[Joshtech1020]

Just picked up a 1 owner all stock 2003 pro x 700

Replaced very few parts so far , starts 1 pull , Very little cleaning so far
early this week ordered 420 mains , 10-64 belly busters , venom red primary 140/320 , black 155/222 secondary ccw, 3 delrin washers , 24 top gear
I’m 165# and will be riding trail and lake , hopefully this will be a good setup
I did locate a 68-44-.46 /. 52-42f helix but didn’t order not sure if it will work
I have done a bunch of reading here I have a lot to still go through and ck
any help and info would be appreciated

 

[Joshtech1020]

Has 3k original miles ,just over 150 psi each cylinder cold , I will be riding about 500’-2000’ , and will be riding with brother-in-laws
2004 f7 Stock
2005 t660. Stock
2006 apex stock
2006 apex. Stock
2007 apex mpi supercharged ummmmm lots done to it

any help to be able to keep up , possibly beat any of them

 

[too slow]

Has 3k original miles ,just over 150 psi each cylinder cold , I will be riding about 500’-2000’ , and will be riding with brother-in-laws
2004 f7 Stock
2005 t660. Stock
2006 apex stock
2006 apex. Stock
2007 apex mpi supercharged ummmmm lots done to it

any help to be able to keep up , possibly beat any of them

Only sled your guarantee to beat is that 660 4 stroke cat. Those apex's stock are 150 hp, and go pretty good as long as their studded well. As for the f7 cat? Just hope you run one its owner has no clue to its setup.

 

[Joshtech1020]

Only sled your guarantee to beat is that 660 4 stroke cat. Those apex's stock are 150 hp, and go pretty good as long as their studded well. As for the f7 cat? Just hope you run one its owner

Only sled your guarantee to beat is that 660 4 stroke cat. Those apex's stock are 150 hp, and go pretty good as long as their studded well. As for the f7 cat? Just hope you run one its owner has no clue to its setup.

hoping It helps that I’m 80-100 pounds less then all 3 brother-in-laws

 

[EvilBird]

Not trying to preach here but if its your first Sled the last thing you should be worried about is racing and beating them. Get some seat time. But depending on where you are riding a 700 can keep up or be faster than an Apex in the twisties no problem, but on an open lake or field you will get gapped, Apexs are top end kings. With that particular Sled id personally be more worried about suspension setup and traction. In the tight woods trails Apexs suck. A proper 600 can be ahead with a good rider.

 

[Senditbud]

Just get out there and enjoy the ride bud!! Speaking as a pretty new rider myself, pay attention and learn from the guys your riding with... the “keeping up” will come with time in the seat!

 

[Lid2]

Your prox should leave all those sleds behind in the rougher trails. It’s much more capable than any of those others. Is your secondary clutch splined or is it still keyd in that year ? If it’s keyd. You can get anold button clutch for the rear which you will give up backshift but makes for a faster sled.

 

[Joshtech1020]

R

Not trying to preach here but if its your first Sled the last thing you should be worried about is racing and beating them. Get some seat time. But depending on where you are riding a 700 can keep up or be faster than an Apex in the twisties no problem, but on an open lake or field you will get gapped, Apexs are top end kings. With that particular Sled id personally be more worried about suspension setup and traction. In the tight woods trails Apexs suck. A proper 600 can be ahead with a good rider.

reading as much as I can on suspension setup past few days , still a lot to learn , never ending

 

[Joshtech1020]

Your prox should leave all those sleds behind in the rougher trails. It’s much more capable than any of those others. Is your secondary clutch splined or is it still keyd in that year ? If it’s keyd. You can get anold button clutch for the rear which you will give up backshift but makes for a faster sled.

It’s keyed. Just installed the clutch parts today , tomorrow jets, and the upper gear , and start looking at the suspension

 

[EvilBird]

Sled looks mint , always wanted one of those.

 

[shadosprit]

R

reading as much as I can on suspension setup past few days , still a lot to learn , never ending

Oh it is never ending!!!!

