2004 Yamaha YZ 450 F - Answered Questions & Fixed issues


10 N-M or 7.2 Ft/Lbs. Just a little more than "snug".

2004 Yamaha YZ... | Answered on Mar 22, 2018 | 485 views


the weep hole was designed to let you know that the water pump is damaged ,shot, kaput the following links are more technical
COMMON WATER PUMP FAILURES THEIR CAUSES FlowKooler Hi Flow Water Pumps Why Is There Small Hole in Water Pump eHow

2004 Yamaha YZ... | Answered on Aug 11, 2016 | 332 views


Take compressed air and blow air up into the the weep hole. For some odd reason it made 3 different CRF's stop leaking. It's worth a shot.

2004 Yamaha YZ... | Answered on Feb 06, 2019 | 873 views


Look more closely. The first two, from left to right, are joined with a horizontal bar, forming the previously mentioned "H". The third vertical line is the "I", and the TDC mark.

2004 Yamaha YZ... | Answered on Aug 09, 2016 | 32 views


Put the bike in 4th or 5th gear, and place a board across the swing arm, through the spokes, so it lays across both sides of the arm as near the rim as possible. Then crank the sprocket off. It's a right hand thread, so turn it counter-clockwise to loosen.

2004 Yamaha YZ... | Answered on Aug 09, 2016 | 73 views


Whats the question?

2004 Yamaha YZ... | Answered on Aug 09, 2016 | 19 views


Turn both the air screw and throttle screw inward until they LIGHTLY seat. Now back each one outward one and one half turns. This is the factory setting. I am going to give you a web site where you can download a free PDF factory service manual for a YZ450FR. I believe the model is a bit different but the carbs are the same.

Go to this site and you can download a free PDF service manual. The site may take up to 25 seconds to fully load the list of manuals. It is worth the wait. www.carlsalter.com/motorcycle-manuals.asp The service procedures are there in detail and a lot of diagrams and photos. Don't mess with the pilot screw unless you have to, Part #11 in the diagram.
Can I get a Very Helpful" rating out of this?

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2004 Yamaha YZ... | Answered on Mar 04, 2015 | 19,417 views


You can look in this directory: http://motorcycles.no-ip.org/

2004 Yamaha YZ... | Answered on Jul 15, 2014 | 743 views


check carb adjustments and air filters

2004 Yamaha YZ... | Answered on Jun 22, 2014 | 31 views


the screws on the carb are for idle speed , and air mixture, the air mixture it underneath,but it really only affects mixture at idle speed.
you may need to try raising the slide needle, or go up a size in the main jet, do one at a time and keep notes about the changes and results

2004 Yamaha YZ... | Answered on Jun 18, 2014 | 838 views


It should be the small plug up near the steering head with the dip stick, you need a small funnel, use only motorcycle oil, car oil can cause clutch slip.They hold about 1.1 litres . you then need to start it for a couple of minutes then check with the dip stick

2004 Yamaha YZ... | Answered on Jun 18, 2014 | 279 views


could be blocked pilot jet inside the carb. Strip it all down and slean jets and holes. also could have a vacuum leak on the motor side of the carb.

2004 Yamaha YZ... | Answered on Apr 16, 2014 | 148 views


Depends on the type of carb, but you must remove needle and there is a sir-clip with slots on the top of the needle. it can be poped off and moved up and down on needle. may have 5 different spots on it. Factory setting will be the center slot. This will enrich the mix or lean it out.
Needle adjustment

2004 Yamaha YZ... | Answered on Apr 16, 2014 | 168 views


Make sure everything is connected and there is a good fuse in place. To test the coil you'll want a Ohms meter and a Volt meter as well as the service manual! Make sure the readings on the meters match the ones in the service manual. Cheers!

2004 Yamaha YZ... | Answered on Jan 20, 2014 | 446 views


sounds like it's full of carbon, which is burning! or if on header pipes your mixtures are too weak eg blocked jets or intake air leaks

2004 Yamaha YZ... | Answered on Jan 14, 2014 | 81 views


youve got air in the system , bleed it and also check thermostat not dirty or sticking !

2004 Yamaha YZ... | Answered on Jan 10, 2014 | 65 views


HI Butch,



you need to clean your radiator.

go for the repair shop .



regards.

nuwan

2004 Yamaha YZ... | Answered on Jan 10, 2014 | 121 views

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