California model vs. non

What is the difference between the 700XNC and the 700XN? Any advantages to the non california? I just found out my '85 700 Maxim X is a California model and am kind of bumbed that I am missing out on some power or something.

 

If that's the case, I'd like some pictures of your tank.

The California model, which I also have, has a tank with a) a non-vented gas cap, and b) a "rollover valve" which connects to a canister located behind the right side cover. From the canister, it goes back to the #2 carb.

I have the appropriate carbs and the emissions canister, but I apparently don't have the California tank -- that's why I'd like to get a gander at yours. No, I don't think you're losing any power, as I don't think there's anything extra to restrict the exhaust flow.

 

There may have been a difference in the size of the main and pilot fuel jets between CA and the 49-state models.......I've noticed that some info sources claim #100 main and #35 pilot fuel jets, others say #102.5 main and #37.5 pilot fuel jets.......and although it's not defined very clearly, I believe the differences in those jet sizes are actually the CA vs. non-CA jet sizes.........Schmuck, what did your carbs have?

Also, the main jet NEEDLE is specified as being different between the CA and non-CA bikes (or, it may just be the "Clip position" of the needle?):

Main jet NEEDLE ID: #5FZ82 (all except XNC model)
Main jet NEEDLE ID: #5FZ83 (XNC model)

 

I picked up a set of X carbs that have the outlet on carb #2, but they had the same 105 jets as was what was on the bike originally.

 

I honestly couldn't tell you. I don't remember looking, and I'm not going to pull the blasted carbs on that thing if I don't have to.

 

Schmuck, don't blame you a bit!


Joe....when you say "the outlet" on the #2 carb, you mean the additional brass nipple for the vapor cannister line, correct?

And if so, do you know what YEAR carbs they were supposed to be off of? Because ALL of the 1986 model X carbs (CA and 49-state) are supposed to have #105 main jets (and #35 pilots); it's only the 1985 versions of the CA vs. 49-state X carbs that are in question......

 

Chacal - yes. Unfortunately, I don't know the year for sure.

 

Schmuck, I'll try to get some pics on in the next few days. Do you want top view and side views? Also thanks for the info everyone. I was hoping I was missing some power, because I could always use some more. My brother has a n '04 CBR 1000RR and I cannot belive how much acceleration it has. It took me 0-60 in first gear in what seemed like a moment.

 

Bear in mind that:

a) it's fuel injected;
b) it has chain drive;
c) it has a larger engine;
d) it's likely a lot lighter.

You're looking at a bike that has 20 more years of R&D than the X has. Even if you were to take the sportbike that the engine is derived from -- the FZR -- of a similar vintage to your X and put it up against the CBR, I'd wager there would still be a noticeable difference.

As for the pics, I don't think what I'm looking for will be noticeable from the top; I *think* it's located on the left side somewhere, south of the petcock nearer the seat. Closeups of this "rollover valve" would be great.

Don't forget to send copies of these pics to our friend Harald Pfeiffer at the maxim-x.com website; I sent him some of my carbs, and he said he hadn't seen this setup before on the X. This way, he'll know I'm not alone.

 

Schmuck, I was unable to post the pics to the message, so I'll put them in my gallery. One is from the left side of the tank, and the other is from the right side that shows the back side of the petcock. the hose coming off the back is going to the second cylinder's intake

 

My pictures are too good for the site. I'll email you I guess.

 

Resize the pictures and see if that helps. Max size is 500x500 pixels, I think it is. Either that or stuff them in an online file storage site and link to them.

Either that, or they're too big -- saw another post that said the gallery holds a maximum of 5MB of files. I don't know how many megapixels you're playing with, so I couldn't say how many pictures it would take to fill the quota.

 

Maybe I can help with the tank question

I used to own a 1985 XJ700XNC and there was an additional nipple (#24) under the lower half of the tank, where the exhaust cannister was connected to trough line # 26 on the picture below.

For a closer look at the tank:
This is the tank for a XNC model:



This is a Non-C tank:


I haven't noticed any difference in performance though....

Have a look at my site for more microfilm drawings....

Good Luck!!

Pat
1986 XJ700XS
2007 VMX1200 "Flame Max"

 

That's what I'm trying to get an *actual photo* of. The parts drawings I have.

Do you remember which side that valve sits on? Granted, this is all academic, as I don't have a California tank, but I'm curious nonetheless.

 

Valve #24 is right in the middle, in the lower half of the tank.

If this is about installing XNC carbs on a XN, I'd just block the extra lines / connectors and try it out.
On my old XNC, I took off the cannister and just closed the lines with a thick screw. No problems whatsoever.

 

Schmuck, if you look at your non-CA tank, underneath, you'll see where there is a stamped recessed round area in the metal (towards the rea, along the centerline).

I believe this is where the anti-rollover valve goes on teh CALI tanks....that area is recessed like that because that's where they punch the hole on the "emissions" tanks.

 

Ah, I do recall seeing that little dimple, now that you mention it. Okay, that answers THAT question.

Since I don't have the valve to worry about, one line was already hanging loose. Simpler solution: unhook the other line from the #2 carb and cap the hose barb. Problem solved.