Author Topic: CR250 Kart shifter engine????  (Read 10160 times)

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Offline snydas1987

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CR250 Kart shifter engine????
« on: January 18, 2015, 06:35:42 PM »
hey guys,
Was wondering if its legal to run a Honda 2 stroke CR250cc single cylinder racing kart engine in a FXT spec'd mower? This motor is ran in SuperKart class racing karts. It uses a 5 or 6 speed sequential gearbox.
Cheers snyds



Offline George Herrin

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Re: CR250 Kart shifter engine????
« Reply #1 on: January 18, 2015, 09:12:29 PM »
NO Mower engines only!!!
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Offline Rocket Ron

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Re: CR250 Kart shifter engine????
« Reply #2 on: January 18, 2015, 10:53:39 PM »
Hey George, What about Yamaha 400cc ohc from yester year yama grass cutter??
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Offline GRUBDIGGER

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Re: CR250 Kart shifter engine????
« Reply #3 on: January 19, 2015, 05:56:03 AM »
NO. CANT USE ANY OHC'S.
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Offline snydas1987

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Re: CR250 Kart shifter engine????
« Reply #4 on: January 20, 2015, 02:42:54 PM »
Im sure iv read somewhere that in the top class that you can run upto 450cc single or twin cylinder mower or motorbike engines in that class of racing mower. Im yet to find the site again but im thinking it is an australian racing mower class.
Has anyone else ever heard of this? and also i understand that is only for 4 stroke engine anyway.


Offline George Herrin

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Re: CR250 Kart shifter engine????
« Reply #5 on: January 20, 2015, 03:31:17 PM »
YA NEED TO READ THE RULE BOOKS snydas1987 MOTORCYCLE MOTORS OF ANY KIND ARE NOT ALLOWED. NOT STATE SIDE ANYWAYS. NOT THRU ANY SANNCTIONED GROUPS.
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Offline snydas1987

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Re: CR250 Kart shifter engine????
« Reply #6 on: February 03, 2015, 04:15:14 PM »
In australia motorcycle engines are legal upto 450cc and the transmissions are legal too, 5 or 6 speeds. Although it would be better to narrow it down to 3 gears which most people recommend to do even with the lawn mower transmissions like a peerless, etc. Iv heard guys say you choose a gear ratio that will make it so you only need to use 3 of the gears, How would i work out or choose a ratio to do this? as id really like it if it were possible to setup that way.
cheers guys
snyds


Offline rotten ron

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Re: CR250 Kart shifter engine????
« Reply #7 on: February 03, 2015, 04:54:01 PM »
Many years ago I built a 250 cc Rotax engine for a shifter cart,6 speed , water cooled,was clocked  at 163 mph at a track in Ohio

Offline Gui961

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« Reply #8 on: February 03, 2015, 05:02:02 PM »
If your rule allow motorcycle engine. get yourself a nice 450cc from a quad with a starter . honda or yamaha . it will be cheaper in the long run and way more reliable than anything coming from a mower trans or engine .
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Offline birdman_express

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Re: CR250 Kart shifter engine????
« Reply #9 on: February 04, 2015, 09:30:21 PM »
So.......  :lock:
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