Changing out tanks

[rknef777]

Could use some advice on going with the interstate tank on my tourer.   Any and all  sugestions appreciated.  First question is the petcock the same on all models or is it different on the interstate.  i would think it is the same.  Next anyone have experience with the sending unit.  I want to hook it up to my dakota digital guage that accepts a fuel input.  I want to clean the tank out real good before i have it preped and painted.  This is my next big project and I could use the input. 

[Pete]

Petcock is the same.

[98valk]

bolts right on.
do a search for issues with the OEM sending unit and using an after market gauge. there were some issues to make it work.
I didn't bother with a gauge with the I/S tank I put on my std/tourer. I have the petcock reserve and trip meter.

[Jess from VA]

http://www.timskelton.com/valkyrie/how_to/tank.htm

Old, links don't work.

Remember your driver's seat nose will be a bit long, but fit.  Need a key for it, won't match yours, might be re-keyed to match (might walk the parts to a lock and key outfit before install.

Clean the internal tank screen/intake tube (4).

No exp on sending unit, but if the tank doesn't come with one, I think you can order one (several parts).

That phillips head screw inside the petcock selector is really a JIS (Japanese Industrial Standard) screwdriver screw (23).  http://www.webbikeworld.com/motorcycle-tools/jis-screwdrivers/    A phillips will work but don't bugger it up.

I am not sure if the #10 rubber bumpers are the same on both size tanks (see if the part numbers match).

http://www.servicehondapsn.com/fiche_section_detail.asp?section=4223950&category=Motorcycles&make=Honda&year=1999&fveh=188145

[John Schmidt]

If your Dakota Digital unit is programmable, then you're OK. Otherwise you'll have to find one that is. I've used an Autometer C-2 for many years and is programmable....and pricey. Motosens also makes one used by a number of Valk riders. The problem is with the sender, it works backwards from the normal industry approach. Full = 0 ohms; Empty = 90 ohms.

There is a way to change that but for now, that is what you're faced with.

[rknef777]

Thanks all,  some ggod info,  the dakota is programable and the tank is coming with a sending unti. Havent got the tank yet.  But all should work.. Nice to have the bigger  tank when all saiid and done.
Maybe i should of bought a interstate to begin with but love my bike. Will post pics later.

[brian1726]

I fitted a interstate tank to my std last year.
No problems...fits straight on.
The seat sits tight up against the tank but even
with my L/wool seat cover it fits.
I put the sender wire's up under the tank so if I
ever decide to hook it up it later,it will be easy.
The couple extra litre's is a real bonus.
Best mod I done.
cheers...
Brian 

[sixlow]

Petcock is the same.

I had a friend tell me when they installed the petcock from the Tourer into the I/S tank the bike still ran out of fuel at 130 miles, but the reserve was much greater.  Probably not a concern of yours but thought it was worth adding here.

[rknef777]

Thanks all.  I just bought a new petcock on ebay so i hope its good to go. Also i have the ultamate big boy seat but i still think it will do fine.  I dont think the tank is any longer just wider.

[Willow]

I had a friend tell me when they installed the petcock from the Tourer into the I/S tank the bike still ran out of fuel at 130 miles, but the reserve was much greater.  Probably not a concern of yours but thought it was worth adding here.

Better check your friend's credibility.  The petcocks are the same and the "reserve"  is simply a distance from the bottom of the take (length of the petcock tube for "on").

Pinching the fuels tank's vent tube can cause it to seem to run out of gas early but it has little to nothing to do with the petcock. Little rather than none because switching to reserve can sometimes cause it to start flowing again initially.

[Gavin_Sons]

Petcock is the same.

I had a friend tell me when they installed the petcock from the Tourer into the I/S tank the bike still ran out of fuel at 130 miles, but the reserve was much greater.  Probably not a concern of yours but thought it was worth adding here.

