[nycsv]

You were confused by the words of a member that did not have a solid grasp on the English language. He is gone now.

I thought he was sarcastically critiquing the OP's dialogue. Sounded like his knowledge of English vocabulary was above-average and his phrasing was an intentional parody of the OP.

 

[JustWantToRide]

Does anyone have pics of this mod on the FZ? Seems like a no brainier when I finally get it.

In retrospect, my old car was a Mazda RX-8, and at 17mpg I would average about 220 mi. Per tank...seemed to be alright.

The FZ-09 tank might pick up as much as 1 liter - but for a free mod that's not bad... The filler necks have the additional space to reduce overflows - so don't fill up the extra bit and then park it - or it might pee gas all over your garage. I don't think you can remove the filler to do it - so you'll have to remove/drain the tank and then flush it. I'll probably do it eventually, like the first time I pull the tank anyway. I'm interested in how much extra anyone else gets (and we need to see a picture to know how high the hole was). Being able to get right under the locking lip with a 1/8 inch bit would be nice - but I think even my dremel flex end will need more room.

 

[MikeOR02xx]

This is what I used, puts nice holes in with little chance of making chips to get into the gas. Wad up a small piece of rag or paper towel and stuff it to the bottom of the neck while you unscrew this to make the holes. I used long nose Vise Grips on the barrel and an open end on the nut. One pic shows my poor drawing of the neck with the tool up under the lip at the top of the neck. I will try to get pics on the bike later if the day warms up enough. I put five holes in on the right side of the neck (that's where you want them if you fill with the bike on the side-stand) and as long as the pump you are filling with has some control you can top the tank off.
>>Hope the on-bike pics make it easy to see the results. The first fill after putting them in I had the nozzle trough the hole on the bottom of the neck and was going to try and get just to bottom of the neck and see how much more I could squeeze in - the vent worked so well the first time the pump shut off the gas level was already 3/8" up the neck. With 4" of snow and highs in the low 30s for the next week or so it will be a bit before I can get to the pumps again :<(

 

[knobbyaddiction]

I don't get it. But hey, I'm kinda slow still from the 80's.

 

[JustWantToRide]

I don't get it. But hey, I'm kinda slow still from the 80's.

It rests inside the filler area, and then you unscrew it to open it and the pointed side punctures the side of the filler neck to create a hole for trapped air to escape. Because it is piercing and not drilling - there are no shavings going into the tank. You just need to be careful that you don't push the filler area out of round. Seems that it would work much easier than drilling.

Put the hole(s) inside the filler neck at the level of the red dotted line and you can then add fuel to that level because trapped air can escape...

I can't wait to hear how much more gas will fit...

 

[LehighLuke]

View attachment 2222 View attachment 2223 View attachment 2224
This is what I used, puts nice holes in with little chance of making chips to get into the gas. Wad up a small piece of rag or paper towel and stuff it to the bottom of the neck while you unscrew this to make the holes. I used long nose Vise Grips on the barrel and an open end on the nut. One pic shows my poor drawing of the neck with the tool up under the lip at the top of the neck. I will try to get pics on the bike later if the day warms up enough. I put five holes in on the right side of the neck (that's where you want them if you fill with the bike on the side-stand) and as long as the pump you are filling with has some control you can top the tank off.

Clever

 

[s fortuna]

mine was easy . punched a hole .got it with no fuel in it . never even ran it till a month after i got it

 

[LehighLuke]

I just did the mod...this thread inspired me again. I had a pair of retaining clip pliers, with removable tips, and the tips are locked in with #6 set screws. I took out the set screw, and replaced them with a hardened screw that I fashioned into a point, and the other side was a flat headed screw...so essentially I had a pointed end spreader....it took alot of force, and bent the pliers...but I got 3 tidy 1/8" holes. hopefully that works
too lazy to take pics

 

[motomania]

The FZ-09 tank might pick up as much as 1 liter - but for a free mod that's not bad... The filler necks have the additional space to reduce overflows - so don't fill up the extra bit and then park it - or it might pee gas all over your garage. I don't think you can remove the filler to do it - so you'll have to remove/drain the tank and then flush it. I'll probably do it eventually, like the first time I pull the tank anyway. I'm interested in how much extra anyone else gets (and we need to see a picture to know how high the hole was). Being able to get right under the locking lip with a 1/8 inch bit would be nice - but I think even my dremel flex end will need more room.

View attachment 1974

Just buy a pointed punch and punch a hole.

I did it but it only gains .2 gal, less than a liter, and if you fill it and then park it you will get gas pissing out the over flow due to heat expansion from the engine heating up the fuel.

BTW, if your bike is a California bike you MUST remove the charcoal canister BEFORE punching the holes or you will just fill up the charcoal canister which will then prevent your tank from drawing in air as the fuel level drops. Thus potentially causing some stalling issues. Unlikely to happen because the fuel pump is inside the tank BUT possible.

