Suzuki TS90 runs again .....almost

[Valleyrider]

Originally Posted by skrub

Yep. Pulled the gas line, fuel runs fine. Got the float set per the manual. I was thinking in that direction, maybe it wasnt get fuel and cutting off the air would balance the mixture for it to run. When its running and the carbs blocked off you can twist the throttle and it revs like its supposed to. So that should say its getting fuel. Gotta love a challenge.

Been lurking... Sounds like you pilot jet is plugged or the passage from the pilot jet is plugged. These are very small and can be plugged very easily. Strip the insulation off of a length of copper wire and pull one strand off. Use it to pass through the pilot jet. Do this to the pilot jet circuit (under the area that the pilot jet is seated). Use lots of spray carb cleaner after the wire and do it again. Watch for spray cleaner to shot through the small hole that is in the carb bore (angled hole on the engine side of the slide). This should solve your problem... IF it is the carb. Engine seal behind the mag will be your next place to check. Do the pilot first

[Tuff Tunica]

Recently I've been rebuilding two old abandoned bikes. A great tool for cleaning the small orifices on a carb is a hypodermic needle. I've got a couple 2" 26 gauge that work great. Rigid enough to clean just about any small clogged opening.

[Shocktower]

Originally Posted by Tuff Tunica

Recently I've been rebuilding two old abandoned bikes. A great tool for cleaning the small orifices on a carb is a hypodermic needle. I've got a couple 2" 26 gauge that work great. Rigid enough to clean just about any small clogged opening.

I use Piano wire, you can find it at most hardware stores, I think

[MacNoob]

Originally Posted by Tuff Tunica

Recently I've been rebuilding two old abandoned bikes. A great tool for cleaning the small orifices on a carb is a hypodermic needle. I've got a couple 2" 26 gauge that work great. Rigid enough to clean just about any small clogged opening.

Originally Posted by Shocktower

I use Piano wire, you can find it at most hardware stores, I think

I use an acetylene torch tip cleaner.

[skrub]

That was it, a clogged passage. Thanks for the help every one. All it needs now is fine tuning. One last question, the manual says to set the air screw 1 1/2 turns off the bottom and ajust. Witch way increases or richens the engine ?

[slideways]

Originally Posted by skrub

That was it, a clogged passage. Thanks for the help every one. All it needs now is fine tuning. One last question, the manual says to set the air screw 1 1/2 turns off the bottom and ajust. Witch way increases or richens the engine ?

Clockwise is richer.

Everything you ever wanted to know about carb tuning.

http://www.eric-gorr.com/pdfs/carb%2...%20jetting.pdf