Your friend is full of it. I don't doubt he had a problem but instead of tracking it down he just associated it with the IS tank. I cant even understand his logic. The petcock is the exact same on both models, the IS tank has more volume so therefore will go more miles before reachimg the screen on the petcock. 

[BigBF]

FYI: I got both OEM petcock last May 2015 when I work on interstate Valk and tourer Valk at same time I got both of new Petcock, both are different part number and on I/S petcock is few dollar cheaper so I remember talking about it before about what's the difference until I finally got the chance to compare both of petcock.

The interstate petcock are 5mm shorter than std/tourer.

About run out of fuel on position if use tourer petcock on I/S and tourer petcock on tourer tank same? No interstate has more fuel and will run out around 170-180 miles on tourer run out about 130-140 miles. Use interstate petcock on I/S  will last about 180-190 miles.

Which one I would buy petcock would be I/S petcock on both size of tank.
 

[sixlow]

Thanks Bill.   

[Bighead]

Thanks all.  I just bought a new petcock on ebay so i hope its good to go. Also i have the ultamate big boy seat but i still think it will do fine.  I dont think the tank is any longer just wider.

Unless the Petcock you bought from fleabay is an OEM I wouldny use it.
Jess no lock and key guy needed just swap the tank caps.

[98valk]

FYI: I got both OEM petcock last May 2015 when I work on interstate Valk and tourer Valk at same time I got both of new Petcock, both are different part number and on I/S petcock is few dollar cheaper so I remember talking about it before about what's the difference until I finally got the chance to compare both of petcock.

The interstate petcock are 5mm shorter than std/tourer.

About run out of fuel on position if use tourer petcock on I/S and tourer petcock on tourer tank same? No interstate has more fuel and will run out around 170-180 miles on tourer run out about 130-140 miles. Use interstate petcock on I/S  will last about 180-190 miles.

Which one I would buy petcock would be I/S petcock on both size of tank.
 

BigBF
can I just shorten the one from my std tank 5mm and be good to go for my I/S tank?
thanks

[BigBF]

FYI: I got both OEM petcock last May 2015 when I work on interstate Valk and tourer Valk at same time I got both of new Petcock, both are different part number and on I/S petcock is few dollar cheaper so I remember talking about it before about what's the difference until I finally got the chance to compare both of petcock.

The interstate petcock are 5mm shorter than std/tourer.

About run out of fuel on position if use tourer petcock on I/S and tourer petcock on tourer tank same? No interstate has more fuel and will run out around 170-180 miles on tourer run out about 130-140 miles. Use interstate petcock on I/S  will last about 180-190 miles.

Which one I would buy petcock would be I/S petcock on both size of tank.
 

BigBF
can I just shorten the one from my std tank 5mm and be good to go for my I/S tank?
thanks

Nah you can still use std petcock on I/S tank.

[rknef777]

A little confused here guys.  Sounds like there is a small difference, 5 mm. But that it does not really make a difference.  Both seem to work n either bike.  Just wondering if i should get the interstate petcock or leave the one thats alredy on my tourer, which works great.  Or should i change it out so it is new.

[The emperor has no clothes]

A little confused here guys.  Sounds like there is a small difference, 5 mm. But that it does not really make a difference.  Both seem to work n either bike.  Just wondering if i should get the interstate petcock or leave the one thats alredy on my tourer, which works great.  Or should i change it out so it is new.

If the one you have is good I'd stay with it.

[Cracker Jack]

A little confused here guys.  Sounds like there is a small difference, 5 mm. But that it does not really make a difference.  Both seem to work n either bike.  Just wondering if i should get the interstate petcock or leave the one thats alredy on my tourer, which works great.  Or should i change it out so it is new.

You will see this difference.

If you use a petcock from an Interstate (shorter) on a Std/Tourer, you will experience a little less reserve range and a little more range before reserve. Total tank range does not change.

If you use a petcock from a Std/Tourer (longer) on an Interstate, you will experience a little more reserve range and a little less range before reserve. Total tank range does not change.

You have to decide if this small difference is important to you.