Carb Removal
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Joined: Oct 2014
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From: Ottawa, ON, Canada
Carb Removal
Hey guys. I'm getting ready to remove my Mikuni carb on my Dyna for servicing. I have read that it's not necessary to remove the tank for this, contrary to what the manual states. I think I will remove the rear connection point though and pivot it up a bit. I've also read that it's easier to remove the enricher know from the left of the bike and leave it attached while removing the carb. Any comments on this? Same apparently goes for the throttle cable.
Anyways, my main question has to do with the attached pic. I am new to wrenching on Harleys and don't know what this cross piece. It connects the upper cylinders via banjo bolts and the carb mounts to a bar attached to this tube. Not sure if there is enough clearance yet to pull out the carb without removing that though. I can't seem to locate this part in the book.
Any ideas or tips?
Thanks
Don
Anyways, my main question has to do with the attached pic. I am new to wrenching on Harleys and don't know what this cross piece. It connects the upper cylinders via banjo bolts and the carb mounts to a bar attached to this tube. Not sure if there is enough clearance yet to pull out the carb without removing that though. I can't seem to locate this part in the book.
Any ideas or tips?
Thanks
Don
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Novice
Joined: Oct 2014
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From: Ottawa, ON, Canada
Okay, thanks. Btw, this tube is not attached to the carb in any way. There is a hose that goes to the bottom of the bike, I assume this is a vent hose? The flat bar you see that also connects to those 2 bolts is where the breather backing connects.
I haven't been able to locate this "engine breather" in the manual. Anyone have any ideas what the proper torque should be when reinstalling?
Thanks
Don
I haven't been able to locate this "engine breather" in the manual. Anyone have any ideas what the proper torque should be when reinstalling?
Thanks
Don
Tourer
Joined: Sep 2007
Posts: 415
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From: Northeastern Md.
The "breathers" are actually those two bolts screwing into the front and rear head,which are hollowed.This allows crankcase vapors to be routed (in your case the tubing and pieace of hose) to the atmosphere.Stock set-up the vapors are routed to the air cleaner base plate and sucked up through the carb. to be burnt.Think of it as a PCV system (which it is).As for torque,I just snug them up good-don't want to over tighten and crush the sealing washers.
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Novice
Joined: Oct 2014
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From: Ottawa, ON, Canada
That's a really good explanation. Thanks a lot. Makes sense now.
Don
Don
The "breathers" are actually those two bolts screwing into the front and rear head,which are hollowed.This allows crankcase vapors to be routed (in your case the tubing and pieace of hose) to the atmosphere.Stock set-up the vapors are routed to the air cleaner base plate and sucked up through the carb. to be burnt.Think of it as a PCV system (which it is).As for torque,I just snug them up good-don't want to over tighten and crush the sealing washers.
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