Question about Yamaha YZF-R125 Motorcycles

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Engine fault Hi guys my engine went about a year ago and now she doggs out all the time I think it's the air fuel mix not being correct can some one tell me what will fix this apart from a new engine please

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Check compression first and if over 125psi then look for problem in the caruration system. Check for a clogged or gummed up main jet. Clean good and set to factory specs and should be ready to good. Also install a new spark plug!

Posted on Mar 21, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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SOURCE: Engine Knock.

check your oil. check to see if your front sprocket nut came loose, or anything else on that side.

Posted on Mar 27, 2009

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SOURCE: i took apart and cleaned out my sr 125 carb but cant remember

Seat both screws lightly then go one and one half turns out. If no go, then remove the screws and check for any nicks, score lines or slight depressions around the end of each screw. ANY deformity on the screws dictates that it is time to replace the screws.

Posted on Apr 08, 2009

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SOURCE: Lucas Oil Stabilizer on 4 stroke Vtwin Motorcycle Engines

I tend to agree with DickCanFixIt. Why try to out engineer the engineers who designed the motor? Honda, Yamaha, Harley, BMW, Suzuki, Kawasaki and a hundred other manufacturers do not say or recommend the use of additives. Stick with the standard 10w40 motor oil.

By the way, if you can give DickCanFixIt a top rating, you should. Don't rate my answer, **** did the work here.

Posted on May 02, 2009

  • 921 Answers

SOURCE: engine snatch at 4000-5000 rpm in 4th , 5th gear,

seafoam carb injector cleaner $10. Auyozone try it.

Posted on Sep 16, 2009

  • 164 Answers

SOURCE: engine

if the water pump bearing or seal or bearing has colapsed it is posible for water to find its way into the crankcase. however I must ask did you completely flush the cooling system & change the oil when you changed the head gasket if not the sludge that was left behind would continue to mix with any fresh oil or coolant you may have put in if in fact your problem was a blown head gasket in wich case you need to investigate the cause of the blown gasket have you recently topped up the coolant whilst the motor was hot or worse over heated doing so will definately cause a head gasket to blow was there obvious evidence of the gasket being blown ie blow by marks on the gasket or the head & barrel surfaces if not you will need to further investigate the reason for water finding its way into the oil.Let me know how you get on.Regards Geoff

Posted on Apr 04, 2010

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I have volkswagen touareg 2004 model the engine will **** an air inside


The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.

Oct 02, 2012 | Cars & Trucks

1 Answer

Hi i have 4 cylinder 1996 dodge caravan. it only has 76,000 miles on it and the body is in good shape so i would like to fix it.we got the car two years ago and it had a stalling problem and a thrusting...

code P1294 target idle not reached most likely need to replace the idle air control motor. can cause the car to stall or reeve up.

code P0125 engine not reaching operating temperature, most likely you need to replace the thermostat, or possible the coolant temperature sensor.

the coolant temperature could cause the slight loss in power, because if the on-board computer thinks the engine is cold it will keep the fuel rich just like if it were trying to start a cold engine.

but i think you need to replace the fuel filter, that is probably the low power.

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2002 Toyota Rav4....check engine light""is

Here are two of the most common causes of the check engine light.

Most common, MAF ( mass air flow ), sensor. A faulty MAF prevents the computer from determining the correct fuel/air mix ratio.

Oxygen sensor. ( front and rear, front meaning before the catalytic converter, rear meaning after the catalitic converter. The front measures the fuel/air mix being sent through the catalitic converter, the back measures the emmisions and lets the computer know if any fuel/air mix ratios need to be adjusted. Both of these can trigger the check engine light.

I hope this helps you.

Feb 02, 2011 | 2002 Toyota RAV4

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Hello, my 525i bmw complitly cuts sometimes, i just bought it and i took it for a ride home , of 230 miles, and it stop twice on the way. It has the sign with the gas exhaust problems on .Took it to the...

I agree with you it does sound weird!
What year of manufacture is your vehicle?

If the scanner reads fault codes, they are in relation to faults which should be attended to. Just erasing the fault codes from the scanner does not repair the faults.
The fault should be fixed and then the code can be erased....Once that is done the code should not come again.
The most likely problem is the fuel system, in particular the fuel pump or maybe the fuel filter.
It would be really good to know which fault codes were picked up on the scanner?
A defective camshaft sensor can bring the car to a stop, as can a defective crankshaft sensor.
I believe a visit to a reputable workshop would help you
I cannot think of any reason why the engine would have to be dismantled. It may be required to remove certain parts from the engine, but certainly not taking it apart.
hope this is helpful?

Nov 26, 2010 | BMW 525 Cars & Trucks

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When first started black smoke comes out exhaust pipe,, what could this be

Black smoke is burning oil. Blue smoke is usually transmission fluid due to a leaking modulator valve in the older auto transmission. White smoke is due to water getting in to a cylinder from a bad gasket, cracked block or a cracked head. Black smoke from engines on starting and/or running tends to mean there is fuel leaking into the engine, or the fuel mix is incorrect and not atomised correctly. the main causes are normally a nakered air filter that isnt letting enough clean air into the engine to mix. a blocked fuel filter, which is either not letting enough fuel in, or in some cases, a faulty fuel filter which is letting too much fuel into the engine, and causing black smoke due to excess burning. Black smoke is a fuel/air mixture suggestion problems with injection or carbonation. Cause of black smoke is due to running rich in the fuel air mix. Check the oil,the oil leak,the air filter,the fuel pump and fuel filter to confirm the fault.

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation

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99 lexus es 300 chk engine and trac lock lite on

I had check engine light and TRAC OFF. OBD-II MIL code was P1133 which is Air Fuel Ratio Sensor Response Malfunction and scanned by AutoZone. After disconnecting the battery for 10-15 minutes, the lights went off. I cleaned the gas cap and tightened it firmly. For the last 400 miles, the lights have not come back. When scanning using Snap-on one, no code was detected. I think gas cap was the reason for the lights.

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Yea buddy your fuel pump is gone whether the car is up and driving or sitting for years the fuel pump will give out over time.

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Saw will not start Husqvarna 350


An engine needs three things to run(fuel and air mixed together in the correct proportions,compresion of the fuel/air mixture and ignition).Make carb adjustments,check the compression and the spark from the sparkplug.Priming the engine(put some gas into the sparkplug hole).Try to start the engine.If engine is running only the gas from the cilinder,the chain saw has a fuel delivery problem.Disassembly the carb and clean the inner parts.Check the fuel and air filters,fuel hose and gas tank ventil.

good luck!savumihai71

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