Transmission 79-81 schematic Honda Atc70 1981 Usa

THE most important mechanical assembly in the transmission if this is not right the rest of the engine will be sub-standard!
Renewing as many new parts as possible at the same time is almost like an insurance policy - don't leave to too long though, these COUNTER-SHAFT assemblies are in short supply!

Rebuilding the transmission is easier when as many parts as possible are renewed - interfacing old parts with new can lead to premature wear of those new parts!

One of the many principal components that is likely to wear, and suffer long term damage in the transmission, is the COUNTER-SHAFT SECOND GEAR. When rebuilding the transmission assembly, where possible replace all of the wear prone items for a smoother delivery of power with minimal backlash.
You may wish to check out this related item:

23441041050

One of the many principal components that is likely to wear, and suffer long term damage in the transmission, is the COUNTER-SHAFT SECOND GEAR. When rebuilding the transmission assembly, where possible replace all of the wear prone items for a smoother delivery of power with minimal backlash.
You may wish to check out this related item:

23441041050

A new genuine Honda part like this MAIN-SHAFT TOP GEAR is a guarantee of correct machining and the correct grade of materials used in the manufacturing process - rebuilding the engine and transmission will, with genuine Honda bearings included, be like an insurance policy!
For your entire Honda parts requirements, access our online 'Product Gallery' or where available the online schematic for your model, and take a more informed decision when placing your order.
Check out these related items:

23471041040
23471041030
23471041000

Replacing this high wear item with a new genuine Honda sprocket, means that it will fit perfectly, the pitch and machining will be exactly to spec, and the heat treatment and hardening process will be exactly right, to ensure even wear on both this and the final drive chain.

Will the cheaper (in all respects!) none Honda made alternative deliver in every area you know you can expect when specifying genuine Honda parts?

Rebuilding the gearbox - If yes read on!
Renewing ALL the the thrust, lock and plain washers at the same time will attain the best results.
Interfacing used parts with new will lead to premature wear of the new parts and compromise long term durability!
You may also require the part numbers listed:

90446357000
90452166600
90466166600
90452437000
90451121000
90461115000
90464166000
90465166600

Renew this 17mm CIRCLIP in conjunction with the other items that make up the complete assembly- Interfacing worn parts with new can cause premature wear or damage to the new items!
Another related item you may wish to purchase:

9451016000

We are delighted to ship as much or as little as your order stipulates, but the more comprehensive your order the better value, our already competitive shipping charges become!
So before placing your order for this replacement fastener related component check out the on-line gallery and schematic for your model and get even better value!
This is the M6 x 8 HEX BOLT

We are delighted to ship as much or as little as your order stipulates, but the more comprehensive your order the better value, our already competitive shipping charges become!
So before placing your order for this replacement fastener related component check out the on-line gallery and schematic for your model and get even better value!
This is the M6 x 8 HEX BOLT

When purchasing bearing assemblies for rebuilding a Honda engine use only genuine Honda bearings, as used in the Honda factory. Anything else is simply not Honda!
You may require other bearings for the re-build? Check out:
961006201000
961006204000
961006205000