 

[Joshtech1020]

Trying to decide if I should put in the 1 tooth lower gear , and leave stock helix , or get that helix also , or leave stock gear , and get that helix

 

[too slow]

I agree even a new rider will put nearly all those sleds to shame riding the prox on trails...those others are trail cruisers with the f7 mainly just a drag sled. A friend of my had an 03 700 prox just the same as the op's. Bone stock my 03 600 was only a sled behind it in a 1000' drag run. Their not that fast for drag racing. What they do well is make short work of tight trails. The op may have some issues being a lighter rider as these sleds as they have fairly aggressive suspension. I'm 200 lbs in gear....i rode the prox, it rode much harsher than my xc 600. Imo, stock this sled isn't the best for long rides.

 

[too slow]

Trying to decide if I should put in the 1 tooth lower gear , and leave stock helix , or get that helix also , or leave stock gear , and get that helix

1.74 gear ratio works well in the prox 700 for 1000' runs. You need to run at least 144 studs with it. Our guy ran the stock helix.

 

[Axys180]

Get all your free horsepower! Align clutches, check motor mounts, I broke mine in my 02 700 Edge X. Align track and check ski toe out. Boyesen Rage Cages make them snappy too! I would make one change at a time. Helix, then gears. As stated above, take your time and learn your masheen. Don’t ride outside your skill level. Sometimes riding in back watching everyone over shoot turns etc you can learn a lot about yourself and your sled. I have been riding for over 30 years and when I got my 850, I did the same. Start at the back, get used to it, then pass em one by one. Cheers

 

[orville-x]

Nice sled. I had several trail converted 440s back in the day, put lots of miles on them. The 700s were geared pretty tall stock, so something to be gained "corner to corner" by gearing down a little. Agree that you aren't going to beat any of those other sleds on the lake, but there is some improvement to be made. Jetting was very conservative, so that is one place to look. Make sure the TPS is set correctly also - lots of them weren't. Clutch alignment is another area to look. Engine torque stops were a popular add-on and check the engine mounts carefully. The front PTO side mount likes to separate and leaves the engine flopping around. Go through the suspension and have the shocks serviced if they haven't been. The ride will be "firm", but you can blast through rough stuff that will have those other sleds slowing to a crawl - except "maybe" the F7. There are a couple additional engine performance things you can do to help, but concentrate on the "basics" first.

 

[1290pine]

I owned a 03 pro x 800 with everything slp had to offer on it-single pipe,,, I very much so agree with evilbird!! Go easy if thats your first sled please!! that machines pretty seriouse out of the box, spend some time to understand and learn the machine before worrying abought racing, you do not need to do anything or spend any money to run those sleds in the woods! ,,They can outrun you on a lake blast let em go but the rougher the terrain the more the pro x will flat ass kill them sleds. Its a snow x sled... Bad machine corner to corner and whooped out trails. Ide put c and a skies on it. Keep your races short and it will run with anything. Kool sled i miss mine!! Be carefull!!

 

[Joshtech1020]

Has 3k original miles ,just over 150 psi each cylinder cold , I will be riding about 500’-2000’ , and will be riding with brother-in-laws
2004 f7 Stock
2005 t660. Stock
2006 apex stock
2006 apex. Stock
2007 apex mpi supercharged ummmmm lots done to it

any help to be able to keep up , possibly beat any of them

I miss typed. What I ment to say is , if the sled I able to keep up , or possibly beat any of them , Sleds capability , Not mine (way to much to learn)

 

[too slow]

On any trail rougher than table top groomed those apex's are like a wounded rhino on them. You should have no issues with that sled, even a fuji 500 xc can out run a stock apex on a rough trail. As far as a smooth lake or big meadows your toast.
Imo, when a newbie rider, they should learn to ride a smaller displacement sled to it fullest before moving up.

 

[trottlejo]

excellent sled i had a 04 7 and 8 not sure about 7 but my 8 i ran 2002 needles and jetting check 2002 700 carb needles was not as fat ran much crisper my 700 was stock except jetting was a back up was very dependable but didnt go crazy like my 8 will need to reinforce bulkhead and install torque arm and push arm to keep clutches lined up clean power valves and check port holes check tps setting check motor mounts gear may give alittle lower end but these sleds are a little slow on top already and fuel mileage will drop and the sleds you are ridding with are all grate on fuel especially the f7 have fun and enjoy dont worry your revenge will be evident in the bumps and turns as i still grin at the pack