How to change fuel filter on a 2005 honda 420 4x4 and where is it located/

Have you checked the Crankcase seals? I have 2 Big Bosses with 250's. 1989 + 1992

Both were terrible at starting and idling....after much troubleshooting I finally changed the crankshaft seals. (Which btw looked fine from the outside!) machines can be Cold now and will start 2 or 3rd pull with the cord now. Idle perfectly.

Also the oil injection system stopped working intermittently. Machine would just quit.....crank and crank it forever. So I just started using 32/1 mix and unhooked the Oil Injection cable from the Throttle.

adjust the throttle to max

STOP holding the starter button down!!!!!!!!!!!!!!!!!!!.. Its NOT really running..
My first guess is the starter needs some TLC..a professional rebuild..they are not hard to do.
Diagnosing electrical issues over the internet is hard... I will think on this some more and repost if I come up with anything..sorry..

Hello,
There only three things a good engine needs to have to run:

1. Adequate compression
2. A properly timed spark
3. The proper air/gas ratio - delivered

.. one of these is missing...

Fuel supply problem somewhere. How is the float adjustment and the float valve? I'd guess the level adjustment is too low.

sounds like the coil is weak or the electronic spark box is goin fuel filter been changed ?right gap on the Plugs? need more imfo on it to do more thks

could be alot of things but start your daig.by determining if anything has changed fuel related... example.... could some water or bad gas recently been added to your gas tank or has poor fuel made it into your carb.float bowl?? Could some trash from fuel clogged a jet in the carb.? Also,some spark type problems are heat related. i.e. pulse coil generator pick-up

hi, sounds like a stuck float in your carb. Try tapping the carb briskly! sounds like gas is slowly dripping in the bowl overnight and you burn it the next day. I would take the bowl off and see how much gas pours out. It should come out like a light stream of pee. Could be cloged fuel filter or a gumed up or broken float, carb rebuild kits are cheap.
Good Luck!

It could be a clog fuel filter. you can start in changing the filter and clean the fuel system.


ITP tires

Hey,, take this to a QUALIFIED PROFESSIONAL and have them c l e a n and set the carburetor,,,,,