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1978 Honda CB400TI Hawk I Tools & Accessories

For a 1978 Hawk I, these choices cover two separate jobs: comparing carburetor vacuum and replacing the helmet-holder lock. Check the gauge connection before planning carburetor work, or compare the existing lock mounting before ordering the replacement with keys.

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Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

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Logo patch 4 x 1 in. motorcycle garage patch

VintageCB750 Logo Patch ~ 4 x 1 in.

$7.87 USD
08-0318
Show off your VintageCB750 pride with this VintageCB750 Logo Sew-On Patch, featuring metallic red thread. Looks great sewn onto a riding jacket, hat, or...
Honda CB1100 CB1000 CB900 helmet holder lock w keys 50710-086-007

Honda CB Helmet Holder Lock w Keys ~ Replaces 50710-086-007

$27.95 USD
73-0141
Replace your helmet holder lock with this Helmet Holder Lock with Keys, replacing OEM #50710-086-007.Key Features• Helmet holder lock with keys• Replaces OEM #50710-086-007•...
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750 four engine t-shirt (xl size)

750 Four Engine T-Shirt (XL Size)

$29.95 USD
3/XL
Pay homage to Honda's groundbreaking inline-four with the 750 Four Engine T-Shirt in Extra Large. A black 100% cotton tee featuring a beautifully rendered...
New
Universal motorcycle beanie hat toque

Universal Motorcycle Beanie Hat/Toque

$15.95 USD
19-0117
Represent classic Honda style with this Honda Beanie Hat / Toque. Black knit with the classic Honda logo on both sides. One size fits...
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750 four engine t-shirt (large size)

750 Four Engine T-Shirt (Large Size)

$29.95 USD
3/L
Celebrate the iconic SOHC inline-four with the 750 Four Engine T-Shirt in Large. Printed on a quality 100% cotton black tee, the front graphic...
New
Red Honda logo hat vintage motorcycle hat

Red Honda Logo Hat

$22.95 USD
61-1132
Add a Red Honda Logo Hat to your gear collection. Velcro adjustable back.Key Features• Red Honda Logo Hat• Velcro adjustable backPart Number: 61-1132
New
Blue Honda racing hat vintage motorcycle hat

Blue Honda Racing Hat

$22.95 USD
61-1133
Add a Blue Honda Racing Hat to your gear collection. Velcro adjustable back.Key Features• Blue Honda Racing Hat• Velcro adjustable backPart Number: 61-1133
750 four engine t-shirt (medium size)

750 Four Engine T-Shirt (Medium Size)

$29.95 USD
3/M
Pay tribute to the heart of the CB750 with the 750 Four Engine T-Shirt in Medium. A black 100% cotton tee featuring a beautifully...
Universal motorcycle carburetor synchronizer vacuum gauge 2 carb synchronizer

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer

$54.95 USD
37-0003
Carburetor and throttle body synchronizer kit for bikes with 2 Carbs. Makes synching your carburetor setup fast and easy! For use with Honda, Kawasaki,...
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New
Universal motorcycle face mask

Universal Motorcycle Face Mask

$17.50 USD
13-0005
Keep road debris out of your eyes with this Face Mask with removable goggles. Features air holes in the mouth area and on the...
Established 2010 t-shirt (xl size)

Established 2010 T-Shirt (XL Size)

$26.95 USD
2/-XL
Proudly display your place in the CB750 community with the Established 2010 T-Shirt in X-Large. A black 100% cotton tee featuring the "Established 2010...
New
Honda hrc logo trucker hat

Honda HRC Logo Trucker Hat

$27.95 USD
61-1144
Top off your kit with this Honda Logo with HRC Emblem Trucker Hat. High-quality hat with beautifully stitched Honda logo. Snap-on adjustable back.Key Features•...
New
White Honda logo hat vintage motorcycle hat

White Honda Logo Hat

$22.95 USD
61-1142
Add a White Honda Logo Hat to your gear collection. Velcro adjustable back.Key Features• White Honda Logo Hat• Velcro adjustable backPart Number: 61-1142
Established 2010 t-shirt (large size)

Established 2010 T-Shirt (Large Size)

$26.95 USD
2/-L
Celebrate the CB750 community in this Established 2010 T-Shirt (Large). A black 100% cotton tee featuring the "Established 2010 VintageCB750 Logo" on the front,...
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750 four engine t-shirt (xxl size)

