Motorcycle Forum banner
1 - 11 of 11 Posts

·
Registered
Joined
·
13 Posts
Discussion Starter · #1 ·
Does anyone know if the Kawasaki KZ440 ltd (1981) has a reserve tank? I was looking at the one I might get and I noticed that there wasnt a fuel gauge or low fuel indicator. Are there any bikes that have no reserve tank, no gauge, and no low fuel light?
 

·
Registered
Joined
·
2,632 Posts
No bikes have a reserve tank.....they might have reserve, but its NOT a separate tank.

How reserve works is the petcock tube sticks into the tank roughly 2 inches. On the regular setting it pulls from the top of the tube. This way when you "run out" of fuel you can switch to reserve and pull from the bottom half of the tube.

Yes....Ive got two 1981 KZ440 LTDs and they have reserve.

Typically the only bikes that dont have reserve are those that are fuel injected.....and all of them Ive seen have fuel gauges. This isnt always the case....for instance my 1984 Goldwing that does NOT have a reserve.....and its NOT fuel injected.....but it does have a gauge.

With all the different bikes out there....Im sure there has to be one that has no reserve, no gauge or no light......but I havent seen one.
 

·
Registered
Joined
·
2,632 Posts
Is there a switch to turn it to reserve from regular and vice versa? If there is, where is it on a 1981 KZ440 Ltd?
Every motorcycle I know of uses the petcock to change between reserve and regular......as well as having an off option. Some petcocks are vacuum operated so there may not be an off.....but there will still be a selection between regular and reserve.....and usually a prime option.

My 1982 KZ440 LTD has a vacuum operated petcock....my 1981 does not, but its not original so I have no clue what it had to start with.
 

·
Registered
Joined
·
2,632 Posts
I'm pretty sure Kawasakis started using vacuum petcocks in all their bikes in the mid- to late-70s.
Well I know thats not the case.....cause I have a bone stock 1980 KZ1000 that has a manual petcock. Im pretty positive the Ninja model line into the mid 90s had manual petcocks....atleast from the rebuild kits Ive been looking at.
 

·
2007 Yamaha Road Star Silverado 1700
Joined
·
4,671 Posts
Who knows? I'm looking at Z1Enterprises petcock rebuild kits for 1977 KZ1000s and they are vacuum operated. Same goes for the 1989 ZX600.
 

·
Registered
Joined
·
2,632 Posts
Im looking at the same info....

A1 (1977 standard) models were manual

A2 (1978 model standard), A3 (1979 MKII), A4 (1980 MKII) were vacuum.

C1 (1978 police), C2 (1979 police), C3 (1980 police), C4 (1981 police) were vacuum.

The B1, B2, B3 and B4 models....which were LTDs from 1977 to 1980 are manual.

The D1 (1978) and D3 (1980) models, which are the Z1s are manual.

The E1 (1978) and E2 (1979) models are vacuum.

The G1.....which is the 1980 Classic model with fuel injection uses a manual petcock.

Likewise alot of the KZ750 lineup uses manaul petcocks....while some of the smaller bikes use vacuum.

There really isnt any rhyme or reason.....or year cut off for manual vs vacuum.....atleast not with Kawasaki.

As far as the 1989 ZX600....I dont even see a rebuild kit listed at Z1 for it. I see one for the 1987 ZX600 and its vacuum....so Im guessing that your likely correct that the 1989 ZX600 is vacuum as well.

.....but there are alot of KZ models....and they differ drastically in the small parts. All I know for sure is that they did not start using them in all of their models in the mid to late 70s......not even close.

Mine is a 1980 B4 model....the LTD....with a manual petcock.
 

·
2007 Yamaha Road Star Silverado 1700
Joined
·
4,671 Posts
Musta just been my imagination, then. Coulda swore I read that they made the switch over for safety reasons in the late 70s on the KZRiders forum. Oh well.
 
1 - 11 of 11 Posts
Top