Question about 1998 Honda CBR 600 F(3)W

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Takes a mintue of turning the egine over to start and run properly, i also feel that maybe the idle adjustment on the handle bar is slitghtly off. could this be the problem?

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If it eventually idles right then the carb prpbably needs cleaned(ir injectors if it is fuel injected, you could take it apart and clean it(sure method) or try seafoam to clean it out(doesnt always work) to adjust the throttle properly, it should be loose enough that you have a tny bit of movement before it actually revs, and the throttle should "snap" back to idle very rapidly with an audible click. if this doesnt happen your cable is too tight or needs lubricated.

Posted on Aug 23, 2010

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I have a 2005 Yamaha ttr 90 for my son. I cleaned the jets. Then itwould not idle so I adjusted the Idle on the handle bars. Now it hesitates when I twist the throttle. And before I adjusted the throttle...


Hi, Anonymous and the usual suspects are:
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2. Air fuel mixture screws not properly adjusted.
3. Inlet system air leak.
4. Leaking accelerator pump.
5. Loose low-speed jet.
6. Plugged low-speed jet.
7. Contaminated or plugged low-speed circuit.
8. Enrichner valve/choke not seated or leaking.
9. Multi carburetors out of sync and need to be balanced.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
2002 ttr90 won idle
TTR90 Carb Fix
YAMAHA TTR90 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-tt-owners-manuals

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MTD snowblower with Tecumseh engine 8 hp stalls out when chock is adjusted to run position


hello ,your engine is a tecumseh HMSK90-156525D, Sounds like carb. may need adjusting. Take the heat box off to expose carb. the heat box is the metal box surrounding the caeb., there should be 2 adjustment screws- 1 on the bottom of the bowl and 1 on the side of the carb just above the edge of the bowl ( depending how the carb sets off the engine - if the carb comes straight out it will be on the side facing towards the front of the snow blower or if it goes towards the handles then standing other side of the snow blower the screw will be facing you), turn both screws in til they just bottom out the turn them out 1 1/4 turns out then start the machine. While the machine is running at low idle turn the screw on the side of the carb. in (clockwise) a little at a time listening for the engine to start to rev up and then start to rev down, bog or studder then turn back slightly to bring idle back up. Once the idle is up then the screw on the very top of the carb. turn that out to lower idle to a normal idle. Repeat those adjustments till you cant get the idle to go up anymore. Now for the screw on the bottom of the bowl- move the throttle up to max and turn the screw in till you hear it rev up higher and starts to bog or sputter then turn it back slightly to bring the high rev to a smooth rev. That should take care of it. If it does not solve it then the carb may need cleaning then the adjustments done again. If you need more help on this please feel free to ask. Sometimes you have to do process of elimination and you start with the easiest first. Also the adjustments should help with the carbon build up on the plug.692509.pdf (application/pdf Object)
i have included the manual to give you a good understanding of the carb, page 7 to 25, hope this helps,don't forget the 4 thumbs up,any comments welcome,thank you.~~

Feb 23, 2012 | Tecumseh Snowblower Snow Blower Starter...

1 Answer

Stalls when chock is in run position


hello ,your engine is a tecumseh HMSK90-156525D, Sounds like carb. may need adjusting. Take the heat box off to expose carb. the heat box is the metal box surrounding the caeb., there should be 2 adjustment screws- 1 on the bottom of the bowl and 1 on the side of the carb just above the edge of the bowl ( depending how the carb sets off the engine - if the carb comes straight out it will be on the side facing towards the front of the snow blower or if it goes towards the handles then standing other side of the snow blower the screw will be facing you), turn both screws in til they just bottom out the turn them out 1 1/4 turns out then start the machine. While the machine is running at low idle turn the screw on the side of the carb. in (clockwise) a little at a time listening for the engine to start to rev up and then start to rev down, bog or studder then turn back slightly to bring idle back up. Once the idle is up then the screw on the very top of the carb. turn that out to lower idle to a normal idle. Repeat those adjustments till you cant get the idle to go up anymore. Now for the screw on the bottom of the bowl- move the throttle up to max and turn the screw in till you hear it rev up higher and starts to bog or sputter then turn it back slightly to bring the high rev to a smooth rev. That should take care of it. If it does not solve it then the carb may need cleaning then the adjustments done again. If you need more help on this please feel free to ask. Sometimes you have to do process of elimination and you start with the easiest first. Also the adjustments should help with the carbon build up on the plug.692509.pdf (application/pdf Object)
i have included the manual to give you a good understanding of the carb, page 7 to 25, hope this helps,don't forget the 4 thumbs up,any comments welcome,thank you.00

Feb 23, 2012 | Tecumseh Snowblower Snow Blower Starter...

1 Answer

Oh318sa


hello ,your engine is a tecumseh HMSK90-156525D, Sounds like carb. may need adjusting. Take the heat box off to expose carb. the heat box is the metal box surrounding the caeb., there should be 2 adjustment screws- 1 on the bottom of the bowl and 1 on the side of the carb just above the edge of the bowl ( depending how the carb sets off the engine - if the carb comes straight out it will be on the side facing towards the front of the snow blower or if it goes towards the handles then standing other side of the snow blower the screw will be facing you), turn both screws in til they just bottom out the turn them out 1 1/4 turns out then start the machine. While the machine is running at low idle turn the screw on the side of the carb. in (clockwise) a little at a time listening for the engine to start to rev up and then start to rev down, bog or studder then turn back slightly to bring idle back up. Once the idle is up then the screw on the very top of the carb. turn that out to lower idle to a normal idle. Repeat those adjustments till you cant get the idle to go up anymore. Now for the screw on the bottom of the bowl- move the throttle up to max and turn the screw in till you hear it rev up higher and starts to bog or sputter then turn it back slightly to bring the high rev to a smooth rev. That should take care of it. If it does not solve it then the carb may need cleaning then the adjustments done again. If you need more help on this please feel free to ask. Sometimes you have to do process of elimination and you start with the easiest first. Also the adjustments should help with the carbon build up on the plug.692509.pdf (application/pdf Object)
i have included the manual to give you a good understanding of the carb, page 7 to 25, hope this helps,don't forget the 4 thumbs up,any comments welcome,thank you.~~

