'm sure this could be a possible solution. After looking it over again I notice going left to right while sitting on the bike. Carb 1# is separated from manifold more the 2# but 3 and 4 are still on. It almost looks like one side had been move back. Anyway How do you put these puppy's back, does warming them up with a hair dryer work to soft-in the rubber to accept the carbs again.

What I'm speaking of is the rubber in between the engine and the carbs. No airbox on the bike just aftermarket cones, also check my manual and it says nothing about this, for installation purposes. Thanks guys for amy respones.

With clamps loosened, carbs should be pushed fully into the carb holders.

Sometimes a wooden stake may be employed as a lever at rear of carbs to persuade them fully into position.

Then re-tighten the clamps.

Before re-installing the carbs, it's usually helpful to spray WD40 (or Armoral, silicone, whatever) onto inside of the carb holders as a "lube" to aid sliding the carbs fully into position inside the holders.

Good Fortune!

Sounds like the carbs were not properly installed and or the clamps not tightened properly
The rubber is not real soft and pliable, it is more of a plug and socket connection to the carb snout and if it is not fully seated, the clamp will not tighten down correctly to hold carb in place.
The clue to this is your description of carb 1 and 2 being further out of place than 3 and 4.
as all 4 carbs are connected into one unit,unless they were installed like that, it would be tough for them to back out of position in that manner.

To reinstall make sure everything is disconnected from them carb assembly, ie throttle cables, fuel line,vent lines, anything that could put a side load on the assembly no matter how small it might seem.
Have filter pods removed to allow use of a 2x4 the width of the (4) carbs Use another 2x4 as a pry bar between carb inlet covering 2x4 and the frame in the area that the air box use to occupy.Should be able to "pop" the carb assembly in place evenly,visually verify this before tightening the clamps.
Then re-install everything that hooks up to the carbs.

I suppose some support to the frame couldn't hurt ,but it should be rubber mounted,there's a reason the carb holders and air box boots are made from rubber.
I've never seen a need for this though in over 30yrs of working on these bikes.
Good Luck
EZ