Honda Mtx 125 Manuals
Restored 1990 mtx 125, powder coated, many new parts. Honda MBX/MTX 125 & MTX200: Owners Workshop Manual [Haynes Publishing] on Amazon.com. *FREE* shipping on qualifying offers. Each Haynes manual provides specific and detailed instructions for performing everything from basic maintenance and troubleshooting to a complete overhaul of the machine. THE place to access '73 - '83 Honda Elsinore CR, MR & MT model info, tech forums, swap meet, photos, owner gallery, articles, and more!
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Honda Motorbike Troubleshooting Searches: Clutch system INFORMAITON The purpose of the clutch i465 black is definitely to easily disengage and participate the motor from the rear steering wheel for starting, quitting and moving armor and weapon upgrades. The clutch will be a damp, multiple-disc clutch with metal discs and fibers (friction) plates stacked alternately in the clutch cover. The package is composed of seven fiber discs, seven metal plates, one thin fiber plate, one damper springtime and one damper spring chair. The fiber discs (clutch traveling plate designs) are keyed to the clutch i465 black layer, which is usually driven by the motor through the primary chain. The metal discs (clutch driven plate designs) are usually keyed to the clutch i465 black hub, which generates the back wheel through the transmission and secondary commute belt. When the clutch is involved (clutch i465 black lever launched), the diaphragm spring applies strong force against the pressure dish. The stress plate after that squeezes the clutch plates together leading to the discs to switch as a one device.
The result is certainly that the rotational push of the clutch system shell is usually sent through the clutch i465 black dishes to the clutch system hub. Mainly because longer as the transmitting is established in a forwards gear, strength from the engine will end up being sent to the back wheel. When the clutch system is disengaged (clutch system lever drawn to remaining handlebar hold), the pressure plate is certainly pulled outward (by clutch i465 black cable activity) against the diaphragm spring, thus compressing the diaphragm spring.
With the stress plate retracted, strong inward force no longer squeezes the clutch plates collectively. The fiber plates are now free to turn at a different relative quickness than that of the steel china (i.elizabeth.
Slippage between the clutch i465 black plates happens). The outcome can be that the rotational push of the clutch shell is no more fully sent through the 'unlocked' clutch plates to the clutch system centre. The engine is free to turn at a various quickness than the rear wheel. Clutch i465 black TROUBLESHOOTING Clutch system SLIPS.
Incorrect clutch launch adjustment. Examine and adapt clutch release mechanism.
Used clutch plate designs. Check assistance wear limits. Replace china. Hasp hardlock emulator. CLUTCH DRAGS.
Wrong clutch launch adjustment. Check and change clutch discharge mechanism.
Worn clutch launch ramps or tennis balls. Replace discharge ramps and/or projectiles. Warped clutch steel china. Replace clutch steel china. Knife worn or broken clutch equipment splines. Replace clutch equipment or center as required. Overfilled primary.
Drain lubricant to correct level. Data compresion Check Satisfactory engine performance depends upon a mechanically good motor. In several cases, unsatisfactory performance can be caused by combustion holding chamber loss. A compression test can help figure out the source of canister leakage. A appropriate compression test should be carried out with the engine at normal operating temperatures when feasible. Disconnect spark plug wires.
Clean around spark plug base and get rid of spark attaches. Connect CYLINDER COMPRESSION GAUGE (Part No. HD-33223-1) to front cylinder per manufacturer's instructions. Make certain transmission is in natural. With throttle plate in broad open position, crank motor frequently through 5 to 7 full compression strokes. Note measure psychic readings at the finish of the first and last compression strokes.
Record check results. Connect Canister COMPRESSION Measure to back canister and repeat Steps 3 and 4.
Data compresion is regular if final readings are usually within the variety selected in Table 3-22, and do not reveal more than a 10 psi (0.689 Bar) variance between cylinders. If compression is certainly below 100 psi (6.89 Bar) for 1100 cc engines or 150 psi (10.3 Bar) for 1200 cc motors. Inject approximately 1/2 oz. (15 ml) SAE 30 engine essential oil into each cylinder and replicate the data compresion exams on both cylinders. Blood pressure measurements that are usually considerably higher during the second test reveal put on piston rings. Notice: After completing the compression test(s) and reinstalling the spark plugs, create sure the throttle dish is in the closed position before starting the motor.