 

[Rayminator]

I too just did this mod, using a very sharp / long punch. I now have (3) 3/16" holes on the right side, as high as I could put them.
It only took less than a minute to do the task.

Motomania, is that .2 increase that you gained, when filling the tank, with the bike on the side stand, or with the bike upright, as if you are sitting on it?

 

[richp5132]

I'm sure I'm just being over cautious here but please be careful when performing this mod. The method that MikeOR02xx outlined seems relatively safe but drilling or punching the holes without removing the neck seems risky. sparks+gasoline=bad when it happens outside the combustion chamber. Ok, safety rant over.

 

[PegasusJockey]

we don't care if you guys burn yourself up
BUT
please don't burn the bike...ok
hehe

 

[LehighLuke]

most of these punch methods are slooowww piercing...no-sparks.

However...the thought didnt even occur to me. Doh!

 

[Rayminator]

most of these punch methods are slooowww piercing...no-sparks.

However...the thought didnt even occur to me. Doh!

It occurred to me.
The soft sheet metal, punches like nothing, with the correct punch..........very pointy and sharp.
One good rap, is all it took for each hole.

 

[versysrider]

I'm sure I'm just being over cautious here but please be careful when performing this mod. The method that MikeOR02xx outlined seems relatively safe but drilling or punching the holes without removing the neck seems risky. sparks+gasoline=bad when it happens outside the combustion chamber. Ok, safety rant over.

Ya, no way I would use a punch, too much risk of spark. But "MikeOR02xx" mod was very clever, and seemed much safer.

 

[Niner]

View attachment 2237 View attachment 2238 View attachment 2222 View attachment 2223 View attachment 2224
This is what I used, puts nice holes in with little chance of making chips to get into the gas. Wad up a small piece of rag or paper towel and stuff it to the bottom of the neck while you unscrew this to make the holes. I used long nose Vise Grips on the barrel and an open end on the nut. One pic shows my poor drawing of the neck with the tool up under the lip at the top of the neck. I will try to get pics on the bike later if the day warms up enough. I put five holes in on the right side of the neck (that's where you want them if you fill with the bike on the side-stand) and as long as the pump you are filling with has some control you can top the tank off.
>>Hope the on-bike pics make it easy to see the results. The first fill after putting them in I had the nozzle trough the hole on the bottom of the neck and was going to try and get just to bottom of the neck and see how much more I could squeeze in - the vent worked so well the first time the pump shut off the gas level was already 3/8" up the neck. With 4" of snow and highs in the low 30s for the next week or so it will be a bit before I can get to the pumps again :<(

Want to send that nifty tool my way?

 

[motomania]

I too just did this mod, using a very sharp / long punch. I now have (3) 3/16" holes on the right side, as high as I could put them.
It only took less than a minute to do the task.

Motomania, is that .2 increase that you gained, when filling the tank, with the bike on the side stand, or with the bike upright, as if you are sitting on it?

Sitting on the bike holding it upright. That is the difference between filling to the bottom of the filler neck (stock level) and filling to to above the holes I punched.

 

[motomania]

I'm sure I'm just being over cautious here but please be careful when performing this mod. The method that MikeOR02xx outlined seems relatively safe but drilling or punching the holes without removing the neck seems risky. sparks+gasoline=bad when it happens outside the combustion chamber. Ok, safety rant over.

No sparks with a sharp punch and a rag stuffed into the filler opening to prevent any issues. It takes 2-3 taps with a hammer and that is it.

BTW, I would not DREAM of drilling a hole as that would cause all sorts of debris/shaving to fall into the tank. There is no debris with the punch.

 

[edgyver]

It was a rare 75F here Sunday and I went for a 100 mile ride with my girlfriend following on her V-Star 950. While we didn't exactly go fast, we did run at/slightly above the limits most of the time. This evening I went to fill the FZ up and the math said I got 49.3 mpg on Texaco E10. If I could've maintained that average, 150 miles *might* be attainable. But, I wouldn't bet on it.
The bike's tank could be redesigned to hold another gallon of gas and still look much the same. We can only wait and see!

 

[motomania]

My bike gets right at 40 mpg and the tank runs dry about 25 miles after the odometer begins the count. I tested it the first day I rode the bike by carrying some extra gas with me waiting for it to run out. Then I added my carry on gas and I rode it to the nearest gas station (about a mile) and filled it up and it took 3.7 gallons plus the 16 oz I put in there from my "carry on gas" for a total of 3.8 gallons to get to the bottom of the filler neck. Filling it to the two holes I put in the filler neck brought the to total to 4.0 gallons. Previously I forgot to include my "carry on gas" in my total.

4 gallons x the 40 mpg = 160 miles

I would still like to have 200 mile range but that is going to take figuring out how to get another gallon in that tank and I don't see that happening without major "surgery."

I may wait until I find a wrecked fuel tank I can play with.