Question about 2004 Yamaha YZ 450 F

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YZ450 only starts when pushed started, once on header get's RED

I have a YZ450 that did not move for over 6 months no more than a year. I recently put in new spark plug, new battery, oil, coolant, etc...the electric start wont get it running but when i push start it it turns on. Sounds good but after about 10min the header gets really red and hot. How can I fix that???

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Your carb needs cleaned. Primary circuit or choke circuit are blocked. When you push start your bike and jump on it first reaction is to twist throttle. after it runs for a while the fuel mixture is incorrect and will make it run lean/rich which in turn heats motor up. I would guess rubber seal in choke circuit is stuck. If you clean carb it should solve your problem. Good luck and have a good ride.

Posted on Feb 03, 2009

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Hi Gabriel,
You have to check your cooling system!
with regards to the starter motor ...does it spin the engine when you hit the button?
Perform a compression test too.
Hope you have used the correct grade of engine oil .


Knight.

Posted on Feb 03, 2009

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1 Answer

Overheating


Hi, Anonymous and the usual suspects are:
1. Engine oil level and SAE weight are too low or not circulating.
2. Insufficient or blocked air flow over the engine.
3. Heavy combustion chamber carbon deposits.
4. Ignition timing retarded due to faulty MAP, CKP, or CMP sensor.
5. Carburetor jetted too lean.
6. Leaking intake or exhaust valve.
7. Water coolant old or low change every two years.
8. Water pump failure.
9. Radiator clogged, cap loose or malfunctioning.
10. Radiator fans not coming on.
11. Clutch slipping, brakes dragging, heavy load, towing a trailer etc.
12. Idling too long without moving.
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2002 saturn ignition coil overheating


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Jun 11, 2012 | Saturn SL Cars & Trucks

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Leaking oil from value cover how do u change them


Front is simple. Remove the spark plug cover. Remove the 10 bolts that hold it in, carefully pry it up. Remove and clean the cover put in the new gasket but put a bead of RTV in the channel for the gasket first let it set then put the gasket in and torque it down to specs. There is a sequence, you wnana move fromt he center outwards.

The rear is much more complicated, you need to remove the upper intake plenum, TB, associated coolant lines, vacuum lines etc. It can take upwards of 5-6 hours if you arent familar with that type of stuff.

Jul 22, 2011 | 1995 Nissan Maxima

1 Answer

My mother-in-law put gasoline in the oil fill spout. tiller sat like this for 6 months. was not started. I have drained oil/gas, but still can't get to start


This is a new for me. I suspect that removing the spark plug to put a squirt or two of engine oil on top of piston to lubricate and raise the compression would be a good start. Insure that the spark plug is clean and dry and sparking when pulling the starter rope. Reinstall spark plug and try again. If no success remove air cleaner and with choke open and throttle open give a short squirt (1/2 second only) of ether in intake orfice and start right away. If engine wants to fire the carb. is plugged up with old fuel and will most likely need to be cleaned our rebuilt. Note: 6 months in storage with the fuel not drained or at least stabilized is a major cause of small engines that will not start.

Feb 21, 2011 | Garden

2 Answers

How often should I change the Transmission fluid, normal driving ? Thank you Gary


It's listed in your owner's manual. Schedule A is normal driving conditions.
SCHEDULE "A"
7,500 miles (12 000km) or at 6 months
- Change engine oil.
- Replace engine oil filter.

15,000 miles (24 000km) or at 12 months
- Change engine oil.
- Replace engine oil filter.

22,500 miles (36 000km) or at 18 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

30,000 miles (48 000km) or at 24 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Drain and refill automatic transmission fluid and filter (4.7L).

37,500 miles (60 000km) or at 30 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case fluid.

45,000 miles (72 000km) or at 36 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant at 36 months, regardless of mileage.

52,500 miles (84 000km) or at 42 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if not done at 46 months.

60,000 miles (96 000km) or at 48 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary (5.2L/5.9L).
- Drain and refill automatic transmission fluid (4.7L).

67,500 miles (108 000km) or at 54 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

75,000 miles (120 000km) or at 60 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

82,500 miles (132 000km) or at 66 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.

90,000 miles (144 000km) or at 72 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Inspect front wheel bearings.
- Inspect brake linings.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

97,500 miles (156 000km) or at 78 months
- Change engine oil.
- Replace engine oil filter.