750 Four Engine T-Shirt (XXL Size)

$29.95 USD
3/2XL
Wear your respect for Honda's legendary four-cylinder on your chest with the 750 Four Engine T-Shirt in XX-Large. A 100% cotton black tee featuring...
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Established 2010 t-shirt (xxl size)

Established 2010 T-Shirt (XXL Size)

$26.95 USD
2/-2XL
Represent the CB750 scene in this Established 2010 T-Shirt (XX-Large). A roomy, soft 100% cotton tee in black with the "Established 2010 VintageCB750 Logo"...
New
Universal motorcycle bottle opener vintage garage accessory

Universal Motorcycle Bottle Opener ~ Vintage Garage Accessory

$14.95 USD
19-0118
Find a great gift for any motorcycle fan with this Motorcycle Bottle Opener. Sturdy construction with an aged brass look. 5" x 1.5".Key Features•...
New
Honda 93 red hat vintage motorcycle hat

Honda 93 Red Hat

$29.95 USD
61-1145
Top off your kit with this Honda 93 Red Hat. High-quality hat with beautifully stitched logos.Key Features• Honda 93 Red Hat• Beautifully stitched logosPart...
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T-shirt (small size)

Classic T-Shirt (Small Size)

$20.59 USD
00-0001/S
Wear your passion for classic Hondas with the VintageCB750 Classic T-Shirt in Small. This 100% cotton tee comes in black with the VintageCB750 logo...
Established 2010 t-shirt (medium size)

Established 2010 T-Shirt (Medium Size)

$26.95 USD
2/-M
Honor the CB750 community in everyday comfort with the Established 2010 T-Shirt in Medium. A black 100% cotton tee carrying the "Established 2010 VintageCB750...
Established 2010 t-shirt (small size)

Established 2010 T-Shirt (Small Size)

$26.95 USD
2/-S
Commemorate a decade-plus of CB750 community with the Established 2010 T-Shirt in Small. This black 100% cotton tee carries the "Established 2010 VintageCB750 Logo"...
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Honda Gold Label T-Shirt - Black

Honda Gold Label T-Shirt - Black

$29.95 $27.95 USD
You save $2.00
33/M
A black Honda tee with the Gold Label wing graphic printed on the front. Factory Effex uses a lightweight cotton and polyester blend for...
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1978 Honda CB400TI Hawk I · Tools & Accessories Buying guide

Choose for the workshop job or parking accessory

The vacuum gauge kit is a universal two-carburetor tool, while the helmet-holder lock has a specific replacement reference. Keep tool connection requirements separate from the physical checks needed for a lock replacement.

Parts to consider

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer Two-carburetor vacuum gauge kitUniversal two-gauge kit with hoses, damping valves, mounting bracket and 5 mm-thread extensions in 65 mm and 180 mm lengths.View part Honda CB Helmet Holder Lock w Keys ~ Replaces 50710-086-007 Helmet-holder lock with keysHelmet-holder lock supplied with keys, replacing reference 50710-086-007.View part

Check the gauge kit contents

The kit contains two gauges, a mounting bracket, hoses, damping valves and instructions. Its 5 mm-thread extensions are supplied in 65 mm and 180 mm lengths. Check the vacuum connection and access on your intake setup before planning to use this universal tool.

Replace the holder with a key plan

The helmet-holder lock replaces reference 50710-086-007 and includes keys. Compare the mounting on your motorcycle before ordering, especially after frame or seat-area changes. Keep a separate-key plan unless a matched-key arrangement has been confirmed for the replacement.

Buying questions

Will the gauge kit fit every set of replacement carburetors?

No universal fit should be assumed. The supplied extensions use 5 mm threads. Confirm the vacuum connection and physical access on your Hawk I’s intake setup before buying the kit.

What comes with the two-gauge kit?

The kit includes two gauges, a mounting bracket, hoses, damping valves, instructions and 5 mm-thread extensions in 65 mm and 180 mm lengths. Check that these connection sizes suit your planned job.

Does the helmet lock use my existing ignition key?

The replacement helmet-holder lock includes its own keys. Do not assume they match the ignition or another existing lock; resolve any single-key requirement before ordering.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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