[blowfishRus6]

i know its probably not the most sought after thing, but i want to do it.

its an 88' 300 fourtrax. runs damn good but like everything i drive im heavy on the throttle and want more power.

almost all of my riding is done on trails, dont really hit any mud. so running 40-45mph is always good, dont really want to reduce the gears.

ive been looking at exhaust and have heard of tractor exhaust (and well there cheap, thats always a plus) the fo-4 seems like the one i would want, i want one with a baffle in it, dont want it to be crazy loud. i have also heard the 300ex (i guess thats the sports atv? sorry guys....) has a bigger head pipe (i can go measure mine if need be to compare) maybe that would help also. i also want to get a better filter/intake set up on it and run a filter condom so i can run it with the lid off.

do they make a clutch kit for the utility 300?? and would that help with trail riding?? even if it just gives better throttle response that would be cool.

i wanna put an oil cooler on it too, it feels like it runs pretty hot.

one day i would even like to look into a big bore kit.

i have heard the 88 has a different cam than the other years, i would think a utility atv would have alot of bottom end but no top end but its quite the oppisite. it almost reminds me of a two stroke how the powerband is. but for trail riding its pretty good and i must say i like it alot.

anybody got any tips/advice, knowledge on what does, and does not work or make power, any tricks of the trade that i could try out?????

 

[Guest]

Hello welcome to the forums. As for more speed you could get a big bore kit and a clutch kit. The bigger bore with the right jets, pipe and filter will give you a little more speed. And the clutch kit will give it better throttle response like you said. As for the cam you have to sell it to me!.....lol

 

[blowfishRus6]

haha, i really like the powerband this cam gives it. once it starts to pull in topend it pulls strong till the rev limiter.


also i forgot, what about carb off a different bike?? maybe a 300 or 400ex?? i have heard the one thats on here now is more economical than performance.

 

[submarine 300]

Sell me the cam and i'll tell you!.......I haven't really looked into a carb switch but i'm sure it can be done.

 

[submarine 300]

Get a HOT cam and sell the 88 cam to me! That will give you more high end speed.

 

[Fourtrax]

Welcome to the forums I have that same machine and it is indeed fun for a utility. I haven't done any exhaust yet, but I did remove the air box lid and went up to a 122 main jet with a good carb cleaning and it made a nice difference, and it sounds pretty cool. You'll want to hang on to your cam as I believe the "bolt in upgrade" for the 92 and up is pretty much the stock cam for ours. Adding an oil cooler can be done and I have thought about it also, but I may just put on a small electric fan instead. Post up some pics of your machine when you get a chance I'd love to see it.

 

[Fourtrax]

As for the clutch kit, I've also been looking into that, EBC makes a kit for the main clutch but you'll also probably want to replace or at least put new shoes in your centrifugal clutch, which I plan to do sometime as mine is starting to slip a bit. Shoes can be had on ebay for about 70 bucks I think or you can buy a used centrifugal clutch off a newer machine for less than that. Haven't decided yet on which way to do. I'm not so much trying to "soup" mine up but just bring it back to "new" condition with maybe a little more pep.

 

[blowfishRus6]

i might post some pics later when i get the chance. its nothing to look at tho. sat at some guys house out side for a few years, all the tires are dry roted, had rust in the gas tank, seat is tore up, all the plastic is broken/tore up. i just got it last week. ill need to do all my maintenance before i start modding it.

right now i have the little baffle hole open on the exhuast and every now and then i ride around with the air box lid off, pretty fun for out in the yard. gotta get a filter too, the one one it was all mushy and tore up, i got a few socks on it for now just to keep the dirt out. hopefully with in the next week i can buy some tires, filter, and maybe a muffler. all my oils and a new spark plug.

i have also heard of ricks cdi boxes. anybody have any experience with these?? or know of others??

for being a utility atv, it is pretty fun. im hoping full bolt-ons will get me to where i want it power wise.

 

[Fourtrax]

HAHA, Mines not much to look at either, kinda the same story I need rear plastic in a bad way, the front is good. I've taken the racks off and painted them black again. My mother in law helped me recover my seat with some marine grade vinyl from the fabric store. I just last weekend took my tank off and cleaned it as best I could. More info on that here.. http://www.hondaatvforums.net/forums/repair-maintenance/3179-carb-tank-cleaning.html I would recommend cleaning like I did and cleaning your carb real well and then put an inline filter I just got one for a lawn mower at the farm store worked perfectly. The CDI boxes adjust timing curves and rev limiter. The 88's already have a higher rev limiter than the newer models so I'm not sure it would be worth your money. Start with your fluids, spark plug, adjust your valves and clean the tank and carb, I think you'll be in pretty good shape then. You can see a few pics of mine here.. http://www.hondaatvforums.net/forums/members/fourtrax-albums.html

and a short video here... http://www.hondaatvforums.net/forums/atv-media/2623-here-my-300-a.html

 

[blowfishRus6]

ha yea i did the same thing you did to clean the tank, used a whole bunch of penneys and washers, even put it in the dryer for a while to let it stur around. worked pretty good. i have still yet to pull the carb off and clean it, it runs pretty good for now. and yes it SUCKED trying to get all that stuff back ouf of the tank.

what is an inline filter?

 

[Fourtrax]

fuel filter to keep all that crap out of the carb, mine was filthy and red on the inside from rust several of the jets were plugged I can't believe it ran at all let alone as good as it did before I cleaned it. An inline fuel filter you can even get at Wal-Mart (hush Billy ) but you cut your fuel hose from tank to carb and put this filter in the middle to keep things clean.

 

[blowfishRus6]

ooooo okay yea gotcha.

 

[Fourtrax]

This is the filter I used it was the perfect size for the hose. I was afraid it may starve the engine but it seems to work just fine.

Parts & Supplies - Briggs & Stratton

 

[Fourtrax]

also don't forget to check and change the fluid in the differential if its been sitting, When I got mine I dumped out grey milky fluid from the rear end, flushed it real good and changed it a few times and now its good. Just use any 80-90 gear lube. And when you change the ENGINE oil only use HONDA oil or an oil approved for WET clutches, I use Rotella T 15-40 that you can get almost anywhere. There is also an Amsoil rep here on the site if you would like to use that, its GREAT oil. You can get Oil filters at Motorcycle Parts, Motorcycle Accessories ? BikeBandit.com or at your local Honda dealer if you have one close. ALWAYS change the filter when you change the oil.

 

[submarine 300]

Now that is all said and done sell me your cam!......I'm almost sure the 300 will run without it!...lol

 

[Fourtrax]

:icon_ laughup: Don't listen to him! He's just jealous. :icon_ nana:

 

[submarine 300]

:icon_ laughup: Don't listen to him! He's just jealous. :icon_ nana:

No I'm despreate for the 88 cam....:icon_ cry:

 

[Fourtrax]

3: Camshaft
209757-001 $72.94

 

[blowfishRus6]

500$ and the cam can be yours

80-90 for the rear end, good to know.

yea i used to have to use those filters for my old mopeds and there rusty/nasty gas tanks. they work pretty good.

 

[submarine 300]

3: Camshaft
209757-001 $72.94

Where is it that cheap?