105,000 miles (168 000km) or at 84 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

112,500 miles (181 000km) or at 90 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.

120,000 miles (192 000km) or at 96 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

Thanks for using FixYa -a 4 THUMBS rating is appreciated for answering your FREE question.

Sep 05, 2010 | 2001 Dodge Durango

2 Answers

Preventative maintnance


Not knowing what you have done and when, below are the normal intervals for Checks and Replacements:
If you have not done something in a while, or can't remember when it was done: go ahead and do it now to keep your vehicle on schedule.
Every 250 miles: (Every Week)
Check Automatic Transmission Fluid Level.
Check Battery Electrolyte Level, Post and Connections
Check Brake Fluid Level.
Check Engine Oil Level.
Check Engine Level + Reservoir
Check Horn Function.
Check Operation(s) of ALL Lights.
Check Power Steering Fluid Level
Check Tires and Air Pressure Levels (Don't Forget the Spare)
Check Windshied Fluid Level
Every 3,000 miles: (Every 3 to 4 Months)
Change Oil and Filter.
Every 7,500 miles: (Every 6-months)
Rotate the Tires.
Check and Clean Battery
Check Cooling System Hoses & Connections for Leaks & Damage,
Check the Exhaust System.
Check the Condition of All Vacuum Hoses & Connections.
Check Wiper Blades. Replace if needed.
Check for "play" in Steering Linkages and Balljoints.
Every 9,000 miles: (Every 9-months)
Check the Brakes: Pads, Rotors, Calipers and Hoses.
Lubricate the Tie Rod Ends and Ball Joints.
Check the Drive Axles, CV Joint Boots: Inner and Outer.
Check Suspension: Coils, Struts and Shocks.
Every 15,000 miles: (Every Year)
Replace Air Filter
Change Automatic Fluid and Filter.
Check Fuel System Hoses & Lines and Connections.
Check Drivebelts/Surpentine Belts.
Every 30,000 miles: (Every 2-Years)
Drain and Replace the Engine Coolant Fluid
Flush Coolant System.
Check and Replace PVC Valve.
Replace Spark Plugs.
Replace Ignition Wires
Check Distributor/Electronic Ignition Coil.
Check Operation of ALL Seatbelts.
Check EVAP Emission System Hoses and Connections
Every 60,000 miles:
Replace Fuel Filter.

Let me know if this helped, or if you have any additional information or questions. Contact me at FixYa.com!

Mar 03, 2010 | 2002 Chrysler Voyager

1 Answer

Left solstice in garage 6 months when i whent to open door battery was flat had to open door with key manualy alarm whent off since then car does not drive well any sugestions


Hi

Have you put new fuel in the car? fuel left for 6mths wont be very good. and most likely will need a service, new plugs etc etc, change the oil and check the battery connections.

Hope this helps
Regards
Dan


Feb 13, 2010 | 2007 Pontiac Solstice Convertible

2 Answers

Car wont cank over


check for spark at spark plugs, spray some carburator cleaner in the air filter housing then try to start the engine and watch oil pressure

Jan 03, 2009 | 1996 Ford Thunderbird LX

1 Answer

Car is not wanting to accelerate


Did you check the catylactic convert may be plugged

Dec 03, 2008 | 2001 Chevrolet Corvette

1 Answer

COMPLELETY BROKEN


noticed the oil needed to be changed. It started back up and ran fine for a day then broke down again had to call a tow truck to get home. I changed the oil today with the recommended oil and now its completely dead. New oil new battery new spark plugs, new coolant and a full tank of gas and its worse than when i got it 2 months ago. Don't know what to do anymore. Help me out friends. Thanks. ,Completely dead? Do the lights come on with the key? If not, Then you either have a blown fuse or bad battery connection. A loose connection will cause problems like you describe. New battery or not, I would remove the cables, reinstall to make sure. Is the battery charged? Maybe you have a bad charging system or fuse. A 2006 shouldn't have needed a new battery unless you (or someone lese) left the lights on and totally drained it. My last battery lasted 7 years. Check the electrolyte level in the battery if it isn't a sealed one. Add distilled water if it is low.,,,

Nov 10, 2008 | 2007 HM CRE F490X I

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