Warrior 350 questions

[Bristow907]

Hey everyone, new to the forum, and new to wheelers. I just got off dirtbikes and decided to make the jump to a wheeler. I traded my dirtbike for a 96 warrior 350 that was in desperate need of work. The owner before me told me a valve had probably broken and just needed to be replaced, which was why it wasn't starting. So I took on this project thinking it'd only be 100 bucks to fix. Turns out when I had the motor apart, it was just more then a valve. One of the valves did indeed break, and decided to take out the piston, as well as the head. So, I ordered a head off ebay, and an oversized piston because it has been bored out to .40 over. It had a stage 1 hot cam in it, which clearly someone didn't know how to setup, which could have been the reason for the mess it made inside. I got all my parts and had to switch the timing around because of the difference between the stock cam and the hotcam. Got everything back together and took it for a nice little break in ride. My question though, I don't seem to have all the power I should be expecting from something that has had these few modifications, seems like my buddies dvx250 was able to get ahead of me a little bit and I had a bit of a struggle to keep up. I'm not sure if maybe thats due to me just going easy on the engine, but surely seems like I should have a bit more power. The air filter is a mess and needs to be replaced, but I don't think that would have anything to do with the lack of power. Any ideas?

 

[Gen1Pat]

Thrashed air filter will rob lots of power! If you can't get enough air to make the proper air/fuel mixture, it'll run on the rich side and produce less power. Get that changed and you should see a big difference. Also, what do you mean you had to switch the timing? There is only one way to time these bikes no matter what cam it has. Unless you have an adjustable cam sprocket, the "T" on the flywheel will aligned with the notch in the inspection hole, and the mark on the cam gear will be aligned with the "bump" on the head at about the 11oclockish position. If the timing is off it is most likely due to a streched timing chain, or something is a miss.

 

[Bristow907]

I'll def get a new filter asap. The timing gear has the notch that is supposed to be roughly in the 11-12 oclock position, but because the cam does not have the same lobe positioning as the stock cam, so the timing needed to be backwards in order for it to work properly. Which was probably the reason why the valve had snapped last time because the lobes didn't line up and causing improper valve movement. The bike runs fine, little high on the idle but adjusting the idle screw just right has been a little tricky.