All 2st Cracked carb boot.

A fellow rider pointed out what he thought was a crack in my carb boot last week when he was looking at my Lectron. I thought it was just a casting line and dismissed it. I took the carb off to adjust the rod and what do you know, there is a crack. Heck, there are 3 of them. One on each side and one at the bottom. They don't appear to be all the way through, yet. It's a 11 WR300 bought as a left over last year. I ride like I have a mangina and don't ride as much as I would like, shouldn't they last longer than this? Is there a better alternative than the Husky part?

Shoe goo makes a good temporary fix while you're waiting to get a new one

Mine has cracks also but they seem to be on the surface.

You might try coating it with Liquid Tape to seal the cracks.

I have a 2013 wr 250 and from day 1 it never looked good. My guess is they made a bunch of them years back and just keep on bolting them on new bikes. I will have to check my inside now. It looks horrible on the outside.

Same think on our 2010 CR150, it looks like a weather checked tire.

Well, it's disappointing to hear I'm not the only one with the issue. I'll coat it with something and keep an eye on it. I wish there was an alternative from another manufacturer. I saw a boot on Ebay for a Honda CR250 and in the description, the seller said he tried it on a Husky WR250, but it bend was a little different and the carb hit the cases. I sent him a message and he said he tried one from an ATC 250R also and it didn't work either.

My first Husky was a 1979 250 OR. That's it in my profile pic. I remember it had a crack in the carb boot that went all the way through. I discovered it after closing the throttle and pulling in the clutch after a hard acceleration, and instead of idling down, it sucked air in through the crack, and must have drawn fuel through the choke or something because it would idle up. Replaced the boot and never had another problem.

That would be me. The problem finding a new manifold is that the Husky unit goes up then levels off. The Honda ones I tried just sort of go straight out.

Small world. Thanks for that info. There must be an issue with the composition of the rubber used. I've seen 20 year old bikes without cracks in the boots.

Rubber failure can be catastrophic.

Take the boot off and check it on the inside. Bend it and flex it like it will never see in real-world use. I've seen pleanty of surface cracks that are still airtight. My OEM 76 RD400 boots look like hell but are still airtight. On the other hand, I replace SCADS of skidoo (BRP) and Polaris manifolds that de-laminate from the metal clamping base in a few short years. Rubber quality and the production process ain't what it used to be. Thanks, China and skinflint businessmen.