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Honda Fourtrax 300 troubles

1230 Views 15 Replies 4 Participants Last post by  WinningHonda’s
So I’m new here but you guys have helped me a lot just by reading. But I’ve got some issues that have me stumped. This 99 Honda Fourtrax was my first wheeler ever. Ran excellent for a year but then found out I was taught incorrectly on putting the oil filter in. Ran for a YEAR of daily riding and heavy abuse in the mud. FINALLY she started ticking bad. Didn’t know this was a very bad sign so I kept riding for probably another 6 months and finally one of my buddies pointed it out. Assuming top end is fried and need a complete rebuild? Still starts up and runs beautifully besides the major power loss in the higher gears. And then I drowned her finally after two years of playing in deep mud and ponds. Air box was full drained it started her up (probably my worst decision) and she started right up but died when I hit the throttle. Got towed out by a buddy replaced the carb entirely. Changed the oil and filter twice. Checked it for a week and stayed Golden. Well now she’s milky and the only reason I realized was because I had vapor looking smoke rolling out the crankcase vent line. Stopped riding it once this happened. What caused this? I didn’t get all the water out ? I pulled the spark plug and turned her over multiple times and hardly
Any water came out. Also I have pure white oil on the inside of my valve cover? Appreciate if even one person reads and helps me out with my Novel of misery lol
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I’m assuming that’s the only way to truly tell if my bottom end is trashed is to pull it apart ? Also my front brakes and rear brakes are shot. I’ve changed the pads all around, new cables, new MC, bled them a million times correctly with a bungee on the lever while opening the bleeder. I adjusted the pistons in the front drum and got them to move with no pads excellently, but with pads just the slightest. Pistons are shot ?
Very easy to trap air just forward of the MC—pull that rubber puck out and you’ll see two holes—clear them if dirty. Jiggle the lever and see if you can get the air to release—you’ll see bubbles.
Cam lobes and rockers badly galled
@Goober when I was bleeding them with the brand new MC when I squeezed the lever it didn’t quite get hard but it shot brake fluid out of the hole on bottom everytime... with force lol made a mess. So maybe I did something wrong ?
Jiggle! Jiggle the lever.
Notice your hose may be slightly higher than your mc.
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