I think my bike came from California..

I have a 1991 VFR750F and I noticed that it has a evap canister, a PAIR system, and along with a whole bunch of other hoses, etc. I was wondering if this stuff came on all VFR's or only california? Kinda crazy to see a Cali vehicle here in Massachusetts! I'm thinking about removing all this crap, I don't like the mess of hoses, wires, and weight, etc. Just wondering if I can just start dropping some crap out (I have been reading up on this here: http://www.vfrdiscussion.com/index.php?/topic/79562-evap-canister-delete-help-needed/

Only problem is that's for a 6th gen vfr, and not my 3rd so I am unsure how accurate the info is.

I've been searching for the last 2 hours and I found some information, but all of it seems to be all over the place. Just looking for some confirmation. Also will this cause issues with the air fuel ratio at all? I don't believe it will, but would just like to confirm since my carbs are off the bike now anyway.

Thanks!

 

After reviewing the PDF of the manual, it appears that on page 1-40 & 1-41 that my bike definitely 100% has that emission stuff, I really want to delete them all since it makes the whole inside of the bike overly complicated I just wanted to make sure I do it right so the bike isn't going to run poorly. Which holes do I plug up, etc. ?

 

This question could be right up for Mr. bad Billy alley. Seeing he has a 91, and he's a all mighty know a thing or two. On another part, which i do not know for a fact. that Ca. models also had a slight different cam profile? I could be mistaken, but was thinking I read that some where.

 

Okay, here's a picture for visuals, since I am a very visual person...

 

It's a JH2RC3610MM VIN#

I actually read that too, I'm not looking to go that crazy in depth, more or less just trying to remove all the crap. I updated it with a couple pics, in hopes that someone could tell me more info

 

PAIR system: remove all the hoses and solenoid. Cap off the supply port at the airbox. Install blanking plates at the cylinder head.

Evap cannister: Leave an air vent hose for the fuel tank, open to atmosphere. Carb overflows and float bowl drains just leave open to atmosphere. Blank off any vacuum ports on the inlet manifold so they don't leak.

 

Thanks Cadbury! I really do appreciate the information! I just have a couple more questions.

Do the blanking plates have to be welded? Or do they just bolt up?

There are vacuum ports on the inlet manifold? I didn't see any.

 

Blanking plates are usually bolted on; you need to ensure an air-tight seal otherwise you will hear an exhaust leak.

Sorry, no vacuum ports on the inlets need to be blanked off on your bike. Other VFR models have fixed hoses attached for throttle plate synch, and on CA versions these get routed to the evap system.

 

you can thank Ca for all this junk and duckman-Qack Qack!

 

Bite me ya puke


Sent from my iPhone using Tapatalk

 

Okay, so I think I got this correct, I'm going to...

*remove everything
*cap off the hose to the air box
*make sure the fuel tank can vent
*install the blanking plates

and I will be done? Sounds too good to be true, looks like i'm going to be ordering some plates, $30 on ebay sounds about right. I'm thinking I may put up some pictures and possibly make a DIY for future readers.

 

(correct me if I'm wrong, guys) The 8th digit in the VIN tells you if it's a California bike: 1 = California

 

That does sound about right. For the PAIR system, you just need to seal the outlet at the airbox so you don't leak unfiltered air back in, and the blanking plates are used to seal at the cylinder head. The rest of the PAIR system can then be removed.

 

The California models also had different cams, far more desirable to toss a set of those in. Tink put a set in a motor I sent him, PM him for the exact details as I think he had dyno numbers to back it up.

 

I'll look into it. I think that may be a little more "in depth" than i'd care to go. lol I mean, how much HP can be had? Like 3-4 hp?

 

Well if memory serves me, and to be honest I not only drink a lot but t'was raised by wolves and was never really into any book learn'n, it was aboot 10ish. 10 is a quality number for a mod in my opinion.

 

Not a great idea. No telling what SOW brushes with.