2003 ec300 tuning tips

[gasgasgasgas]

Hi does any1 no what race tuning can be done with these bikes any info be great thanks

[wrench]

Originally Posted by gasgasgasgas

Hi does any1 no what race tuning can be done with these bikes any info be great thanks

Use the search feature and you will find a great deal of info. The forums are broken down into specific subgroups.

To be honest...Your question is too generic to answer other than "yes there is quite a lot that can be done with the tune of an 03 for racing"

You need to be more specific like; type or terrain where you intend to ride, your skill level, weight/height, type of racing that you are trying to "tune" for etc...

[pscook]

Also, what is the bike doing wrong, and what would you like it to do better?

[jostby]

1, replace 2K3 ignition with faster revving 2K2.
2, remove the spacer between the reed block and the cylinder (check clearance after removal)
3, replace ignition module with EC200 module. They vary in timing but '99-'00 model year has the most aggressive curve.
4, Gnarly pipe seems to hit harder.

Now, let the arguments begin

[Zman]

I just replaced my 2000 XC300 CDI with a dual map from a 2008 and there is a noticeable improvement in the performance. The original CDI performance seems to fall between the rain and shine switch settings. Before you change CDI you can get a boost in performance if you advance the timing a few degrees, (2 mm) as measured at the timing plate. Your best performance will come from getting your jetting correct first. Then I would go for the head mod to set the squish since many of the GG bikes had relatively low compression from the factory.

[CACTUSREID]

no offence gasx4, but you bought a 13 year old bike and you want to tune it for racing?
Is this your 1st bike or have you been doing this for a while. if your racing your buddies,there are lots of small things that don't cost to much that will help a lot, but if your going to try and get some race series trophy's, you'll need a newer bike by a long stretch.
- jet the carb to your liking
- change out your suspension oil and get the right springs for your weight
- set your suspension clickers and your "RACE" sag for your weight as well.
-faster ignition curve (as previously explained how to do) with stator and cdi swap will make the bike rev faster, but you will have to be honest with you self (timing yourself through a preset loop is the best way) you may actually be slower covering the same distance than you are with the stock GG setup.
Hooking up and moving forward is actually way quicker than spinning tires,roosting dirt and backing off to let the frt end come back down so you can steer into or around the next obstacle.
-Go over your bike and check/change/lube every bearing and linkage point to make sure they are in top notch condition, will help your bike preform to the best of it;s abilities.
the best suspension that you can afford or build is in my experience,way "faster" for most guys than any high compression head, or high revving pipe with a short ass noisey muffler on the back.