01-12-14, 12:47 PM
(This post was last modified: 01-12-14, 01:24 PM by Kosmic Kartman.)
I designed, built prototypes, got patents and sold two patents for 100cc go kart applications about thirty plus years ago.
1. Application for operating the throttle by way of hand operated lever mounted on the back of the seat. Those that have had to bump direct drive 100cc karts will know what I'm on about. When you bump these you have to run along, one hand on the steering wheel and the other on the back of the seat holding the rear wheels off the ground and then drop the back turning over the engine by way of the back wheels. When the engine fired the knack was to jump in and hit the go pedal before the engine died or you lost momentum... sometimes easier said than done. Unless you have Kosmic's Easy Start system. Dump the kart hold the lever and the kart bursts into life and travels forward at fast walking pace (jogging) with the motor nicely ticking over. Jump in holding the lever until you can get your foot on the throttle and away you go.
You can't see the hand operated but to the right of the tank you can see the throttle linkage. The lever operated the throttle cable without interfering with the foot pedal and vise versa.
![[Image: MainPickart_zps0e99f52a.jpg]](http://i150.photobucket.com/albums/s85/adthebad/MainPickart_zps0e99f52a.jpg)
![[Image: Easystart1_zps28b60934.jpg]](http://i150.photobucket.com/albums/s85/adthebad/Easystart1_zps28b60934.jpg)
2. Steering wheel mounted choking lever. At maximum revs when racing these karts, at the end of a long straight before backing off the throttle the engine bore needs to be cooled or there is a great potential to seize the engine because the fuel is pre-mixed. When you gas off there is not enough oil running through the engine to lubricate the piston and bore. The knack was to cover the air intake with one hand to flood the engine, a rich intake of oil and petrol would cool the bore. Thing is you have to pretty accurate when doing this. Too much and the engine would flood and stall and spit you into a spin then maybe restart mid corner often with a lock up sideways or lots of power causing bad oversteer... Not what you want as this costs laptime and unsettles the kart. The Kosmic's Easy Choke was fully adjustable to give you just the right amount of richening. On longer straights such as Rye House more choking/cooling was needed and on shorts straight as at Lydd less cooling was needed. The finger operated lever mounted on the back of the steering wheel activated a butterfly valve on the air intake. This meant both hands could be kept on the steering wheel just at corner entry where you need to be precise.
1. Application for operating the throttle by way of hand operated lever mounted on the back of the seat. Those that have had to bump direct drive 100cc karts will know what I'm on about. When you bump these you have to run along, one hand on the steering wheel and the other on the back of the seat holding the rear wheels off the ground and then drop the back turning over the engine by way of the back wheels. When the engine fired the knack was to jump in and hit the go pedal before the engine died or you lost momentum... sometimes easier said than done. Unless you have Kosmic's Easy Start system. Dump the kart hold the lever and the kart bursts into life and travels forward at fast walking pace (jogging) with the motor nicely ticking over. Jump in holding the lever until you can get your foot on the throttle and away you go.
You can't see the hand operated but to the right of the tank you can see the throttle linkage. The lever operated the throttle cable without interfering with the foot pedal and vise versa.
![[Image: MainPickart_zps0e99f52a.jpg]](http://i150.photobucket.com/albums/s85/adthebad/MainPickart_zps0e99f52a.jpg)
![[Image: Easystart1_zps28b60934.jpg]](http://i150.photobucket.com/albums/s85/adthebad/Easystart1_zps28b60934.jpg)
2. Steering wheel mounted choking lever. At maximum revs when racing these karts, at the end of a long straight before backing off the throttle the engine bore needs to be cooled or there is a great potential to seize the engine because the fuel is pre-mixed. When you gas off there is not enough oil running through the engine to lubricate the piston and bore. The knack was to cover the air intake with one hand to flood the engine, a rich intake of oil and petrol would cool the bore. Thing is you have to pretty accurate when doing this. Too much and the engine would flood and stall and spit you into a spin then maybe restart mid corner often with a lock up sideways or lots of power causing bad oversteer... Not what you want as this costs laptime and unsettles the kart. The Kosmic's Easy Choke was fully adjustable to give you just the right amount of richening. On longer straights such as Rye House more choking/cooling was needed and on shorts straight as at Lydd less cooling was needed. The finger operated lever mounted on the back of the steering wheel activated a butterfly valve on the air intake. This meant both hands could be kept on the steering wheel just at corner entry where you need to be precise.
Some say that he eats habanero chilli peppers dipped in oil of capsaicin for extra bite and that his pyjamas are made from Nomex. All we know is, he's called Ad the Bad