COMPRESSION TEST RESULTS RING TROUBLE Compression reduced on first stroke, is inclined to build up on the adhering to strokes, but will not reach regular. Improves considerably when oil is included to canister. VALVE TROUBLE Compression low on initial stroke, does not build up significantly on following strokes. Does not improve considerably with the addition of oil.
Check out for proper pushrod length. HEAD GASKET Drip Same response as valve difficulty. CYLINDER Loss Check The cylinder leakage check pinpoints motor problems like seeping valves, put on, damaged or stuck piston bands and taken mind gaskets.The cylinder loss tester does apply compressed air flow to the cylinder at a controlled stress and volume and actions the pct of loss from the cylinder. Use CYLINDER LEAKDOWN TESTER and adhere to the specific instructions provided with the tester.
The adhering to are usually some general instructions that apply to Honda motorbike motors: 1. Work engine until it gets to normal operating temperature. Clean dirt from around spark attaches and remove the spark plugs. Get rid of the air flow cleaner and established the throttle in the wide open position. The piston in the cylinder being examined must end up being at best dead middle of compression heart stroke (both valves closed) during the test.
To keep the engine from switching over when atmosphere pressure is usually applied to the cylinder, engage transmitting in fifth gear and locking mechanism the rear brake. Take note: Before executing the cylinder leakage test, verify that thé tester itself will be free from loss to get the almost all accurate test results. With a cleaning soap solution used around all tester fixtures, link the cylinder leakdown tester to the compacted air resource and look for any bubbles that would reveal loss from the tester. Adhering to the producer's guidelines, perform a canister leakage test on the front side cylinder. Create a note of the percent of leakage.
Leakage higher than 12% indicates internal engine troubles. Listen for air flow leaks at induction component intake, exhaust system pipe and head gasket.
Air flow avoiding through the induction module signifies a seeping consumption valve. Air flow escaping through the exhaust pipe shows a leaking exhaust system valve. Be aware: If air is getting away through valves, check out push pole length. Do it again process on rear cylinder. NOTE: After finishing the cylinder leakage test(beds) and reinstalling the spark plugs, make certain the throttle dish can be in the closed placement before beginning the motor. DIAGNOSING Smoking cigarettes Motor OR HIGH OIL Usage Check Prior to Canister Head Removal 1.
Essential oil tank overfilled. Essential oil carryover. Breather hose restricted. Restricted essential oil filter. Verify After Canister Head Elimination 1. Oil return passages for clogging. Valve guidebook closes.
Valve guide to valve come measurement. Gasket surface area of both head and canister. Cylinder mind sending your line's porosity permitting essential oil to remove into combustion chamber. O-ring broken or missing from essential oil pump/crankcase junction. When an engine needs maintenance, it can be not continually possible to figure out definitely beforehand whether fix is achievable with just cylinder heads, cylinders, and pistons disassembled, or whether full motor disassembly is certainly required for crankcase fix.
Most commonly, just cylinder mind and cylinder repair is required (valves, rings, piston, etc.), and it can be recommended process to service these devices first, permitting motor crankcase to remain in frame. Stick to the procedure discussed in Best END OVERHAUL: DISASSEMBLY, Stripping Motorcycle for Best End Maintenance, to remove motorcycle for removal of cylinder mind, cylinders, and pistóns. After disassembling 'higher finish' just, it may become found that crankcase fix is essential; this demands removal of motor crankcase from chassis defined in REMOVING Motor FROM CHASSIS. OIL LAMP - Essential oil Lighting TROUBLESHOOTING OIL PRESSURE Indication LAMP Remains on at rates of speed above nonproductive. Empty essential oil tank.
Clogged feed collection (ice and sludge, freezing temperature ranges). Air-bound essential oil collection. Grounded essential oil pressure change cable. Malfunctioning oil pressure switch.
Diluted oil. Malfunctioning check out valve. Malfunctioning or improperly installed stress relief valve.
Flickers at idle. Incorrect idle acceleration. Malfunctioning or incorrectly installed check out valve.
Malfunctioning or incorrectly installed stress reduction valve. Does not shine when ignition is flipped on (previous to operating engine). Malfunctioning indication switch. Breakdown in wiring. Burned-out signal bulb. Deceased battery. ENGINE TROUBLESHOOTING The Troubleshooting section is definitely a manual to diagnose problems.
Examine the appropriate sections of your Honda guide before performing any work. Improper maintenance and/or upkeep could result in dying or critical damage.
