Carb boot struggle

[millsmobile]

I've got brand new carb boots and can't get #2 and #3 to seat properly. The old ones were a pain too, but this is ridiculous. I checked that all the carbs are even, and the boots look even when the carbs aren't on, but I can't get them to seat when #1 and #4 are all the way in. I've currently got a ratchet strap on them and that alleviated some frustration but even clamped tight they won't seat. Any tips for this process?

 

[millsmobile]

Better view of 1&2.

 

[plantguy]

There are different part #"s for the boots.I bought a set of aftermarket boots and I never got them work so I ended up replacing them with the big dollar OEM boots.
I used WD 40 on the boots and make sure those clamps are out the, even remove them completely prior to install.

 

[brettp]

Fair point. Where did you get the boots?

 

[kirky]

get rid of the big clips/ clamps , use a heat gun to soften the boots and if you turn them a little bit you will find they will fit ok. i had a problem with genuine japanese boots and ended up elongating the air box bracket fastening hole , then i had to take the carbs off again and took my time and used the proper clips and they all worked as they should. those juby clips need throwing over your shoulder or putting on a 4x4

 

[Loose Chain]

Start over. Take your time. Take the carbs off again. Remove all the clamps. Confirm you have the correct boot on each cylinder. Put a straight edge across the 4 boots to confirm the boots are all rotated correctly. Lube them up and try again. Do not use those clamps. Buy the correct type clamps for the bike. Install the correct clamps "After" everything is fitted properly. Put the clamps you have been using in a place where they will never be near a bike again.

 

[plantguy]

Fair point. Where did you get the boots?

NOS, e bay.

 

[millsmobile]

Thanks guys, will get proper clips next time around. These are generic boots from 4into1. They came in numbered bags but sure look the same to me lol. I swapped 1&2, and 3&4. It seems like tightening them compressed the rubber and made them longer, started over and went bit by bit tightening and they are all snug. What a pain lol.

 

[plantguy]

Ron Ayers can still get them and everything else you need. I use 4 into 1 but things like ignition, brakes, carb I realy try to stay with OEM if possible.

https://www.ronayers.com/oemparts/a/hon/506f7b95f8700229747b8517/cylinder-head

 

[mrtwowheel]

In your picture..........#1 doesn't look seated, it should butt up tight against the molded flanges of the carb. Looks like it should go more than 1/4" yet.

 

[millsmobile]

Ron Ayers can still get them and everything else you need. I use 4 into 1 but things like ignition, brakes, carb I realy try to stay with OEM if possible.

https://www.ronayers.com/oemparts/a/hon/506f7b95f8700229747b8517/cylinder-head

Thanks for the tip I've got new clamps on the way, hadn't seen that site before.

Seems like it wouldn't be a bad idea to also support the carbs somehow so all the weight isn't on the rubber. Anyone do this?

 

[brettp]

Your air box will have a female end that a bolt goes into after going through the frame first. That helps hold the carbs up, too.

 

[millsmobile]

Your air box will have a female end that a bolt goes into after going through the frame first. That helps hold the carbs up, too.

There's no air box.

 

[brettp]

Pods?

 

[millsmobile]

Yep it's got pods.

 

[brettp]

Should definitely make something, in that case.

 

[plantguy]

I have CR carbs with pods on both my 750 and 900 and have never needed anything other than the boots as carb support. Just my experience.

 

[brettp]

Are those DOHC engines with SOHC carbs?

 

[plantguy]

Are those DOHC engines with SOHC carbs?

No, CR special. Expensive yes, but one of the best mods you can do to these bikes.

https://www.keihin-fcr.com/index.php?route=product/product&product_id=605

 

[Nylundarn]

No, CR special. Expensive yes, but one of the best mods you can do to these bikes.

https://www.keihin-fcr.com/index.php?route=product/product&product_id=605

I have been drooling over those for a long time... can you describe the benefits on your 750?