Carb boots

moosehead

New member
Any way to check for cracks in these without removing them? I heard spraying them with wd 40 during idle works to see if any changes occur. Also, does spraying these with oil help with longevity?
 

xcr440

Well-known member
What sled? You can remove the air box, and try moving/wiggling the carbs, looking for cracks in the boot. Other than that, you can use starting fluid spraying the boot area, it will cause the idle to noticably increase.
 

moosehead

New member
What sled? You can remove the air box, and try moving/wiggling the carbs, looking for cracks in the boot. Other than that, you can use starting fluid spraying the boot area, it will cause the idle to noticably increase.

It's a 2003 mxz 500
 
If you plan to keep this unit, I would just swap them out and to heck with testing them. Carb boots are like $20. I replaced some years back on my wife's new to her-1994 Jag Z. Took me all of ten minutes and some dirty hands. Oh well!
 

moosehead

New member
If you plan to keep this unit, I would just swap them out and to heck with testing them. Carb boots are like $20. I replaced some years back on my wife's new to her-1994 Jag Z. Took me all of ten minutes and some dirty hands. Oh well!


I may do that...I thought they were much more expensive than that because the reeds were built right in them. Not sure though as I've never had them off before.
 

dognvenus

Member
I just did mine on 2 of our sleds. 10 yrs, thought it was a good time to replace them also change water pump belt for a little piece of mind.

I used a little engine assembly grease on the inside of the boots to help getting them on and to also help with keep the the rubber from drying out and a good seal.

Dog
 

russholio

Well-known member
If you plan on keeping it.....replace them with Boyesen Rage Cages and never look back. The bulk of the assembly is aluminum, with only a small portion of it being rubber (connects the Rage Cage to the air box). If that connector should deteriorate, it's easily replaced without removing the whole assembly. And I think, though I'm not certain, that you can replace the reeds without replacing the whole assembly (which I don't think is the case with OEM).
 

longtrack

Member
Years ago I cleaned mine and used Silicone Adhesive on them. After I smeared them full of the Adhesive I never had a problem. I know it sounds like using haywire on them but its very expensive to replace them and if there not leaking yet the Silicone will seal the cracks and hold them together.
 
If you plan on keeping it.....replace them with Boyesen Rage Cages and never look back. The bulk of the assembly is aluminum, with only a small portion of it being rubber (connects the Rage Cage to the air box). If that connector should deteriorate, it's easily replaced without removing the whole assembly. And I think, though I'm not certain, that you can replace the reeds without replacing the whole assembly (which I don't think is the case with OEM).

X2 on that. I went with Vforce on my rev. Also they crack from the inside out you have to take them off to inspect. mine were leaking at the bolt holes from so much interior rotting. Thats why it doesnt pay to put an inferior part back on. upgrade.
 
Top