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I just finished cleaning my carbs, and realized my Intake Manifold Boots were cracked, letting air in and messing up the air-fuel mixture. Here's what I did, hopefully some of you can either learn from my experimenting, or tell me I screwed up :help:

To check whether or not they are letting air though, you can spray starting fluid on them with the bike running, and if the RPMs go up, you're sucking air in.

Instead of buying OEM ones from eBay for $30 (right here), I bought gasket maker from Permatex for $10. Make sure it's gasoline resistant, and that it's non-hardening.

20170917_190710.jpg

Finally after about 30 minutes, the gasket maker dried up, I wrapped each one up with Black electrical tape (now it's black again) and voila! Runs a lot richer now :righton:

Lemme know what you guys think!
 

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2003 zr-7s
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I also used the permatex.....but it didn't work properly. So I used heavy duty glue, then shrink tape, heated it up. Let it cool and Now I don't have any air coming in. ;-)
 

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I've done similar on another bike. I took the carb holder in the house and scrubbed it
down good in the kitchen sink using liquid dish soap and a toothbrush.
This gets them really clean and removes any oil deposits, then when dry I final cleaned it with isopropyl alcohol.
Then I coated them with Permitex high temperature silicone sealant. (The gold tube).
It's been 7or 8 years and it's still holding fine.
 
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