I have a 1987 yamaha 350 motot 4 that needs a new cdi box.. The 87 yamaha warrior cdi box looks exatly the same.. Does anyone know if it will work?
I would call the dealer and have them check the part numbers. If the part numbers match then yes you can. Alot of the time the only difference is the connector. Yamaha has alot of interchangeable parts but the safest way is to verify the part numbers. If you just " try it " and they don't match you just may have fried the cdi box and you'll be trying to troubleshoot a bad part that you think is bad.
I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_5bac37c3cb991fdb
SOURCE: QUAD QUESTION! 1998 yamaha warrior 350 bogging down
sounds like fuel starvation
do you have a petcock plugging or a dirty carb?
pull the fuel line and check flow
later paul
SOURCE: 2001 yamaha warrior valve adjustment
hello
with the cylinder set at top dead center compression. using a feeler gauge between the tappets and the valves there should be .002-.003in clearance on the intake valves, and .006-.007in. clearance on the exhaust valves. thank you.
SOURCE: How do I adjust the valves on my 2003 Yamaha Warrior YFM 350X?
first you need to remove everything that covers your valve covers(gas tank etc.) remove the intake valve cover,and the rotor nut and timing plug.set the engine a t.d.c.(top dead center)fit a socket onto the rotor nut and turn it counterclockwise until the"I" mark appears align it with the index mark in the timing hole.use a flat feeler gauge between the top of the valve and the adjuster.loosen the locknut and turn the adjuster just until you feel resistance on the feeler guage.hold the adjuster and tighten the lock nut down.i can not tell you the min.clearance spec to your quad since i have a 660 raptor.try using the smallest clearance number.
SOURCE: My yamaha 350 warrior, and it wont start, Do i
adjustment of valve reasonably simple, remove tappet covers, remove small bung from mag cover top and rotate engine until you are able to see a capital T on the flywheel, providing whist you rotated engine it was on the correct stroke the inlet valve should have just closed when you saw the T. this is the correct stroke. loosen tappets lock nuts, adjust the tappets so you can just move it with your fingers, if your want to get technical the clearances between tappet and valve should be about .05mm
SOURCE: QUAD QUESTION! 1998 yamaha warrior 350 bogging down
I had a problem somewhat the same.
Make sure the air-intake boot has no holes in it.
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