Question about 2005 Beta Eikon 150

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Tuning curbs I've read a lot about carb theory and how to adjust needles and whatnot

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So I think I could guess my way through it mechanicly but how do I know where to stop. My eikon 150 running rich currently (black dirty spark plugs) and I would like to lean it out properly but I'd much rather have a too rich bike fouling spark plugs than a too lean bike fouling engines. So how do I adjust it properly and how do I know when it's right? Hey Kit. Are the plugs oily, or are you getting white smoke out the pipes? Well, you may already know these symptoms might indicate another issue besides fuel mix. \Anyway, rich mixes don't make much power. You'll be surprised how quick your bike is when you get the mix leaned out a bit. First of all, I'd make sure the float levels are set correctly and that the float valves are indeed seating. If they don't close off the fuel flow tightly you'll get raw fuel dumping into the carb bores... not good. Also make sure the air filter is clean and there is absolutely no obstruction to air flow. If there are problems with either of these, nothing else you do will matter much. BTW,you'll know you're there when you get a tan or light brown color on your plugs.,,,

Posted on Nov 10, 2008

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Pilot needle clip adjustment after up jeting


Hi, Adam for a leaner circuit the clip has to go up so the needle can go down. For more information about your question please click on the links below. Good luck and have a nice day.
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Sep 03, 2016 | Motorcycles

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How to adjust carb settings


Hi Charlie.<br />Operations to be performed depends on how much tuning is needed.<br />Carb setting regulates the ratio between air and fuel in the mixture aspired into the cylinders.Optimal air/fuel ratio is usually around 14(air) to 1(fuel). I illustrated the complete job with cleanup and jet replacement and adjustment. In some situation you do not need to perform complete tuning, which involves taking apart the carburetor. In that case perform basic regulation setup using the two adjustment screws at one side of the carb. Adjustment simple procedure starts from part 2/Adjustment. A good approach is first doing adjustment using idle and thickener screws. Then do the whole tune up if the simple adjustment does not work.<br />The complete tuning is based on carburettor cleanup, regulation of main jet and idle jet and needle setup.<br /><br />Part 1 : Complete tuning and cleanup:<br />1. Take apart the carburettor,<br />2. Undo the float chamber(6 in diag) held by screws (26 in diag).<br />3. Clean bowl with with carb cleaner (put a lot of it in the bow, wait a bit and dispose it-finish the job with a cloth if needed) . Clean floats (nr.4) and other parts using carb cleaner and cloth.<br />4. Use a flat screwdriver to remove the main jet screw (placed in the chamber, held by big golden screw, goes between the floats). Spray the main jet. You must be able to see through it.<br />5. Use the carb cleaner to clean the accelerating pump and all the other parts inside the part. Needle and small parts must be cleaned. Clean the idle jet, which is the smaller golden screws. If you have a compressor blow into the jets (you can blow them even without compressor, but follow H&S).<br />6. If possible replace main and idle jets. Sometimes you may like to replace the jet with a bigger one to get a richer mixture.<br />7. Adjust the needle if needed. A lower needle settings means a richer mixture.<br />8. Remove idle adjustment screw (7) and main adjustment screw(31), clean them screw them back in without tightening and perform part 2. Leave the screws about one and half turn from all way in.<br /><br />Part 2: Tuning and minor cleanup - Here you mainly operate on idle and air (thickener) adjustment screws (8 and 12 in diag)- Start from here, if this does not work, do part one:<br /><br />1) If the engine runs start from idle adjustment: screw or unscrew the idle regulator to adjust the idle speed, the screw is placed to one side of the carburetor and has a spring (part 12).<br />Keep idle least slightly higher than the minimum needed. Example, if the engine stays on slightly below 1000 rpm, set idle to a bit higher with engine revving above 1000 rpm.<br /><br />2) The thickener, placed near that of the minimum screw regulates the air flow. Tighten the screw and unscrew 2 turns from all the way in. Do regulation from this position. <br /><br />Here carburetor diagram and part list. The diagram is taken from service manual. The manual for Lifan 150 (does not include carb setting) has been uploaded here:<br /><br />http://www.mediafire.com/?o3r8x2ujrdbfb6o

on Oct 29, 2011 | 2008 Lifan Delta 250 V Twin

1 Answer

Does anyone know the factory setting for the carb on a jonsered 820


Usually you can tune these rather easily.

