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General Category >> Rubber Side Down! >> Carb/injector cleaner will work on cleaning Carb?
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Message started by kylejang on 01/05/18 at 17:40:25

Title: Carb/injector cleaner will work on cleaning Carb?
Post by kylejang on 01/05/18 at 17:40:25

Hi There. Happy new year for everyone and thank you in advance for reading my question and honest your opinions.
My 08 S40(I just bought last month and I don't know service history) is backfiring when I rev up at idle(not driving) when I went for safety test, mechanic told me I should clean up Carburetor.
I can clean up Carburetor but I am thinking about something else shortcut way. Is it work if I drain gas from gas tank pour carb/injector cleaner (it is not gas additive) run engine? Do you think it will clean up deposit or gunk? Normally I used this carb/injector cleaner for cars which I directly connect to fuel injector after disengage fuel pump. Please let me know what are you thinking thank you.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by alisonsup on 01/05/18 at 18:52:33

It’ll be easier to just pull the carb and clean it. At least if you pull the carb you’ll know it will have a thorough clean. Carb cleaner is less than $2 at Walmart.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by Yoshi on 01/05/18 at 21:16:03

Using carb cleaner is a hit or miss, you can try pouring it in and going for a ride but it may not work. I have never been lucky with gas additives.
Pulling the float of the carb is real easy on the savage, id do that then pull the pilot and main and clean them with carb cleaner spray.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by batman on 01/05/18 at 22:35:13

I'd brake down ,pull and clean the carb properly. injector cleaner might damage the rubber parts /gaskets in the carb ,some of which can be purchased , others can't . Doing it right once takes less time than doing it half way many times and you get to know your bike better.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by Dave on 01/06/18 at 03:28:05

What exhaust and air cleaner are you running?

If the backfire occurs when you open the throttle quickly and build up revs.....then let the throttle slam shut - get used to it, as it will always do that (and there really isn't any reason to do that with your engine....be kinder/gentler with how you open and close the throttle and the Savage engine will respond much better). The Savage engine doesn't respond well to rough treatment. When you close the throttle you are shutting off the fuel flow and a lean mixture is entering the engine....and the mixture is so lean the spark plug will not ignite the mixture. As the engine slows down and the high vacuum stops pulling an excess amount of air through the carb....the engine will again begin to run and it will ignite all the unburned fuel/air mixture in the exhaust system and you will get a loud pop/bang in the exhaust. If your engine is running lean the explosion will be louder than a bike that has a proper mixture - but they will all bang with when you rev them and let the throttle close (ever notice all the Harley's popping and banging as the "bikers" arrive on the scene revving their engines?).

Using carb cleaner is not likely to do much good - if the carb has been subject to the effects of the ethanol fuel....the problem is more likely to be corrosion than it is to be just gummed up. A proper cleaning and jetting is in order.

Don't be this guy!

https://www.youtube.com/watch?v=Lt8F9QP-Azw
[media]http://www.youtube.com/watch?v=Lt8F9QP-Azw[/media]

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by piedmontbuckeye on 01/06/18 at 07:00:15

For what its worth, I have run LUCAS gasoline additive in all my vehicles for years. I buy it by the gallon and gallon will last about a year for me (mixture is 400:1). It will keep things clean. In my BMW, I pulled the carbs (much easier than on the Savage) after around 15,000 miles and they were still whistle clean (and a slight film of lubrication). It does work.

I think it is good to run carb cleaner through from time to time. I have always used Chevron Techron, but recently switched to Sea Foam.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by Bobber on 01/10/18 at 16:06:06

Sea Foam Works in my world.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by justin_o_guy2 on 01/10/18 at 16:29:00

I've tried a bunch of stuff, Sea Foam is the only one that made a noticeable difference.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by kylejang on 01/11/18 at 15:02:25

Thank you all. I decide to clean Carb and also want to replace spark plug too. Removing Carb was easy but I can't drain gas from gas tank . I turned to PRI and nothing is coming out. What should I do now please let me know thank you.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by verslagen1 on 01/11/18 at 15:30:02

turn it to the other prime.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by batman on 01/13/18 at 22:53:40

I think Vercy means you might have turned it the wrong way, look on the lever ,there is an arrow.

Title: Re: Carb/injector cleaner will work on cleaning Ca
Post by justin_o_guy2 on 01/14/18 at 00:23:56

No fuel draining
Out of gas
Petcock in wrong position
Or
Petcock screwed up.. filter clogged
Or, very unlikely, vacuum in the tank.