1975 Z1-B FIRST MADE 5/74
FRAME NUMBERS: Z1F-47500 TO Z1F-85700
ENGINE NUMBERS Z1E 047500 TO Z1E 085850
FRAME NUMBERS: Z1F-47500 TO Z1F-85700
ENGINE NUMBERS Z1E 047500 TO Z1E 085850
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All Z1B engine number stamps look the same.
The Z1B had two variations of white frame stickers:
One label the same style as the Z1A, and another featuring a slightly larger, bolder font.
The information on both were identical.
The Z1B had two variations of white frame stickers:
One label the same style as the Z1A, and another featuring a slightly larger, bolder font.
The information on both were identical.
2 colors: Candytone Super Red or Candytone Sky Blue. Both w/black, gold & white strips
Side cover emblems were larger
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Round caps on the back of side covers were used to hold the emblems on the Z1B, Z1 used rectangular.
Petcock was changed, noticeably adding the word FUEL and no longer painted black.
Exhaust are Marked KHI 900 Z1/750 Z2 DMG 13236S
Rear brake lining had a wear indicator with a decal showing Usable Range
Speedometer displays numbers in 10mph increments.
(Z1 & Z1A has 20mph increments)
(Z1 & Z1A has 20mph increments)
Carburetors were the redesigned Mikuni VM28SC 217 series
Choke Lever has a black cap with CHOKE & arrow highlighted in white
All Z1B carbs were marked 217 0
Choke Lever has a black cap with CHOKE & arrow highlighted in white
All Z1B carbs were marked 217 0
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Z1B has Yellow Seat foam padding
The drive chain oil lubrication system was removed and replaced with a new O-Ring chain, however the left side cover still has the hole for the drive chain oil tank dipstick that was never installed on the Z1B.
The tail section document tray no longer shows the wiring diagram
Z1B Label Found on the bottom of the seat pan
Front and Rear Turn signal lenses now have the raised letters K32714
The black plastic chain guard was redesigned for the Z1B to allow for the wider o-chain
Front Fork Top Yolk was changed visible on the underside, the new casting has a golf ball style dimpled surface.
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Z1 Specs: 903cc Engine, 82hp. Top speed over 125mph. 1/4 mile: 12 seconds.
Weight 506 lbs. *Approximately 540 lbs gassed up and ready to go
The 1975 900 had a $2150 suggested retail price. On occasion, prices were slightly higher at dealerships in the eastern states compared to the west coast since they factor in transportation costs.