YZROOSTINYA
09-12-2002, 07:38 AM
Hello,
I have a 02 400ex with the following mods:
wb pro meg full exhaust with 8 discs(comes with 12)
k and n air filter w/outerware
4 one inch holes with screens in airbox lid
155 main
stainless front brake lines
itp fronts with 23x7x10 acr bandits
stock rear rims with 22x11x9 sur trax
pro taper bars with vertex adapter kit to stock steering stem
prm swinarm skid
rear brake block off and solo clutch lever
a 9 spark plug(the stock is a 8, i forget the exact part #)
hp4 w/out moly 10w-40
I am about to purchase a 416 kit which includes:
3 angle valve job
mild port and match
xr400 cam
11:1 piston
all gaskets and labor
heavy duty cam chain
new valve seals
is this worth it. it will cost me $800
its from www.profabatv.com
has anyone heard of these guys? do they do good work. seemed like he knew what he was talking about.
hopefully someone can help me. all the other sites are a bunch of kids asking what slip on will give them 20hp.
also, does anyone make ti valves/springs/retainers for the 400ex. looking to lighten up the valve train to make it a little rev happier. also what can be done to smooth out vibration beside balancing the crank? i ride fairly aggresively with a 2 stroke style(like to slip the clutch and rev motor) i ride woods and hill climbs and jump. basically looking for all around power with a motor that has somewhat what of a midrange-high rpm hit to it. nothing crazy just better than stock.
my bud has a 11:1 (stock bore)with an all around web cam and heavy duty springs on stock non surfaced rockers and i really cant tell any differance other than it revs a little more. i want more than that though. he has the same exhaust and k and n.
i like the reliabilty of the 416 since it is not that big of a bore on the stock crank. should i chose a diff cam? dont want to hard face the rockers as it is like 300$ will prob end up runnin a 50/50 gas/race gas mix in the hot summer and just run pump in the colder months. any input is greatly appreciated.
also what does pulling the choke from the carb do? more flow or sumpin? does this make it a b... to start? would a fcr carb help with this kit? dont want to spend more tha 1200 incliding shipping. maybe i should do it myself and just send the cylnder out to get bored and use that loot to buy better parts? i just dont feel like doing as i am busy and just lazy right now.
I have a 02 400ex with the following mods:
wb pro meg full exhaust with 8 discs(comes with 12)
k and n air filter w/outerware
4 one inch holes with screens in airbox lid
155 main
stainless front brake lines
itp fronts with 23x7x10 acr bandits
stock rear rims with 22x11x9 sur trax
pro taper bars with vertex adapter kit to stock steering stem
prm swinarm skid
rear brake block off and solo clutch lever
a 9 spark plug(the stock is a 8, i forget the exact part #)
hp4 w/out moly 10w-40
I am about to purchase a 416 kit which includes:
3 angle valve job
mild port and match
xr400 cam
11:1 piston
all gaskets and labor
heavy duty cam chain
new valve seals
is this worth it. it will cost me $800
its from www.profabatv.com
has anyone heard of these guys? do they do good work. seemed like he knew what he was talking about.
hopefully someone can help me. all the other sites are a bunch of kids asking what slip on will give them 20hp.
also, does anyone make ti valves/springs/retainers for the 400ex. looking to lighten up the valve train to make it a little rev happier. also what can be done to smooth out vibration beside balancing the crank? i ride fairly aggresively with a 2 stroke style(like to slip the clutch and rev motor) i ride woods and hill climbs and jump. basically looking for all around power with a motor that has somewhat what of a midrange-high rpm hit to it. nothing crazy just better than stock.
my bud has a 11:1 (stock bore)with an all around web cam and heavy duty springs on stock non surfaced rockers and i really cant tell any differance other than it revs a little more. i want more than that though. he has the same exhaust and k and n.
i like the reliabilty of the 416 since it is not that big of a bore on the stock crank. should i chose a diff cam? dont want to hard face the rockers as it is like 300$ will prob end up runnin a 50/50 gas/race gas mix in the hot summer and just run pump in the colder months. any input is greatly appreciated.
also what does pulling the choke from the carb do? more flow or sumpin? does this make it a b... to start? would a fcr carb help with this kit? dont want to spend more tha 1200 incliding shipping. maybe i should do it myself and just send the cylnder out to get bored and use that loot to buy better parts? i just dont feel like doing as i am busy and just lazy right now.