Question about 2003 kawasaki KX 250

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Run ngk plugs gas ratio 50/1 with klotz whats is plug gap

Run ngk plugs gas ratio 50/1 with klotz run low rpm or idle will foul out what should i gap plug at on 2001 kx250 if thats the problem

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Posted on Aug 02, 2009

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What is the oil to gas mixture for a yard machines y780? I've been using 50-1 and I'm cleaning black gunk off of the sparkplug


Hi Corbin:
Here's a link to the manual
http://www.manualslib.com/manual/108266/Mtd-Y780.html#manual
On page 3 it specifies a 40:1 fuel /oil ratio.
The 50:1 ratio actually has less oil so would not explain your plug fouling.
I'd suggest that you try using the hi-speed needle adjustment to lean it out. To do that, start it and get it warmed up, then hold it at full throttle and turn the screw slowly clockwise. The engine rpm should increase, and then drop off. Back the screw off until the rpm peaks, then back it off another 1/4 turn.
Hopefully it will give you more power with less plug fouling.
Also double check that you have the correct plug.
Cheers.

Jul 02, 2016 | Garden

1 Answer

What number plug should I be running in my 2002 125 rm suzuki


I would use a NGK Platinum Plug (R6918B-8 or BR8EIX/BR9EIX) and try to cut back a little on the oil mixture to gas ratio or adjust the gap a little hotter.

Sep 27, 2015 | Suzuki RM 125 Motorcycles

1 Answer

Spark plug settings honda jazz 1.4 2006


.


Inspect the electrodes and ceramic insulator.






  • Burned or worn electrodes may be caused by:




    • Advanced ignition timing


    • Loose spark plug


    • Plug heat range too hot


    • Insufficient cooling









  • Fouled plug may be caused by:




    • Retarded ignition timing


    • Oil in combustion chamber


    • Incorrect spark plug gap


    • Plug heat range too cold


    • Excessive idling/low speed running


    • Clogged air cleaner element


    • Deteriorated ignition coils












2.


Check the electrode gap (A). If the gap is over the standard, adjust the gap with suitable gapping tool.







Electrode Gap




Standard (New):


1.0-1.1 mm (0.039-0.043 in.)












3.


Replace the plug at the specified interval, or if the center electrode is rounded (A). Use only the spark plugs as listed.







Spark Plugs




NGK:


ZFR6K-11




DENSO:


KJ20DR-M11

Apr 09, 2012 | Honda Jazz Cars & Trucks

1 Answer

Hard to start, when i get it started it fine shut it off try to start it hard to start


Hi
General advice aplicable for all gas powered chain saws;
Clean air filter regularly.
-Adjust spark plug gap (very important). A faulty gap will either cause poor spark or a overloaded and damaged spark plug coil.
-Use correct good quality spark plug
-Use correct oil/fuel mix ratio and correct oil.
-Do not use old premixed fuel if you can avoid it.

Carburator adjustment;
-idle speed setting screw should be set so that the saw idles well, without engaging the chain. If you normally have to press the gas lever to be able to start it coul indicate a to low seting. Clockwise will increase idle speed. This screw is found near the carburator and is slightly larger the the two adjusment screws.
- fuel-air mixture screws can be set to standard factory setting as a start. Normally there are 2 screws labeled L and H, for Hi and Low rpm band adjustments. Factory setting are usually 3/4 turn out(anti clockwise) from fully closed setting for both (clockwise to closed position).
Experiment with adjustments by 1/8 increments at the time. Anti clockwise turning will increase fuel to air ratio and opposite. Warm weather will require a slightly leaner mix and cold weather will reqire a slightly richer mix(more fuel). Low rpm setting only serves the idling performance. The Hi rpm setting can be evaluated by removing the spark imediately after running at full load for a period. The spark plug should be dry, and be lightly brownish at the electrodes. White-ish color indicates low fuel to air mix, and this causes too high combustion temperature. A black colour indicates a too high fuel to air mix ratio, and it causes carbon build up on the plug.

