Mbk Flame 125 Service Manual

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Hi, Moatez you may have squeaked your top end this is commonly known as 'HEAT SEIZE' the piston heats up expands and becomes extremely tight in the cylinder bore and usually occurs mainly on 2 cycle engines right after a fresh top end rebuild, but it can also happen to brand new motorcycles, these are rare instances due to better quality control and education. Overheating failures that cause pistons to seize are many and each one should be carefully diagnosed to prevent future repeat offenders and the usual suspects are: 1. Lack of lubrication due to low or no oil. Among the causes of lack of cylinder, lubrication is clogging of lubricator by dirt or waste, obstruction in oil pipes/lines, leaky check valves, leaky pump packing, broken oil pipe/line, oil too cold to feed.

Wrong type of oil used in premix or oil tank. Improper premix ratio you should start with 32:1 as a baseline. New rebuild piston to cylinder tolerances set up too tight. Failure to follow proper break-in procedures with a 16:1 premix ratio.

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Loose fasteners causing intake, base, or head gaskets to leak or blown crankshaft seal, failure caused by age, overheating or walking. Holes in the intake manifold bent or warped intake flange or reed cage any stray air coming into a cylinder will cause a super lean condition. Improper assembly of reed valve gaskets. Insufficient warm-up time for temperature conditions before WOT. Broken, pinched or cracked fuel line. Carburetor fuel passages clogged or restricted from stale fuel varnish, ethanol sludge, dirt, rust, or fuel level in float bowl too low. Main jet size too small or partially clogged 14.

Air filter improperly installed, missing or not sealing. Faulty or improperly adjusted oil pump and or cable. Failure to bleed oil pump after a rebuild/replacement or running oil tank dry.

Engine coolant level too low, too old, or improper mixture ratio. Radiator clogged, fins damaged, or faulty cap. No liquid circulation due to failed oil or water pump. Cavitation due to air in oil or coolant system. Water and oil mix due to a blown head gasket. Timing retarded due to faulty CKP sensor or CDI.

Mbk Flame 125 Service Manual

Improper spark plug heat range (too hot) and or gap. Excessive engine load, brakes dragging, clutch slipping, transmission lubricant level too low or viscosity to high. For more information about your issue and valuable 'FREE' downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.

Btw, I’m available to help over the phone in case u need at Answered on May 28, 2018. Hi, Schanachiesi and the usual suspects are: 1. Severely drained or faulty battery. Faulty regulator/rectifier or high output coil. Faulty power valve, solenoid, installation or adjustment. Clogged air filter.

Filter Air Mbk Flame 125

Loose exhaust pipe at the cylinder head. Missing or worn out cylinder head exhaust gasket. Clogged muffler. Cracked or incorrect float level. Float needle is not seating. CVS carburetors diaphragm faulty.

Gas tank contaminated outlet clogged. Gas cap not venting. Fuel filter clogged.

Faulty fuel pump. Faulty reed valve. For more information about your issue and valuable 'FREE' downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day. Btw, I’m available to help over the phone in case u need at Answered on Dec 07, 2017.

Hi, Skidmark I would love to help you with your engine or chassis noise but I just loaned my brand new pair of listening ears to your local dealer's chief technician so he could take your bike for a test ride and give you his professional opinion and estimate about your noise and repair cost. If you are a little short on 'DRACHMA' and a Dealership is not on your list of fun places to visit then perhaps the list below will help soothe your worried mind so you can make an informed decision. Bearings-SCREECH 2. Belts-CHIRP 3. Brake Rotors-BUZZ 4.

Chains-RATTLE 5. Clutches-CHATTER 6. Cylinders-PING 7. Fronk Forks-Plunk 8. Gears-WHINE 9. Head Gasket-HISS 10. Hydraulic Lifters-TAP 11.

Pistons-SLAP 12. Rear Shocks-SQUEAK 13. Shifting Trans-CLUNK 14. Solid Lifters-TICK 15. Starters-CLICK 16.

Connecting Rods Go-KNOCK-KNOCK-who's there, it's me '.' For vibration the usual suspects are: 1.

Wheels and or tires worn or damaged. Engine/transmission/vehicle not aligned properly. Primary chain is badly worn or links too tight as a result of insufficient lubrication or misalignment.

Engine to transmission mounting bolts loose. Upper engine mounting bracket loose. Ignition timing incorrect due to a poorly tuned engine. Internal engine problem flywheels have shifted.

Broken frame. Stabilizer links worn or loose. Rubber mounts loose or worn. Rear fork pivot shaft nuts loose.

Mbk Flame 125

Front engine mounting bolts loose. For more information about your issue and valuable 'FREE' downloads that you will need please click on the blue links below. Good luck and have a wonderful day. Btw, I’m available to help over the phone in case u need at Answered on Mar 26, 2017. It is similar to the Yamaha and Aprillia 125S.

If it has not got one fitted already, at the upper most front point of the cylinder head, there needs to be a valve fitted. This valve keeps a constant pressure on the exhaust gasses leaving the engine, two stroke engines require 'back pressure' to enable the reed valves and the whole sytem to run as smooth as possible. The valve is controlled by the CPU or Engine Management Unit of your bike, which also has a built in restrictor between 2500 and 5500 revs. Depending upon the CPU used there may be a way of removing the European Restriction at those revs. Cgheck online for that reference.

Try joining a blog on your bike, there are a few about. Hope this helped you. Answered on Apr 23, 2014.

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