AGS MOTORSPORT

R & M UHLHORN PTY LTD

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225 Clarke Road
Springvale South 3172
VIC AU
Tel 03 9546 5607
Fax 03 9547 8173

This Section consists of a Photo Gallery & description of 

HISTORIC & VINTAGE KART ENGINES 

THESE ENGINES are for DISPLAY ONLY & are not for SALE

BM ATLAS
135 ROTARY VALVE

BM ATLAS ENGINES

BM ATLAS
100cc REED ENGINE

BM ATLAS 15TT , TT ported engine BORE 50.7mm , STROKE 48.64mm

 

COMER MIK 545
100CC REED VALVE

COMER MIK 545 long stroke BORE 47.00mm STROKE 54.20mm , 100mm conrod.

DAP T50 ENGINE
100cc T50 PISTON PORT

The DAP T50 piston port engine was produced to combat the kart engine market being

taken over by the Yamaha KT100S engine . Unfortunately the DAP engine was unable 

to over throw the KT100S engine roller coaster , which would have to be the most successfull

kart engine ever manufactured.

DAP T90-T90R ENGINE
100cc REED ENGINE

The DAP T90 reed engine is the first reed valve DAP manufactured 1978-1979 and released a later version T90R IN 1981 which had larger oil holes for the main bearings and additional clearance on the big end bearing thrust .

The T90 and T90R used the horizontal reed block mounted in the bottom of the cylinder that feeds directly into the crankcase and the transfer ports.

Cylinder head are the same casting but the recess machined in the head to take the top of the liner is larger to accomodate the larger bore.

Bore 50.7mm , Stroke 48.5mm , 100mm conrod.

DAP T72 ENGINE
100cc T72 ROTARY VALVE

The DAP T72 engine is TT ported long stroke engine , BORE 48.00mm , STROKE 54.00mm

 

DAP T77 ENGINE
100cc ROTARY VALVE

DAP T77 TT PORT ROTARY VALVE ENGINE 

This DAP T77 engine has been highly modified in the cylinder ports and passages . The front boost port

has been increased in size and two extra smaller finger ports added. These ports has increased the actual

size of the boost port by a considerable amount . Also there has been two extra smaller ports one each side 

of the exhaust port. The side transfer ports have been increased in size and the crankcase ports have been 

also increased in size to accommodate the cylinder port size increase and the number of ports. These

modifications have taken a lot of time and is an example of the extent the tuners when to in the early days.

     dap t75 crankcase boost mods.jpg     dap t75 cylinder boost mods a.jpg    dap t75 cylinder exhaust port mods a.jpg   dap t75 cylinder exhaust port mods.jpg

DAP T91
REED VALVE ENGINE

DAP T91 REED ENGINE WAS THE SECOND REED ENGINE MANUFACTURED BY THE DAP 

COMPANY , THE FIRST BEING THE T90/T90R ENGINE. THE T90/T90R HAD THE REED VALVE IN CYLINDER APOSSED TO THE T91 HAD THE MORE CONVENTIONAL REED VALVE IN THE CRANKCASE , WHICH THIS METHOD IS STILL USED IN MOST ENGINES TODAY.

KOMET K55
100cc REED VALVE ENGINE

KOMET K55 REED VALVE ENGINE MADE BY IAME

IAME'S FIRST REED ENGINE 

PARILLA TG14
100cc ROTARY ENGINE

THE TG14 IS A ROTARY VALVE ENGINE . 

THIS ENGINE MANUFACTURED AFTER THE FIRST ENGINE [BA13] AND WENT THROUGH TO THE 

LATES 80's AS A SS20 WITH MANEY COSMETIC AND MECHANICAL CHANGES, BUT THE BASIC 

CONCEPT STAYED THE SAME. THE EARLY ENGINE USED THE POINTS IGNITION AND BOWL 

TYPE CARBURETOR. BORE 48.00mm.

PARILLA TT22
100cc ROTARY VALVE

PARILLA TT22 , ROTARY VALVE ENGINE.

IN 1974 THE TT22 WON THE CIK/FIA WORLD CHAMPIONSHIP IN JUNIORS [FELICE ROVELLI.

THE TT22 IS VERY SIMILAR TO THE SS20 AND MANEY PARTS INTERCHANGE .THE

MAIN DIFFERENCE THE THE BOOST PORT IS FEED FROM PASSAGE FROM THE

CRANKCASE AND NOT THROUGH A WINDOW IN THE PISTON AS THE SS20 IS.

 

PCR
REED VALVE ENGINE

This PCR REED was introduced into Australia in 1983 .

The BORE 50.00mm & STROKE 50.00mm , 100cc cap city ,classed as a short stroke engine.The reed block

is positioned across the top of the crankcase & enters the engine at the base of the cylinder where the front

protruding legs of the liner is cut off to allow a better intake flow into the crankcase. As most PCR engine this 

has a 98mm conrod.

ROTAX 1983
100cc ROTARY VALVE

ROTAX ROTARY VALVE ENGINE 1983 . BORE 50.00mm STROKE 50.00mm

This engine was the first 100cc kart engine Rotax manufactured back in 1983

Rotax had been manufacturing larger capacity engines for road race karts . in

1983 they decided to enter the sprint kart world and has been very successful 

ever since.

ROTAX 1989
100cc ROTARY VALVE

ROTAX 1989 ROTARY VALVE ENGINE BORE 50.05mm STROKE 50.00mm

The ROTAX rotary engines from the first kart 100cc rotary in 1983 through to the 1989 engine. The most obvious change was

the shape of the cylinder head & fining . The rest of the engine did not change much. Around the exhaust port /cylinder fins

fins were bridged and supported . The coil was mounted to the side and the crankcase opened up between the fins.

                                        rotax 1889 rotary exh.jpg                                    rotax c case 1988 a.jpg

 

 

 . 

TKM REED VALVE ENGINE
135cc ENGINE

TKM REED VALVE ENGINE IS A VERY STRONG REED ENGINE.

USE'S A CONVENTIONAL STYLE REED BLOCK , 104mm LENGTH CONROD 18mm BIG END PIN WITH 14mm PISTON PIN.

THE CRANKSHAFT COUNTER WEIGHTS ARE EXTENSIVELY MACHINED CHAMFER OF THE INSIDE ON THE CRANK HALVES FOR BETTER INDUCTION PAST THE CRANKSHAFT.

YAMAHA KT100AX
100cc ROTARY VALVE

YAMAHA MOTOR COMPANY DECIDED TO ENTER INTO THE INTERNATIONAL ARENA WITH

THE KT100AX ROTARY VALVE 100CC ENGINE , THE ENGINE DESIGN WAS VERY EUROPEAN

BUT THE ELECTRICS WAS A JAPANESE CDI UNIT WHICH WORKED VERY WELL.

VICTA ROOKIE ENGINE

Victa lawn mower engine was used Between the early 1980's to the late 1980's