If you are cleaning the carburetor, the place you need to concentrate your effort is not just the slow jet but the passageway through the carburetor body. That is usually wear the blockage is located. If you have an unusually long slow jet be sure ALL the tiny holes are clear.
You should also carefully check that the intake manifold and any gaskets between the carburetor body and the cylinder head are not cracked, separated, leaking, etc.. The extra air from a leaking connection can keep the bike from idling. Also be sure there are no cracked or leaking tubes on the outside plumbing of the carburetor.
Ethanol/alcohol style fuels lower your fuel economy and have to be taken into the carburetor through larger jets for the motorcycle to idle and run properly. you can adjust for this with bigger jets or like most people by turning up the idle. Suzuki recommends not more than 5 percent alcohol content in the fuel. If you are in an area where they are selling fuel with 10-20 percent or more, drain your fuel from the motorcycle tank and burn it in your truck. Locate a station with NO ALCOHOL fuel and see if that helps.
Poor idle can also be caused by week spark usually caused by a burnt out resister in the spark plug cap. NGK makes various styles of spark plug caps for about $5 each. Unscrew the old plug cap off the end of the wire and replace it with a new one.
Long term use of Sea Foam can eat away the interior of a motorcycle carburetor. I recommend Chevron Techron. Usually 5-10 minutes of running idle time with a shock treatment will bring many carburetors back to life with out disassembly.
263 views
Usually answered in minutes!
Thanks for the info - I will definately switch from Sea Foam to Techron and I will check for leaks, etc. in the near future.
×