I need to lean up my carborator and dont know which way to turn the screw. dont have manual.

Can you quarter turn your carborator up so more gas flows through your carborator? (Depending on what model and year car/truck you have it may not have one to adjust it would be located under your filter on top of your engine and the adjustment would be a screw with a spring on it lefty loosy tightly eighty so turn it right to tighten but not too much just a quarter at a time until the heater stays on) hope that helps

r u sure--chec in a clymer manual or ask a dealer tech--too lean will burn an engine--too rich fouls plugs

i would love to help but i need to know the type of bike you have and the year to get you that info..but the simple answer is the farther in the screw the leaner it gets the farther out the richer the mixture....lean is bad you want it a little rich i say bring the pin all the way in then 3 full turns or clicks out should do it. if it sounds like popcorn it is still to lean turn it out a little more let me know if this helps

you are correct it is a fuel problem/getting to much fuel,if its carborated i would try to adjust it to lean it out a bit.if its fuel injected i would try to get smaller injectors or reduce the fuel pressure.

look in your owners manuel for air and fuel adjustment screws on the carborator. if you dont have the manual look at the carborator and the ywo screws shood be right next to each other and probably the only screws you see. turn each screw clockwise counting the number of turns till they stop. be sure not to tighten real tight as this might cause damage. turn both screws ouy the same amount of turns. hopefully this might dislodge any junk that may have accumulated at these points. start it up and see if any improvement. if not try adjusting those same screws either left or right to try to increase power. good luck

21/2 turns out on fuel mixture screw
31/2 turns out on idle screw
once running adjust in increments of 1/8 turn
but those are what manual calls for the tc1000

hello,the starting point for adjustment screws is 2 turns out.turn in til lightly seated so as not to damage them. there are 2 or more style carbs used on saw,some have plastic caps that need to be removed(a small metal screw used as a corkscrew or pry off) or you need a special tool -splined.set high spped til runs good and back off an 1/8-1/4 turn so you dont burn it up. fine tune low spped so it accelerates when trigger squeezed and re check high speed adjustment.single screw is for idle spped-raises or lowers-if chain turns while at idle back off screw.

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If the vehicle is still running original systems then you would need to take it to someone with 1 of the hand programmers to readjust the fuel system settings. If this vehicle has been converted over to or originally was a carborated There are typically 2-4 mixture screws depending on the unit. They will be infront of and behind the carborator. To adjust a carborated you will typically take a flat head screw driver and turn all the way to the right till they are only "finger tight" Once there, note a starting point and from there VIA each screws individual starting point. Turn them all 1 1/2 turns, this will place the carborator at the factory starting position. From there you can then start the vehicle and while it's idleing you can begin to adjust all mixture screws by turning 1/2 a turn till the vehicle looks, sounds, and smells like it is running correctly.

Another method I have seen is using a vaccume pump to register preasure, there are some video's out there to do this method and it can help you fine tune it a little more then one can just by ear. I hope this has helped you or atleast set you in a direction to getting the issue solved.

The hose with the filter in the tank is the pick up, the other is return. the pick up is usualy goes towards the middle pipe on the carby. if you get them around the wrong way it wont pick of fuel..

Screw the mixtures in untill they just bottom and screw them out 1 to 1.5 turns start up set low mix untill its just "four stroking" the set the high.