SKU: 63340414218

1986 Honda Z50RD 50cc Complete Top End Kit 12200-GK4-761 12301-086-000

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Description

1986 Honda Z50RD 50cc Complete Top End Kit 12200-GK4-761 12301-086-000Honda ST 50 Dax C 50 Z 50 Monkey Z50R XR CRF 50 50cc Complete Top End Kit Features: Complete engine cylinder Top end rebuild kit for Honda 50cc. If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, cylinder head, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Includes all gaskets pictured to rebuild

Honda ST 50 Dax C 50 Z 50 Monkey Z50R XR CRF 50 50cc Complete Top End Kit

Features:
Complete engine cylinder Top end rebuild kit for Honda 50cc.
If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, cylinder head, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 39mm, 13mm steel piston pin.
This kit is excellent as a low-cost replacement for defects in the original cylinder.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Material: Aluminum
Displacement: 49cc
Bore Type: Standard Bore
Bore Size: STD 39mm
Pin Diameter: 13mm
Cooling system: Air cooled

Replacement Part Number:
Cylinder: 12101-GB2-000
Cylinder Head: 12200-GK4-761
Cylinder Head Cover: 12301-086-000
Cylinder Head Cover Gasket: 12391-035-306, 12391-GB2-000
Cylinder Head R Side Cover: 12331-GB0-910
Cylinder Head R Side Cover Gasket: 12394-GB0-910
Cylinder Head L Side Cover: 12341-065-920
Cylinder Head L Side Cover Gasket: 12395-GB2-306
Valve Tappet Cap(x2): 12361-035-000
Cylinder Base Gasket: 12191-GW8-681, 12191-GW8-682, 12191-035-010, 12191-035-000
Cylinder Head Gasket: 12251-GBJ-003
Piston (Std): 13101-GBZ-701, 13101-GBZ-700
Pin, Piston: 13111-GB2-000
Piston Ring Set (Std): 13011-GBZ-702
Circlips, piston: 13115-001-000
Valve Stem Seals: 12209-GB4-681
Carb Insulator Gasket: 16201-165-A10

Fits Models:
Fit for Honda - 2004-2009 - CRF50F - Mini Cycle
Fit for Honda - 2011-2019 - CRF50F - Mini Cycle
Fit for Honda - 2000-2003 - XR50R - Mini Cycle
Fit for Honda - 1969-1978 - Z50A - Mini Trail
Fit for Honda - 1979-1999 - Z50R
Fit for Honda - 1986 - Z50RD
Fit for Honda - 1988 - ZB50
Fit for Honda - 1967 - Z50M
Fit for Honda - 1968-1969 - Z50A - K0
Fit for Honda - 1969-1970 - Z50A - K1
Fit for Honda - 1970-1971 - Z50A - K2
Fit for Honda - 1972 - Z50A - K3
Fit for Honda - 1973 - Z50A - K4
Fit for Honda - 1974 - Z50A - K5
Fit for Honda - 1975 - Z50A - K6
Fit for Honda - 1976 - Z50A - 76'/ Z50J1
Fit for Honda - 1977 - Z50A - 77'/ Z50J1
Fit for Honda - 1978 - Z50A - 78'/ Z50J1

Also fits Dax ST, Monkey, Gorilla, Chaly, SS, C, CD with 6 Volt (!) series engine, Jincheng, Dax Q5, Gorilla Q7, Sasy with 50cc cylinder head!
Fit for Honda - 1978-1990 - Z50J (6v)
Fit for Honda - 2009-2018 - Z50J (FI)
Fit for Honda - 1978-1988 - Z50G Gorilla (6v)
Fit for Honda - 1988-1990 - ST50 Dax
Fit for Honda - 1985-1996 - C50 Cub

(Compatibility Chart is for Reference ONLY!!!)
(Please Compare with Your faulty unit and the image we provided to Decide Fitment)

Package Includes:
1x Cylinder
1x Cylinder Head
1x Cylinder Head Cover
1x Cylinder Head Cover Gasket
1x Cylinder Head R Side Cover
1x Cylinder Head R Side Cover Gasket
1x Cylinder Head L Side Cove
1x Cylinder Head L Side Cover Gasket
2x Valve Tappet Caps
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x 39mm Piston (Std)
1x Piston Pin
1x Piston Ring Set (Std)
2x Circlips
2x Valve Stem Seals
1x Carb Insulator Gasket
1x O-Ring kit

Note:
Carefully compare to your old parts to be sure this is the correct part for your machine.

The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.

Warranty:
1. Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
2. 24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63340414218

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4.1 ★★★★★
Based on 23 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Soft Tank Top
Size: Small, Color: Bright White
Very soft material and comfortable and fits true to size, but the size is flowy/oversized or “relaxed” as they call it. If you want a tighter fit, size down. Perfect for layering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
S
Verified Purchase
Sunny Kate
Draper, US
★★★★★ 4
Drapes Without Clinging, Loose Fit, Odd Shoulder Seams
Size: Medium, Color: Forest Green
I bought the medium and it fits well but I probably could have gone with a small (I'm a size 10). I prefer a looser fit so it's fine with me. The fabric is soft, stretchy and drapes really nice without being clingy. The only thing I find odd is the neckline/shoulder seaming. If you put the shoulder seams where they belong, the back neckline drops lower than the front (the pictures show otherwise). It doesn't feel odd and with the dark color it's not noticeable but it's worth mentioning. I got it on sale, so it's a great value if you don't mind having to line dry.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
C
Verified Purchase
Coffee and Cats
Port Orchard, US
★★★★★ 5
Love the fit!
Love the fit and feel of this tank. Feels casual yet classic. I wish it came in more color/print options. A red stripe or a green stripe would awesome! I am 5'1" and 165 (large chest) and a large fit perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
R
Verified Purchase
Rawrr
Massapequa, US
★★★★★ 3
Love the print, but didn't like the style...
Size: Small, Color: Dark Camel Leopard
I'm 5'5 114lbs 34B and got the "camel" leopard print in size small. I think it's technically a cute shirt and it fits okay, I guess, but the style and color ended up looking terrible on me! For reference, the size small measures 21 inches long (from the center of the front collar to the bottom), and about 18 inches wide. I find the style really unflattering on me. The color seemed like it would be flattering for most skin tones, but it ended up making my yellowish skin tone (I'm half asian) look sickly. Also note that this shirt is made of rayon, which is sensitive to heat, so if you get it (and you like it) you should keep it out of hot water and avoid putting it in the dryer if you don't want it to shrink. As for the fit, I usually wear size small unless I want my shirt to fit oversized or flowy etc, so I got this in small. It fits loose enough to be comfortable, but this type of collar is so unflattering on me (I could deal if it was either higher or lower) and the curved hem and in-between length just doesn't suit my body type. LOL, apparently, the fact that it has a cool print still doesn't change the fact that the "muscle" tee style looks terrible on me. It might suit someone else though. The fabric is stretchy and soft, but it's not clingy or see thru (might be in other colors though). The armholes also don't gape at all (doesn't show any of my bra). I ended up having to return it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2022
T
Verified Purchase
Trizian Lacson - Canoza
Massapequa, US
★★★★★ 5
Comfy
Very comfortable clothes and it fits me just quite right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026

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