Turn both adjustment needles clockwise until snug.
Back both out 1 full turn

Now on the L needle, you adjust this while the saw is idling.. 1/4 counter clockwise increments...

The H needle you adjust while pressing the throttle in and holding it in as you turn the needle as well counter clockwise.

In the meantime, I will try and find if they post the actual settings which are more based on the engine capacity/ cc... the model of the particular carburetor will vary saw to saw.

Oct 10, 2015 | Garden

1 Answer

Carburator cleaning


its like 100 steps. you want us to type that out? and no YEAR?!
clean and tune, now that is even more steps.
got wide band portable oxygen sensor , so we can tune it easy.
or 2 days ,driving on a track and tuning by feel and spark plug tip readings?
so cleaning.
1: dismantle it.
2: clean all metal parts, in cleaner (called carb cleaner)
3: buy the kit.
3: install all parts and kit parts, per the FSM pages on CARB. and
setting the float level per book.
4: set the needle (slide) where it was before. needle clip.

then tune it per the FSM or use WB o2 sensor, at idle, cruise and WOT.

Feb 27, 2014 | Hero Honda Motorcycles

1 Answer

This is my occuring problem I've been having: Bike starts up fine and will run fine in any gear if going slow and not opening the throttle lots. But as soon as open throttle lots the bike instantly...


this does is not related to the idle adjustment. It sounds strange that there is no fuel filter, there should be. the screen is for only stopping any large debri from going to the carbs. follow the fuel line from the tank valve and I will bet you will find a fuel filter. i also would suggest draining the fuel bowls on the carbs and catch the fuel. check for any debri in this gas. You may try running some seafoam carb cleaner thru the carbs. After changing filter and bowl draining does not work you may have to remove the carbs to clean them and make sure all is operating correctly ( slides). be sure that your air filter is also clean.

May 15, 2011 | Honda CR 250 R Motorcycles

1 Answer

What could be the problem with the carb if going through way to much gas? 2 barrel carb &manual choke? F150 doesn't want to run very good when cold. Truck just guzzels the gas after started. Got a 302...


Possible things to be considered: Float level too high, needle has a bad seat and won't shut off, vacuum leak (either internal or base gasket), choke not properly adjusted.

My money would go on a carb. rebuild kit (but only if you feel comfortable attempting it) it's not all that difficult, but you MUST be (1) an absolute nut about cleaning it all very well, and (2) the various gaps, clearances, adjustments, must be made with excruciating precision.

This will be a lot cheaper than a rebuilt carb., and you'll get the satisfaction of doing it yourself.

While you're at it do a general tune up.....plugs, points condenser, wires , air filter, PCV, etc.

Dec 30, 2010 | 1984 Ford F 150

1 Answer

I rebuilt the Walbro carb on a Pioneer 1074


Go to: www.drystacked.com for a 12 page PDF document that describes, explains theory, and servicing this line of carburetors. Note the precaution on placing the gasket in the lower chamber. After presetting the H and L jet needles, start the engine and allow to warm up. Open full throttle and adjust the H needle CW to allow the engine to 4-stroke, but will immediately 2-stroke when starting to cut wood. Adjust L needle CW to allow fairly smooth idle, but will allow the engine to 'follow the throttle'. Hope this helps!

Apr 06, 2010 | Garden

1 Answer

I have an 1982 f 250 4.9 and go through carburaters a lot. New ones last may be a year then start burnning way to much gas. The carb has an idle adjustment and a curb idle adjustment no air gas mixture...


1982 ?? their wouldnt be any adjustment as they are fixed jet carbs ,you could try fitting new jets but whats causing them to eat away in the first place i dont know unless its the fuel additive that you have to add to the unleaded fuel

Jul 12, 2009 | 1982 Ford F 250

1 Answer

Needle clip


Red Express read the title he wants to change the needle clip position. Heres how to do it: 1. Loosen the cap from the top of the carb and pull out the slide. 2. Compress the spring and fiddle with the cable untill it pops out 3. Now, there should be a small bolt covering the needle, remove it 4. Pull out the needle and remove the c-clip, adjust to desired position (down to richen, up to lean) 5. Put needle back in and install bolt 6. Install cable 7. install slide and top cap 8. Fire it up and finish tuning carb.,,,

Nov 10, 2008 | 2003 HM Motard 125

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