going to do sum up grades

[b trx400]

i have a 03 trx 400 with full exaust and jet ket one tooth down in front.do you guys think a hot cam and rev limiter wood be the next stap or is it not worth it thanks

[ilovehondas]

suspension

[b trx400]

suspension i just got the 450r shocks man are thay great brian did sum ajustments and thair good :thumb:

[ilovehondas]

a cam would help with some mid range power

but you dont need a rev limiter

[quazimoto]

Sometimes you can do a fake out with the timing -or you can do this.
http://www.magicracing.com/SRP-6-Degree-Key--TRX400EX_p_33.html
Does give you a little more pep
On my KFX400 I did the
kind of a rev box / timing /
9 way adjustable
had to do the fake out
There is no offset key for the LTZ / KFX 400
Check your compression or better yet get on a newer one
and see if there bike is peppier
may be time for a set.
Then while doing the rings do the cam (1) is that correct?


Fake out meaning when the spark goes off.
Hope I didn't mess you all up.

[b trx400]

Sometimes you can do a fake out with the timing -or you can do this.
http://www.magicracing.com/SRP-6-Degree-Key--TRX400EX_p_33.html
Does give you a little more pep
On my KFX400 I did the
kind of a rev box / timing /
9 way adjustable
had to do the fake out
There is no offset key for the LTZ / KFX 400
Check your compression or better yet get on a newer one
and see if there bike is peppier
may be time for a set.
Then while doing the rings do the cam (1) is that correct?


Fake out meaning when the spark goes off.
Hope I didn't mess you all up. i have road a 07 400 ex with full exaust and jet kit mine has more pep

[quazimoto]

i have road a 07 400 ex with full exaust and jet kit mine has more pep

So whats all the hubbub
then leave her alone.
till she breaks then do some stuff

[b trx400]

So whats all the hubbub
then leave her alone.
till she breaks then do some stuff
i have had it for 2 years and have not done any work to it since then i thought it mite be time i wood like to get sum more power

[ilovehondas]

save your money to get them shocks rebuilt!

you'd be suprised how much faster that will make you
a more powerful motor doesnt always make you fast (not unless your drag racing)

[08trx450r]

save your money to get them shocks rebuilt!

you'd be suprised how much faster that will make you
a more powerful motor doesnt always make you fast (not unless your drag racing)

I todally agree with david. My engine is Stock. so far the suspension and tires made the biggest diffrance.

I just thought of something though. My engine is the only thing that is stock now. Dam and I only had the bike for 1 1/2 years. Well the engine is sort of stock.

[b trx400]

it just feels like it is geting out of the power ban between 2 3 when i hit the turn i have to down shift a lot thats why i thought the hot cam wood make a big difrance or i am open for more ideas or tack it for a ride and let me no :thumb:

[shogun323]

The best fix for that is to drop a tooth on the front sprocket or add two teeth to the rear sprocket. With the lower gearing you will lose a little bit of top end speed but it will increase your torque alot and allow you to bog 3rd gear much lower and it only costs the price of a sprocket.

You can also try clutching into the turns and then hit the throttle and dump the clutch as you come out it it.

[b trx400]

The best fix for that is to drop a tooth on the front sprocket or add two teeth to the rear sprocket. With the lower gearing you will lose a little bit of top end speed but it will increase your torque alot and allow you to bog 3rd gear much lower and it only costs the price of a sprocket.

You can also try clutching into the turns and then hit the throttle and dump the clutch as you come out it it.

i droped one in the front i did not do the back so you do not think it wood be good to do anythink to the moter if it is not broke

[ilovehondas]

i droped one in the front i did not do the back so you do not think it wood be good to do anythink to the moter if it is not brokeclutching it does work, I do that on mine
but I think thats why Im replacing my clutch now :tard[1]:

taking the turns faster helps too :crackup:

but yeah, leave the motor alone
and if you want any more technical 400ex info go here:http://www.exriders.com/vbb/forumdisplay.php?s=&forumid=64
its where I get all mine

[96cobra10101]

I would do the shocks if you haven't done them yet. Probably the best upgrade you can to do to improve your speed.

[b trx400]

thanks for all the help guys i think i will get my new front tires and wate until it starts acting up be for i get in the moter :thumb:

[ilovehondas]

this was kinda what Dave was talkin about
heard nothin but good about them, gives ya lot more torque
check it out: http://cgi.ebay.com/ebaymotors/Sparks-Racing-Timing-Advance-Key-Honda-400EX-400-EX-TRX_W0QQitemZ230371015189QQcmdZViewItem

how to: http://www.exriders.com/vbb/showthread.php?threadid=349499

I would definatly do this mod if I had a stock compression motor, cant beat it for only $30!

[Sara]

i droped one in the front i did not do the back so you do not think it wood be good to do anythink to the moter if it is not broke


You should see a good improvement if you dropped one in the front, at least I did and I did nothing to the rear sprocket either. Much more responsive and torque-y-er (I'm inventing words).

[b trx400]

You should see a good improvement if you dropped one in the front, at least I did and I did nothing to the rear sprocket either. Much more responsive and torque-y-er (I'm inventing words).

yes i did see a good improvement i was just thinking about a hot cam i think i am going to save the money i am going to look at what the daves are talking about

[b trx400]

this was kinda what Dave was talkin about
heard nothin but good about them, gives ya lot more torque
check it out: http://cgi.ebay.com/ebaymotors/Sparks-Racing-Timing-Advance-Key-Honda-400EX-400-EX-TRX_W0QQitemZ230371015189QQcmdZViewItem

how to: http://www.exriders.com/vbb/showthread.php?threadid=349499

I would definatly do this mod if I had a stock compression motor, cant beat it for only $30!
thanks dave i do have stock so i will lookin to it :thumb:

[quazimoto]

cool
How you been guys about ready to ride maybe sunday or monday
who knows see what happens.
Hope the timing key helps
Q

[b trx400]

cool
How you been guys about ready to ride maybe sunday or monday
who knows see what happens.
Hope the timing key helps
Q thank you for your help we will be out in front on sun around 8

[Andy9933]

NITROUS:devillook:

[b trx400]

NITROUS:devillook:

thanks andy but i think i will pass :thumb: