Did you know the 1964 model H came out with new designed compression plates
Carburetor Data

webm...@harleytopperclub.com

 

BACK

Tillotson carburetor Model: MT76A fits: The Harley Topper A, 1959 to 1961..
Tillotson carburetor Model: MT76A fits: The Harley Topper AU, 1960 to 1965
Click on any of the parts to view image.

Harley Topper Carburtetor MT76A fits A , AU

Choke Wire assembly 73090-59 27680-55 27715-59 27702-55 27692-55 27716-55 27714-55 27673-55 27688-55 27699-59 27672-59 27672-59 27708-55A 27716-55 27689-55 652 27709-55 27707-57 27701-55 27700-55 27691-59 27671-55 27693-59 27694-55 27703-55 27683-55 27721-55 1065W 2545W 2546W 993 2540 2545W 993 27712-55 27710-59 27713-59



Identifying your carburetor model MD119, is it A or B.
click to view location on boss on carburetor.
How to identify your Harley Topper model MD119 Carburetor.



The Tillotson Carburetor Stamped on the Boss with the No. MD-119A
fits the AH Topper starting in 1961 and in early 1963, part no. 27143-61
(Fits on any AH model number from 1961 up to engine No: 63AH-1693)
The MD119A Throttle shaft goes completely through the carburetor body as pictured below in the MD-119A photo.
Carburetor has stainless steel choke and throttle shaft with stainless steel bushings.

The Tillotson Carburetor Stamped on the Boss with the No. MD-119B fits the AH Topper from 1963 to 1965
part no. 27143-63 ( Fits on any AH model year above Engine Number: 63AH-1693 up into all 1965 AH models. )
The MD119B Throttle shaft stops from going all the way through the carburetor body
and does not have the stop lever # 40 as pictured below in the MD119A photo.
But the MD119B has a stop lever on the same side along side the Throttle lever as pictured in the MD119B
picture below.

Also the MD-119B was used on the Harley servi-car from 1966 to GE also.
Click on any of the parts to view image.

Harley Topper Carburetor MD119A fits Topper AH from 1961 and 1962 27688-61 27689-61 27725-61 27726-61 27733-61 27730-61 27692-61 652 27690-61 27744-61 27743-61 27726-61 27727-61 27731-61 27733-61 27742-61 27728-61 27691-59 27715-61 27716-61 27716-55 27718-63 27740-61 27685-61 27700-61 27698-61 27701-61 27697-61 62375-57 27679-61 27693-61 27694-55 27735-61 27680-61 27684-61 27714-61 27414-61 27415-61 27704-61 27705-61 27727-61 27729-61 27731-61 27672-61 27715-61 27716-55 27716-61 27733-61

 

The only difference between the MD119B and the MD119A are as follows.
Throttle Stop Screw 2546W replaced by 27717-59 the idle adjusting screw.
No. 4 in picture below, 27249-65 Choke Shaft Washer.
No. 6 in picture below, 27672-63 Throttle Shaft and Lever.
No. 9 in piture below, 27630-63 Float Bowl.
No. 29 in picture below, 27718-63 Choke shaft and lever.
No. 37 in picture below, 27734-62 Inlet Screen.
The Choke and Throttle discs in the B are the same as the A and the needle and seat the same as A.
Also the main mixture screw and the main nozzle seems to be the same.
The only visible differences would be the throttle shaft lever is now on the opposite side as on the A, in which the
throttle cable mount at the dash had also changed above Engine Number: 63AH-1693.

Harley Topper Carburetor MD119B fits Topper AH from 1963 above engine No.63AH-1693 to 1965 Harley Topper MD119B Carburetor part numbers. 27688-61 27692-61 27689-61 27718-63 2545W 27725-61 27690-61 652 27716-55 27691-59 27740-61 62375-57 27679-61 27701-61 27697-61 27693-61 27742-61 27715-61 27672-63 27716-61 27700-61 27734-62 27694-55 27735-61 27698-61 27685-61 27680-61 27714-61 27743-61 27730-61 27733-61 27726-61 27731-61 27727-61 27705-61 27415-61 27704-61

27718-63

 

The Harley Topper used a Reed Valve on every model
from 1959 to 1965 on the A, AU, AH.
But used three different size air intake manifolds.
View the manifold numbers and types below.

Three different size air intake manifolds.

One. no. 27017-59 fit: 1959,1960 and 1961 A model.
NOTE: The manual shows number 27017-59 for the A model
manifold but the consensus is, that number is a misprint.
27018-59 seems to be the number found on most manifold castings on the A model.

Two. no. 27018-59 fit: 1959 to 1965 AU model. .... .....
Note: The AU used a special smaller-base manifold intake.
It was one of the key components to achieve the under 5-brake hp needed
for riders in states with junior licensing laws for engines under 5 hp engines.
Other parts needed to keep the horse power low was the following:
Low compression head, (the AU and the A used the same head),
Small carburetor intake passage ,small air intake hose
and long low resistance muffler.
NOTE: The manual shows number 27018-59 for the AU model
manifold but the consensus is, that number is a misprint.
27019-59 seems to be the number found on most manifold castings on the AU model.

Three. no. 27017-61 fit: 1961 to 1965 AH model.

Click on parts to view image. ........

Harley Topper Reed Valve and Air Intake 26906-59 26905-59 7021 26902-59 7634 2673 27070-59 27070-59 26900-59 29035-61 Harley Topper manifold 9991A Small air hose clamp 10022 Large air hose clamp 29185-59 Small air hose 29185-61 Large air hose Harley Topper AH air intake manifold 27017-61

AIR FILTER ELEMENT
Number: 29036-60
Note: Replaced by 29035-61

Click Air Filter Element 29036-60 to Enlarge
Topper Air Filter Element 29036-60

 

Fuel Filter 62350-63 ****** Gas cap seal 61114-48

 

 

BACK

 

Did you know a new magneto chamber shield came out on the 1964 H models