The pursuing check listing of probable operating problems and their probable leads to will become helpful in maintaining a motorbike in good operating problem. Even more than one of these circumstances may be causing the difficulty and all should end up being carefully examined. ENGINE Starter Motor Does Not Function or Does Not Switch Engine Over 1. Motor run change in OFF placement. Ignition switch not really in IGNITION place. Discharged battery pack, loosened or corroded connections (solenoid chatters).
Starter handle circuit, exchange, or solenoid faulty. Electric powered starter shaft pinion equipment not interesting or overrunning clutch system slipping.
Loan provider Angle Sensor tripped and ignition change not really cycled OFF after that back to IGNITION place. Security program activated. Motorbike in gear and clutch system not taken in.
Main fuse not really in place. Jiffy remain down and transmission in equipment. Engine Spins Over But Does Not Start 1.
Energy tank clean. Fuel filtration system clogged. Plugged gasoline injectors. Dismissed battery, loose or damaged battery airport contacts. Fouled spark plugs. Spark plug cables in poor situation and shorting, cable connection connections loose or cables linked to wrong cylinders. Ignition time incorrect credited to faulty coils, ECM or sensors (TMAP, CKP).
Bank Position Sensor tripped and ignition/lighting key switch not really cycled OFF after that back again to IGNITION. Broken cable or shed wire link at ignition coil, battery pack or ECM connector.
Staying or broken valve(s) or incorrect length push rod(h). Engine lubricant too heavy (winter procedure). Notice: For cool weather starts, continually disengage clutch. Starts Hard 1. Interest plugs in bad condition, have got improper distance or are partially fouled. Interest plug wires in bad condition.
Battery pack nearly dismissed. Damaged cable or free wire link at battery power airport terminal, ignition coils or ECM connector.
Ignition not functioning correctly (probable sensor failing). Faulty ignition coil.
Fuel container filler cap vent plugged or fuel line shut off restricting fuel stream. Drinking water or grime in energy system. Intake air drip.
Partially plugged energy injectors. Valves sticking. Air cleaner EVAP flapper (if outfitted) trapped close up or inoperative. Motor lubricant too heavy (winter season operation). NOTE: For cool weather begins, generally disengage clutch i465 black. Begins But Works Irregularly or Misses 1. Spark attaches in bad condition or partially fouled.
Interest plug cables in poor situation and shorting or leaking. Spark plug gap too near or as well wide. Faulty ignition coil, ECM, or sénsor (TMAP, CKP, ET or U2).
Battery nearly released. Damaged wire or loose connection at battery pack terminals, ignition coils or ECM connector.
Intermittent brief circuit credited to broken wire insulation. Water or dust in fuel system.
Gas tank vent out system connected. Air outflow at intake manifold or surroundings cleaner. Partially plugged gas injectors. Damaged intake or exhaust system valve(h). Weak or damaged valve springs. Wrong valve time. Atmosphere cleaner EVAP flapper (if outfitted) trapped shut or inoperative.
Interest Put Fouls Frequently 1. Wrong spark put. Piston bands badly put on or damaged. Fuel mixture too wealthy. Valve guides or closes badly put on or broken.
Pre-Ignition ór Detonation (Knocks ór Pings) 1. Excessive carbon down payment on piston head or in combustion holding chamber. Incorrect heat range spark plug.
Faulty spark plug(t). Ignition time sophisticated. ECM or receptors (CKP, ET ór TMAP) defective. Gasoline octane ranking too low. Intake question vacuum leak.
Check Motor Light Illuminates During Operation Overheating 1. Insufficient oil offer or essential oil not circulating. Insufficient atmosphere flow over engine. Seeping valve(s). Heavy carbon tissue.
Ignition timing retarded. ECM ór sénsor (CKP, TMAP) défective. Valve Train Sound 1. Low oil stress caused by oil feed tube not functioning properly or oil passages blocked. Faulty hydraulic lifter(s i9000). Leaning push fishing rod(h). Wrong push pole length.
Camera(s), cam gear(beds), or cam bushing(s i9000) used. Rocker arm rest joining on base. Valve staying in tutorial. Excessive Vibration 1. Stabilizer links used or shed, or stabilizer hyperlink brackets unfastened or broken.
Isolators used or isolator bolts loosened or broken. Isolator installation brackets (remaining part of vehicle) loose or broken. Rubber mounts loosely or used. Rear shell pivot base fasteners loosely. Front motor mounting bolts loose. Wear out system presenting or hitting frame. Engine/transmission and rear wheel not really aligned properly.
