Fuel Shut off valve

This topic should be entertaining if you have a sence of humor. The dear little shutoff valve under my tank which controls my fuel pump (gravity). I generally leave it on all the time. Since when I do turn if off I am reminded as my buds and I are racing to the trail head to have the luxury of not eating dust and suddenly the bike gasps to a hault. God Bless the Button! I was tempted to drill a whole and wire it open since the jokers I ride with love to come over and admire my new bike while I am taking a whizz in the bushes and turn it off. Or how about when your all lined up at the base of the (HILL) checking out the guy on the right that just endoed and your buddy on the left reaches over and does the deed (off).

Enough of that. It is all in fun! I guess my real question is do most of you guys turn off the gas when you trailer your bike. I got into a discussion with my bud"s about while you are going down the rode the bike is back there on the trailer bouncing around causing the float to go up and down and spilling fuel over into the carb? I figure if the engine isn't running it can't get sucked up and wash the cylinder? I did notice a clean spot under the bike where all those pretty little pink hose's terminate one time. Have fun with this one everybody and lighten up a little :)

It's never happened with my DRZ, but with a couple of previous bikes if the fuel tap was left on with the engine off, the carb would flood quite quickly making starting a real bitch.

Force of habit now compels me to turn the fuel off if the bike's going to be parked for longer than 10-15 minutes.

Hey! I have the same kind of friemds. We use to roadrace the RZ and GPZ production classes in the 80's and the trick then was to ride by and hit the kill switch on the bars, talk about losing position.

Try this one; When your buddy is not looking pop off the spark plug boot and take a piece of electrical tape or paper and put it over the plug and pop the boot back on. :)

Edit,edit,edit P.S. I turn mine off while in transit and stroage.

[ December 03, 2001: Message edited by: Hotler ]

[ December 03, 2001: Message edited by: Hotler ]

Some of you may remember Honda's OLD kill switches. They had 3 positons...... OFF/ON/OFF and were on a dial switch. It was real fun to reach over and turn your buddy's bike off while riding :)

We used to get such fun with Honda riders.......

1)Petcock trick

2)loose spark plug cap


4)Old Honda switches

5)mudhole splashes

Ah the fun of riding with friends..........

On Canadian 400S we have no off on the fuel switch

just ON RES and PRI for prime so no fun with the watching your mate get half way up the hill before fuel out gag :)

On the plug wire thing i remember a friend of mine many years ago had a 125 twin Yamaha two-stroke and if you switced the plug wires the engine would start but run in reverse!

First time we done it we thought it would not run but anyway he came out of the store hopped on it started it, seen us all watching so he reved it up and let out the clutch to power wheelie and promptly fell off much to our merriment :D

Like Dendrz said, the S models don't have an "off" position, but rather use vacuum to allow fuel to flow from the tank (I think). I leave mine in the "on" position all the time. It is important to turn the petcock to "off" on the YZF series, because it makes them even harder to start if it is left on while trailering it.

I left my petcock on with my E for 2 months and gas drained down and gummed up the rings and it would not start. Took me about 2 weeks to figure that one out with a few of my friends. And another good petcock story. The old VW bugs used to have a reserve lever under the dash with no fuel guage. When you ran out of gas you just switch to reserve and find a gas station. Unless your buddy would switch it to reserve when you weren't looking. Now THAT is a mean trick.

I plan on putting a generic model Keihn FCR39mm carb on my S over Christmas (from Carb Warehouse). I hear there is some Suzuki fitting that screws into the intake manifold and has a tube fitting that I could attach to my S's fuel valve to provide the needed vacume to operate it. My local dealer is an idiot, and I don't feel like spending an afternoon explaining this to him, so could anyone help me out with a part number or anything else that would help?



Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By BikeChimp
      I'd like to turn my UK 2004 DRZ400S back to stock airbox (snorkel) and jets, needle shim position etc
      When I bought it the PO had fitted a Sigma6 kit and done the 3x3 mod but is doesn't have a tapered needle like the JD and other kits. Took me ages to get it running right, however it still runs rich and I'm fed up of arsing around with it. 
      So I've bought a standard airbox without 3x3 hole, stock exhaust.
      Q1 The Suzuki manual says this Mukuni BSR36 (29FA) carb should have a 142.5 Main Jet but the Clymer manual say its a 135.  In UK everything's from sea level to 1000m. I'm in Sheffield so nothing gets above 500m even in the Peaks (Hills). Any UK owners or anyone else know what the correct jet should be?
      Q2 Says the original needle is a '5DH36-2nd'. The needle has 5 notches on it. Currently set at 2 clip from bottom. The Suzuki reference says needle is 5DH36-2nd, Does the 2nd bit mean 2nd from top or bottom?
      Q3 - Does anyone have a detailed photo of the shim order just in case it was assembled wrong. (mine is attached)
      I know most people on here are going to be horrified I'm taking back to stock but any help on above would be really appreciated.

    • By Bgringo
      I've read a lot of threads about this but still haven't found exactly what I'm looking for.  I'm pulling my 2004 DRZ400S out of storage sometime this week and getting it ready for the season.  I live at 9,000 ft, but my first ride of the year is probably going to be at around 5,000 ft.  I was going to pull the 145 main jet I'm running and put in the 150 adjusting the needle from the 2 clip to the 3rd, then re-jet once I got home.  I already have the extended fuel mixture screw in place so I started thinking that I should just run the 150 jet set up and adjust the fuel screw to compensate for the higher elevation where I'll be doing most of my riding.  I will be going down in elevation for rides until late May or June depending on snowfall, but riding on the street when I'm able.  Are there any disadvantages with this?
      I'm new to posting on this forum, so please forgive me if I didn't get the right search words in and there is already a post about this.
    • By Markl5557
      I am currently running 10w 40 Belray non synthetic and I want to switch to full synthetic amsoil .... is it ok to switch from regular to synthetic? I have read it’s not safe to go from synthetic to regular can someone explain if it’s safe to go from regular to synthetic!? Thanks !
    • By RockyMtnMark
      Good Morning,
        Last night I measured my valve clearances for the very first time (I know...) on my DRZ400S.  It's a 2002 and I've owned is since 2011.  I bought it with t's got about 15,000 miles on it and most of it's miles these days are on dirt.
      Intake specs are 0.10-0.20 mm.  Exhaust specs are 0.20-0.30
      My intake valve clearances are in spec, forgot to write them down.  My exhaust valve clearances are between 0.1778 and 0.2032 which is slightly out of spec.  They are no more than 25 microns out of spec.  My question is, do I really need to shim these?  Will this kind of out-of-spec cause performance, mechanical, or other losses?  As far as I can tell, I'd have to buy a whole shim kit which is like $80.  Thanks!
    • By Zach440
      Selling my 2009 Drz400sm. Been a great bike but it’s time to let go . Not looking for any trades - spring is just around the corner ! Located in northern Virginia . Cash only $4200- willing to negotiate I have some wolfman luggage options available as well. Love to make a package deal for someone 

      -11640 miles . Mild off-road never wrecked.
      -Oil / filter changed every 1500 miles
      -New did chain , brake pads , front sprocket at 10400 miles .
      - valves checked and within spec at 10,000
      - jetted with JD kit and 3x3 mod
      -doubletake mirrors
      -waterproof usb wired and located next to Speedo
      - drc large foot pegs , barkbusters with integrated turn signals . 12oclocklabs tall delete with upgraded circuit board
      -thumpertalk case savers
      -sergeant seat (amazing) and Clarke 3.9 tank (190mile range )
      - fog lights wired in so they shut off with high beams
      -Shorai lithium battery
      -led headlight

      - stock gas tank and seat will be included

      The bike is dirty in photos and I apologize my water is currently disabled outside due to freezing temps . Radiator guards and skid plate NOT included but can be for some extra $$. Rear tire could be replaced but front is fine .