If you still have starting problems, cylinder/piston compression is the next to check for. This is a more extensive job and should best be left to professionals, unless you are very skilled and have access to special tools required. Compression on modern saws are very delicately balance, so the slightest damage to either the rings, piston or cylinder can cause problems. Is is not alwas worth to replace the cylinder and piston kit, so compare prices and ask for advice at your dealer.

I hope this helps you.

Feb 25, 2011 | Poulan P3416 16Inch 34cc 2Cycle Gas...

1 Answer

I have a Homelite YARD BROOM II 170 mph Blower.what is the oil to gas ratio?


I usually mix at 50:1 useing klotz two stroke oil,or 44:1,klotz is high performance zynthetic oil,also has nice sweet smell when running,keeps the neighbors from complaints on bad smell.

Feb 11, 2011 | Homelite 'Yard Broom' Leaf Blower

2 Answers

I have a Hasqvarna 150BT blower that started to make a knocking noise at full power and has lost some power. Seems to start ok. Loss of power / rpm and knock are only ploblem?


I had the same issue with a Husqvarna 150 BT blower. Brand new ran through 2 tanks of gas and need to buy more gas , mixed 50 to 1 ratio 87 octane on new gas which was the same as what i was running and it started pinging and running like **** then stalled and would not start. took the plug out and it was fouled. cleaned the plug got it running again but still not good. This model comes with a NGK CMS7H plug which i replaced with a champion RZ7C and new gas 93 octane and lawnboy oil mixed 50 to 1 ration and now its running like a champ. I've had bad experiences with NGK spark plugs in the past and thought this may resolve the issue and it did. Hope this is helpful to anyone out there having the same issues. Also used some fuel stabilizer in the fuel mix, I hear this helps with the ethanol problem in the fall/winter gas.

May 13, 2010 | Husqvarna Backpack Blower 25cc, 140 Mph,...

1 Answer

My 1989 gmc half ton truck will die out when truck rpm or idle drops down.


happens mostly in reverse at very low speed. change spark plugs to an ngk, increese gap by 0.01 and advance distributer about 1 or 2 digrees to increase idle from around 800 to 850 or 900.

Jul 17, 2009 | 1989 GMC Suburban

2 Answers

Oil and gas mixture coming out by exhaust


first off make sure the oil gas mixture is correct and mixed very well.... have the carb cleaned out very well or even rebuilt, jetted and adjusted...

Jul 06, 2009 | 2003 Yamaha YZ 125

5 Answers

I have a 2005 kx 250 2 stroke and it keeps eating plugs


NGK brand spark plug BR8ECMVX is the stock plug for the bike. The proper gas / oil mix is 32 to 1. That means 4 ounces of 2 stroke oil per gallon of gas. The posting was not clear as to just what the problem is. If you are burning up plugs there may be a air leak in the intake system making the bike run lean. A lean fuel mix runs hot.

Jun 24, 2009 | 2005 kawasaki KX 250

6 Answers

Kawasaki kx 250 fouls spark plug in 30 minutes


You definitely need to change the oil mixture to at least 40:1, use a good grade of 2 stroke oil. You do NOT need to return the bike. I'd highly recommend using an NGK B7EV spark plug. A hotter plug will stop the premature fouling. I would not recommend you decrease the oil to 50:1 because you are essentially robbing the engine from adequate oiling for the piston, KIPPS valves and the bearings. The hotter plug will make a huge difference but remember if he gets to the point where he is able to ride the bike to it's potential he will need to run the cooler plug, B8EV or B9EV. You can also use a cheaper plug in the same heat range, B7ES or B8ES. Those plugs should cost about $1.25 ea. and are an affordable cost of running the bike. It's not uncommon to replace a spark plug frequently, it's the nature of the 2 stroke engine.

Dec 08, 2008 | 2003 kawasaki KX 250

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