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1 Answer

My saw was working fine then it turned off and i tryed to ajust it and i think i made made things worst how do i ajust it to the factory setting the H and the L and LA it a stihl 039


Make sure your saw is about half full of fuel. It makes a difference on the adjustment. Start your saw and let it warm up to operating temperature. Then turn the saw off for a minute. So you can do the initial adjustments,

first using either a small screwdriver or hex screwdriver ...depends on what the 039 has.

Turn both the Low speed (L) and High speed (H) clockwise until they stop. The turn them both one full turn counterclockwise.

Then with the screwdriver turn the H screw slowly clockwise. You will notice it will start to run faster as you turn it. Adjust the screw until the saw is running smooth and fast until it starts to 'flutter" . Then turn it slightly back . This will get the proper RPM.
If it is running too fast,or too slow, turn the Idle Adjustment screw (IA)( it is an i not an L) counterclockwise to lower the idle or clockwise to higher the idle.

Put the brake on and let it idle. Then turn the saw different times to each side and up and down. If it turns off or sputters, turn the L screw slowly back a little to adjust it and that should give you the proper adjustment. Now , if there is nothing else wrong (like a vacum leak) your saw should run fine.
If you absolutely can't adjust it. Something else is wrong it is sucking air through somewhere. Take it to the shop. or if you can, DIY, then by all means do it.

Sep 07, 2011 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

Carburetor is running rich.


Hi jim paton...
You may have some trash/debris in your jets that is causing your engine to run rich, or maybe some did not adjust the high speed/idle adjustment screws properly

Before you remove or try to adjust your low and high speed jets you should always count the number of turns it takes to lightly seat the idle mixture screw and high speed needle adjusting screws.
Be sure to write the number of turns down on a piece of paper so you will know how many turns from the seated position to open the jets when you go to reinstall them, or if you remove them for cleaning or replacement.
Normally you will adjust your idle jet to 1/2 to 3/4 turn open from the bottom seated position.
Then you will re-adjust the low speed of the engine when the engine is warm by turning the idle screw in or out till the engine runs smoothly at idle speed, around 1200 RPM.
The high speed jet is adjusted to 1 1/2 to 1 3/4 open from the bottom seated position, after the engine is warm.
Then re-adjusted by turning the High Speed jet adjustment screw in or out till the motor runs smoothly at high speed.
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Jun 13, 2011 | Garden

1 Answer

HOW TO ADJUST CARB. ON CRAFTSMAN 21 cc BUSHWACKER HEDGE TRIMMER


Does the unit have jet screws marked H and L? Turn (both) CW to stops (lightly), then turn each CCW 1-1/2 turns. This is a basic setting that should allow the engine to start and run. Make sure the fuel filter, air cleaner, and muffler are not plugged. Start the engine and allow to warm up, pull the throttle full on and adjust H needle CW until the engine starts to speed up, but continues to 4-stroke. Proper adjustment is when the engine 4-strokes unloaded, but immediately 2-strokes when trimming. Allow to idle and adjust the L needle CW for better idle, but allows the engine to 'follow the throttle'. Adjust the idle speed screw so that the engine continues to run, but doesn't run the cutter bar. Hope this helps!

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1 Answer

How do you adjust the carborator


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1 Answer

Bad handling, handle bar tank slap at high speeds. Bike feels like the handle bar is going to rip out of my hands. bike does not feel stable.


try the suspension adjustment its primearily for weight distribution when takeing on a passenger in the back.

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1 Answer

Have a toro power stage max model 826LE electric start, runs irre


Sounds like carb. may need adjusting. Take the heat box off to expose carb., there should be 2 adjustment screws- 1 on the bottom of the bowl and 1 on the side of the carb just above the edge of the bowl ( depending how the carb sets off the engine - if the carb comes straight out it will be on the side facing towards the front of the snow blower or if it goes towards the handles then standing other side of the snow blower the screw will be facing you), turn both screws in til they just bottom out the turn them out 1 1/4 turns out then start the machine. While the machine is running at low idle turn the screw on the side of the carb. in (clockwise) a little at a time listening for the engine to start to rev up and then start to rev down, bog or studder then turn back slightly to bring idle back up. Once the idle is up then the screw on the very top of the carb. turn that out to lower idle to a normal idle. Repeat those adjustments till you cant get the idle to go up anymore. Now for the screw on the bottom of the bowl- move the throttle up to max and turn the screw in till you hear it rev up higher and starts to bog or sputter then turn it back slightly to bring the high rev to a smooth rev. That should take care of it. If it does not solve it then the carb may need cleaning then the adjustments done again. If you need more help on this please feel free to ask. Sometimes you have to do process of elimination and you start with the easiest first. Also the adjustments should help with the carbon build up on the plug.

Jan 15, 2009 | Agri-Fab Agri - Fab Snow Blower - 42"

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