Carb cleaners?

[Oli1200]

Will spraying carb cleaner into the mouth of the carb as the bike is idling safe for the insides of the CV? Bought a $5.00 can of "Gunk Carb medic" carb cleaner today and wanted to check first. It just says to spray into the mouth of the carb for about a minute with the motor up to temp and shut it off for about 10 minutes then fire it back up.

[arthureld]

I'm no expert but I don't think it will hurt it.

[junior]

won't hurt- to a point. don't get too much in there- especially on a hot engine as the unburned carb cleaner could pre-ignite on a hot engine when you crank it back up. sometimes what i do is back out the pilot screw all the way on a cold engine, stick the spray nozzle up there and spritz it, then put the screw back in the same place. if there is a low/mid speed stumble or poor idle that often helps. an "old timer" alternative is to take off the air cleaner cover, rev the engine to about 2000/2500 then momentarily cover the carb throat while wicking the throttle a bit. pull your hand off and let it recover then do it again. i've cleared a problem out doing that once or twice...

j

[Oli1200]

won't hurt- to a point. don't get too much in there- especially on a hot engine as the unburned carb cleaner could pre-ignite on a hot engine when you crank it back up. sometimes what i do is back out the pilot screw all the way on a cold engine, stick the spray nozzle up there and spritz it, then put the screw back in the same place. if there is a low/mid speed stumble or poor idle that often helps. an "old timer" alternative is to take off the air cleaner cover, rev the engine to about 2000/2500 then momentarily cover the carb throat while wicking the throttle a bit. pull your hand off and let it recover then do it again. i've cleared a problem out doing that once or twice...

j

Interesting, cool, thanks.

[GenShovel]

Do what you like but, a CV carb is really easy to take apart and clean. I don't know of an easier carb to work on outside of an S&S (which is stupid simple). Just take your time and have a nice clean area to work in ( the size of 2 shop rags is more than enough). A can of B-12 carb cleaner, 20 min rebuild time for a first timer (not including removal and installation) and you back up an running with a wistle clean gas throat. If you've ever rebuilt a GM Quadrajet (Quadra-junk) in Shop Class you are WAY ahead of the game. One last little trick is to take picture before and during the deconstruction incase you forget where something goes.
You can do it!