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View Full Version : duncan pc4000 440 kit


400EXracer74
03-17-2005, 08:56 PM
anyone have it? what are peoples experiances? and what else should i get at the same time to make it run well?
shamisc
03-17-2005, 09:49 PM
cam, head job, carb, etc. Quadjunkies just got one. I'm not sure if she posted the results.:confused:
400EXracer74
03-17-2005, 09:52 PM
what do you mean by head job? like what done to it? and is there anything else the ect. doesnt really explain much. i dont know anything about engine mods.
ghak99
03-18-2005, 09:32 AM
In order to get all the potential power out of the 440 bore, you should look into the following.


Port & Polishing the head to let it flow better
Possibly bigger valves
Cam & Heavier Valve Springs
Good Carb & Pipe
Good Timing Chain
You might need a clutch and heavier springs to get the power to the ground

This should get you started!;)
400EXracer74
03-18-2005, 10:55 AM
should i buy all that stuff first and put that in the engine or should i just do it all at the same time?
K_Fulk
03-18-2005, 12:41 PM
I would do everything at once.
ghak99
03-18-2005, 01:32 PM
If you have the money to do it all at once, I would.
QuadJunkies
03-23-2005, 12:47 AM
So far Im liking it.. It works for me ,but not for beating YFZ's and 450r's if your a fast rider though.. My ole man tried to race in local Pro and got beat but he didnt get TORN ,just cant be as competitive as the big dogs.

I went with a 450r carb as well and all the other mods I have listed on mine ,I still need to upgrade my clutch backet in the future and I have NO PROBLEM with getting power planted!!! :blah: :macho