Carb reinstallation advice.

Yamaha yx600 Radian. I recently removed the carbs for cleaning. Reinstalling them was quite a hassle. It took way longer than I anticipated and was sweating bullets when it was done. The boots that were on the bike were the originals and were riddled with cracks and all the symptoms of a vacuum leak. I just bought new carb and airbox boots. (Huge shoutout to XJ4EVER by the way for having the parts in stock and inexpensive. I'd probably be SOL if it weren't for them as Radian 600 parts arnt easy to find.)

I am now going to remove the old boots and install the new ones. Is there a secret to carb reinstallation that dosnt involve just brute forcing the carbs into the boots? Or is that just of it is on a 4 cylinder? Any advice is appreciated.

Thanks guys.

 

I coat the inside of the boots with silicon grease first. It helps. You can pull the carbs into the manifold boots with ratchet straps.

 

Push either 1 or 4 in past it’s groove.
Tighten the clamp on this carb so it doesn’t pop back out when you push on the other end.
Once they’re all popped in loosen the clamp you tightened, make sure they’re all straight then tighten all the clamps. Use a lube as @Huntchuks suggested

 

When you say boots are you talking about the intakes on the motor? If you are replacing those too I think you'll find they pop into the new pliable ones easier than old dried out hard ones. A little lube works well too!

 

New boots will be ‘easy’ to pop them into

 

And warming the intakes with a heat gun or hair dryet helps too. But if you have brand new parts you likely will not have to warm them.

 

Comparing the new intake and airbox boots to the 25+ year old ones is pretty crazy. The old ones felt like plastic instead of rubber.

 

One trick, on old hard boots, it too run toweling over them and soak it with hot water from a kettle.
Bit wet but it works.
New boots no issue especially with some silicone lubricant.

 

Really? Bit of a risk of water getting injested surely?

 

+16

 

Taking them off, no issue.
Putting them in, maybe.

 

Using two well placed ratcheting straps is the way to go. Let the straps do most of the work. The above mentioned heat gun has been my go to for keeping the boots playable. With the straps, just make sure you don't pinch anything with the straps. Make sure they touch on the backs of the carbs in places that will not hurt them. Keep away from the choke mech, or anything that will bend or break. Take your time with the straps, get the best angle to let them assist you with the pressure work. Trying to get them in by hand alone will give you a good workout and test your patience. Good luck.

 

Sounds like a great plan.
I have sweated and sweared many, many times at re-installing the carbs (pre getting new boots).
Definitely an excercise in patience and pressure without an external force being involved.

One thing that got me a few times, since I've pulled mine so damn often now, is the linkage hanging down and being impossible to bring back to the top without pulling the carbs again... just a FYI, keep an eye on that cable linkage.

 

Can you fit the cable to the linkage before lining them up with the inlet stubs. Might be easier that way.

 

I just flip it up and out of the way. It flops in far enough. If I’m working on a 550, then I install the stub cable, and tie it up with a rubber band

 

Make sure the air box is loosened up and pushed back as far as you can get it.

 

I put the straps low, pulls in the bottom "lip" . sit on bike and lift rack up and forward.

 

Heat gun and Vaseline or smear of oil are your two best friends

 

That looks great. If you wanted to take off the chrome covers off the tops, you could also go there as well. Ratchet straps really help.