TRX300EX Tips and Tricks for Higher Performance
Buddy Gadrner
supposed to make the rather weak motor of the 300EX into a performer. I
don't think the motor is that weak, but it could use a boost.
I got a DG 1.25 diameter head pipe, with DG RCP Alloy silencer(ha ha). But
I'm not sold on the other options. I want to hear what you all think about
each of these modifications.
1)Split fire Plug?????
2)Carb Jetting Kit $58
3)CDI Upgrade (black box mod) $115
4)Cam kit from TC Racing $97
What else and what do you think of these mods? If you've done this on a
300EX I want your opinion. PLEASE LET ME KNOW what I can do.
Buddy
Gearhead
Not worth it, it works the same as any other plug and will gain you nothing
>2)Carb Jetting Kit $58
Well worth it if you plan on doing the other mods... jetting can make a huge
difference.
>3)CDI Upgrade (black box mod) $115
This will allow your engine to rev higher... I wouldn't do it.
>4)Cam kit from TC Racing $97
I would try the other mods before going inside the motor, but a cam is a
good 4 stroke mod.
>
>What else and what do you think of these mods?
K&N filter with outerwear and airbox lid mod (holes) will allow more air to
flow in.
Joe Geary
waiting for my Y2K TRX400EX
NOSPA...@usaor.net
www.usaor.net/users/gear
Andy Mullins
pipe helped get rid of the gas but they need help pulling in more air. Any
time you do engine mods you need to re-jet. If you want real performance
the cam will make a big difference. You will have to use heavy-duty valve
springs when you upgrade. While you are into the engine it would be a good
time to step up to a high compression piston. My preference would be a
Wiseco 10.5:1. As far as the CDI Upgrade it will raise the rev-limiter, but
this is a good and bad thing. Revving a 4-stroke motor too hard for a long
time can cause valve and valve seat damage. It really depends on the
application for this mod. I wouldn't fool with a Splitfire plug. NGK plugs
work just as good and are cheaper. Now that you have lots more horsepower
you will likely want to go to a 14-tooth sprocket. If you want more info
email me and I could probably write you a book on the 300EX.
Buddy Gadrner <coo...@usit.net> wrote in message
news:nvli3.223$b4....@news1.usit.net...
> I have an 1995 TRX300EX and have seen several performance kits that are
> supposed to make the rather weak motor of the 300EX into a performer. I
> don't think the motor is that weak, but it could use a boost.
>
> I got a DG 1.25 diameter head pipe, with DG RCP Alloy silencer(ha ha). But
> I'm not sold on the other options. I want to hear what you all think about
> each of these modifications.
>
> 1)Split fire Plug?????
> 2)Carb Jetting Kit $58
> 3)CDI Upgrade (black box mod) $115
> 4)Cam kit from TC Racing $97
>
Buddy Gadrner
The next thing I want to do is jet the quad. But what size jet?
2. where do I get the CDI work done? Do they use my CDI or buy another
modified one?
3. There are three cams to get. Low, Mid-High, and High range. Which one
would recommend?
Any other ideas?
Andy Mullins <an...@bandacomputer.com> wrote in message
news:93265493...@news.remarQ.com...
Andy Mullins
larger would be a good place to start. You may have go larger though. You
should be able to find a good CDI from Four Stroke Tech, White Bros., or TC
Racing. For the cam it really depends on the type riding. For most trail
riding I would use the Mid-High or Low, but it depends where you need the
extra power. You will have to use heavy duty valve springs on any cam other
than stock. Expect to pay around $150 for these. Now that your engine is
going fast I would say the ride is getting rough. You may want to look into
new shocks. Works Performance makes good ones for trail riding. If your
motocrossing look at the PEP's or Ohlins. If your motocrossing you probably
want a wider stance so new A-Arms (+2 or +3 inch) and a new axle (+2 or +3
inch) for extra strength and stability.
Andy Mullins
'93 300EX
Buddy Gadrner <coo...@usit.net> wrote in message
news:6LZl3.162$84.8...@news1.usit.net...
Gearhead
That's a lot of aftermarket dough for a sport quad. Shocks, axle, and
Arms.... yikes!
Joe Geary
waiting for my Y2K TRX400EX
NOSPA...@usaor.net
www.usaor.net/users/gear
Andy Mullins
before the 400. Mod for mod a 400 will eat mine but I'm happy where I'm
at....for now.
Gearhead <NOSPA...@usaor.net> wrote in message
news:FV0m3.397$iZ5.1...@news.sgi.net...
WillieB
run for the mods you have. Also says exactly where to set the mixture screw.
I am very impressed with the throttle response and power gain since I
installed mine! It's a huge difference for $50!
WillieB - '99 Scrambler 500
Buddy Gadrner wrote in message <6LZl3.162$84.8...@news1.usit.net>...
Buddy Gadrner
I ride mostly in woods, trails where low and mid range is needed, but
whereas I like speed and we run with 250rs and 400ex's I need more top end,
not alot, just enough to not be left behind. The 250rs leave the 400s and
the 400s leave me.
Do I NEED a spring kit for the cam without getting a non-rev limiting CDI?
If I don't rev high, will I need the springs, or should I get, Just In Case
. . .?
I wouldn't go too far with this bike, or I'd sell it and buy my friends 400.
Shocks, eh, not for me, rev limiter needs to go though. I can pamper the
throttle before she blows, but even though, the spring kit would be
nice(Just In Case)
Thanks for the information guys!!
Andy Mullins
loose your bottom end power. Any high-performance cam will require the use
of heavy-duty valve springs. Be careful about revving too hard. Using a CDI
without a rev limiter can lead to problems. Your experience comes in to
play here.
Buddy Gadrner <coo...@usit.net> wrote in message
news:dc_m3.212$zJ1....@news1.usit.net...