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1978 Honda CB400TII Hawk II Tools & Accessories

These 1978 Hawk II choices serve two distinct needs: checking the twin-carburetor balance in the workshop and replacing the helmet holder for parking. Match the gauge adapters to the motorcycle and inspect the helmet-lock mounting before ordering either item.

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Honda motorcycle parts

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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 CB400TII Hawk II · Tools & Accessories Buying guide

Choose a workshop tool or a parking accessory

The two-gauge synchronizer is a universal tool with specified adapters and hoses. The helmet holder is a replacement lock supplied with keys. Check the tool connections and lock mounting against the equipment already fitted.

Parts to consider

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer Two-gauge carburetor synchronizerUniversal two-carb kit with hoses, damping valves, mountable bracket, instructions and 5mm-thread extensions in 180mm and 65mm lengths. Check adapter fit and access on the fitted carburetor arrangement.View part Honda CB Helmet Holder Lock w Keys ~ Replaces 50710-086-007 Helmet holder lock with keysReplacement helmet-holder lock supplied with keys, using reference 50710-086-007. Compare the frame mounting point and hook clearance before ordering for a modified motorcycle.View part

Check the gauge kit against your working space

The synchronizer supplies two gauges, hoses, damping valves, a mountable bracket, instructions and 5mm-thread extensions in two lengths. Check the access needed at the motorcycle before ordering. Use the Honda service information for the preparation and adjustment procedure rather than treating the tool as a cure for an undiagnosed running fault.

Replace the helmet holder around the existing mount

The helmet holder is supplied with keys and uses the 50710-086-007 reference. Compare the fitted lock and frame mounting point, including room for the hook to operate. If a seat or bodywork conversion has changed this area, check the resulting clearance before selecting a replacement.

Common buying questions

What comes with the two-gauge synchronizer?

The kit includes two gauges, hoses, damping valves, a mountable bracket, instructions and 5mm-thread extensions in 180mm and 65mm lengths. Confirm that the adapters and access suit your motorcycle before use.

Will the helmet holder use my ignition key?

The replacement comes with its own keys. Matching it to your existing ignition key is not a stated feature, so plan to use the supplied keys unless a locksmith verifies another option.

Can the synchronizer fix every uneven-idle problem?

No. It is a measurement and adjustment tool for comparing two carburetors. Follow the service manual preparation and diagnose underlying running faults before using the gauges to set the carburetor balance.

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