Broken framework. Ignition time advanced credited to faulty sensor inputs (CKP, TMAP)/poorly tuned engine. Primary string badly used or hyperlinks tight as a result of inadequate lubrication or misalignment. Tires not lined up, rims curved, or tires used or broken. Internal engine problem.
LUBRICATION Program Oil Will Not Return To Oil Container 1. Essential oil tank unfilled. Oil cylinder gerotors broken; oil push not working. Restricted essential oil hoses or fixtures. Restricted essential oil filter. Engine Uses Too Much Oil Or Cigarettes Excessively 1.
Piston rings badly put on or damaged. Valve manual(s) or close off(t) worn or damaged. Restricted oil filter. Essential oil tank overfilled. Limited oil come back line to tank. Restricted rest operation. Plugged crankcase scavenge slot.
Oil diluted with fuel. Engine Leaks Oil From Instances, Push Rods, Hoses, Etc. Imperfect close off at gaskets, force rod cover, washers, etc. Restricted oil come back hose pipe to tank.
Restricted rest passage(s) to air flow cleaner. Restricted oil filtration system. Oil container overfilled.
Low Oil Pressure 1. Oil container underfilled. Faulty reduced oil stress switch. Worn essential oil pump motor gerotor(beds). Worn pinion shaft drive equipment.
Restricted give food to hose pipe from oil tank. Limited high-pressure feed hose to essential oil filter casing. Essential oil diluted with gasoline. Oil sidestep plunger stuck open. Large Oil Stress 1. Essential oil tank overfilled. Limited oil tank return hose pipe.
Oil sidestep plunger trapped shut. ELECTRICAL SYSTEM Alternator Does Not Charge 1. Voltage regulator component not grounded. Motor ground cable loosely or damaged. Faulty voltage regulator module.
Loose or damaged cables in getting routine. Faulty stator and/or rotor. Alternator Charge Rate Is definitely Below Normal 1. Weak or damaged battery. Unfastened connections. Faulty voltage regulator module. Faulty stator and/or rotor.
Speedometer Operates Erratically 1. Polluted vehicle quickness sensor (remove sensor and clean off metal contaminants). Shed connections. Transmitting Adjustments Hard 1. Clutch system dragging slightly. Transmitting lubricant degree too high.
Transmission lubricant too large (wintertime operation). Shifter return spring (inside main chaincase) bent or broken. Leaning shifter rod. Shifter forks jumped or broken.
Corners worn off gear canines and shifter canine rings. Jumps Out Of Equipment 1. Shifter engaging parts (inside of transmission) terribly worn and rounded. Shifter forks bent. Shifter drum broken/worn. Broken gears. Clutch system Slides 1.
Clutch controls incorrectly adjusted. Worn friction discs. Insufficient clutch spring stress. Clutch i465 black Drags Or even Does Not Launch 1. Lubricant degree too high in major chaincase.
Clutch controls improperly adjusted. Clutch plate designs warped. Insufficient clutch spring stress. Primary string badly out of allignment or as well tight. Clutch Chatters Scrubbing plates or steel plates worn, warped or dragging. Tires improperly inflated. Notice TIRES AND WHEELS.
Do not overinflate. Reduce steering wheel axle nut products. Tighten to suggested torque standards. Improper automobile positioning: back wheel out of alignment with framework and front wheel. Rims and tires out-of-true sideways. Rims and tires out-of-round or unusual with centre.
Loose spokes (models with laced wheels). Abnormal or peaked front side tire stand wear. Broken tires or improper front-rear car tire combination. Tire and steering wheel unbalanced.
Steerage mind bearings incorrectly modified or rough or used bearings and events. Surprise absorbers damaged or put on and not functioning normally. Heavy front side end loading. Non-standard products on the front end (like as heavy stereo receivers, additional lighting equipment, or luggage) is inclined to trigger unstable handling. Engine supports and/or stabilizer links loose, worn or broken. Rear shell pivot assembly: improperly tightened or assembled, or loose, pitted or damaged pivot bearings.
BRAKES Brake Does Not really Hold Normally 1. Expert cylinder water tank reduced on fluid, system leaking or pads worn. Brake pedal system consists of air bubbles. Master canister or caliper piston closes used or parts damaged. Brake pedal pads contaminated with grease or oil. Brake pads badly worn. Brake disk badly put on or warped.
Brake pedal drags - insufficient brake pedal or hand lever freeplay, caliper piston put on or broken, or extreme brake fluid in reservoir. Brake fades credited to heat up develop up - brake pedal pads hauling or extreme braking. Brake pedal fluid outflow when under pressure.