You’d have to check with Ian Harrison at Viper Racing UK. There are many variations of the engines you can get. 5 and 6 speed. Different carb options and you can supply donor parts (since it uses some cr250 internals) or buy all new.
There is a push/pull cable that connects to shift arm instead of rod and shift lever like on sit up shifter. There are some guys that run 250cc on laydowns though most 250s are on Superkart chassis. That is what I run now.
Awesome. Was that yellow kart that was holding you up a 250 twin? I thought you could only have yellow number plate if you were Div. 1 250? Amazing how well you kept up even in the slower stuff.
hi interesting , what is the motor , sk 250 means nothing to me ,is it a dedicated kart single,ie not a mx engine , like a gas gas ?,never been to nelson ledges looks a great long circuit track ,fast , the lap time doesnt mean much but the avg lap speed would , also how long a track ?i gave up karting in 90 as way to expensive
SK250 is a kart specific single cylinder 250cc. It uses cr250 gear box in billet cases and road race style cylinder and 70hp or so. Similar to GasGas but has carb in front and exhaust out back like ICC/KZ 125cc kart engine. Nelson Ledges is 2 miles. My average speed was around 107mph. Guy who won had an in-line twin and did a 1:02.5 which average of 114mph.
You can tell dedicated kart engine because the exhaust comes out the back of the cylinder. On motorcycle 2 cycle engines you'll see the exhaust come out the front and an expansion chamber wrap around the cylinder.
@@skillege thanks very much that was the answer i was looking for , back in the 80,s we ran reversed barrels on lots of engines , so do those engines compete with mx type motors whats the class structure , i was the first uk 250 single to average over 100mph and that was in 1981, no bodywork or wings ,aircooled yz250but we only made about 50 horse if we were lucky , damn 125,s were nearly as quick
@@alancollard8939 In Europe the have class for twins, these mono250, 450s and than the mx engines. On east side of states the twins and monos run in Superkart at different weights and than 450s and mx run in unlimited.
The black kart has a rotax 257 which seems to make good low end power. Larry Dobbs drives it and is a very good driver. Though this was his first race of season so he said he was still shaking rust off a little. He was faster in some places and I was faster in others so we were pretty evenly matched which made for good fun racing.
I drive a 2006 Anderson Maverick with a 2002 cr250r with few mods to it. The superkarts are broken into two classes. Superkart for the twin cylinder karts and limited production mono cylinders such as GasGas, DEA and Viper SK engines. And unlimited that I race in, for mass production engines that came off bikes such as mine.
Just hopped through the clip checking it out. The kart is a handful on cold tires, "twitchy" at the rear early on in the fast corners too. What really freaked me out is how guys are not pulling their broken/spun karts off to a safer place. This is how Lamar got his foot/ankle/leg broken hitting a disabled kart not far enough off the racing surface. NICE RUN!!! That MX Honda Fly's!!!!!
Could you please tell me why you made the change from f125 to the superkart? I am trying to figure out which one would be best for me to get into and I figured since you had both you would be a good resource. Thank you for your time.
Kory Anderson I really liked the f125 and had some fun races in it. But class size wasn’t always very good. Some races we only had few karts. I had looked at superkart switch but costs of those were super high at time. But than I crashed my f125 and instead of fixing it decided to make switch to superkart. So choice was kinda made for me. Luckily costs of superkarts had come down and I got good deal. I love the superkart. With f125 you had to custom make every part. With superkart you can buy or make which is nice. Also grid size has been much better. We alway have 10 karts and at Mid Ohio had over 30. Driving position is also really comfortable and easier on back over bumps. So I would say go with superkart.
Kory Anderson Ask to join the North American Superkarts page on Facebook. That’s best place for guys to buy and sell stuff. I know there are few karts for sale on there now.
I race 125 shifters unlimited (WKA) . I have notice that the 250/450 class is dwindling . The UK ,Europe ,Australia , Irish , New Zealand and South African Superkart classes are alive and very popular . Something has to change to get the Superkart series up where it belongs . Maybe a pre race for Imsa . Contemplating on moving up . Daytona Week May , If we are lucky , see about 6 karts arriving . Thanks for sharing this video . More Superkart pilots should be putting there videos out on RU-vid (USA)
matrixi4i At Mid Ohio we had 30 plus 250’s but yes at many events we don’t have the best numbers. Hoping more people come out and race. Pitt has a chance to be large event too
Lance Hiser yeah that sound is very strange. Never happened before and we can’t figure out what was causing it. Checked many things and changed parts and nothing changed it. Guess we’ll see if it still makes that sound at MO.
@@skillege I started racing karts in 1966. Karting is "nothing" like it was in the 60's and 70's. We had like 110 entries in American Reed Lite at the 1969 IKF Road Racing Nationals at IRP. I bought a Yamaha Sportsman Enduro in 2013 to try road racing again at age 58. We had "6" karts in our class. Most of the other classes had 1-3 entries. I think there were only like four races in the WKA series for the whole year. Did one race and sold the kart. Wasn't fun and wasn't worth the cost. Like every other motorsport in America. Money and Greed have ruined karting.
Very Nice! Sounds Good! Good Job Jer!!! I didn't see a push at all, what I see is the steering wheel input of a rack & pinion. The mechanical speed of my steering is very similar, it takes more input but at far less effort. Once you get used to the reaction time & speed your turn-in point will be sooner than what you were used to on a CIK or Enduro. Before you know it you'll be bangin those curbs and tearing it up!!!! Good Luck with it !!!!
Top speed was around 116-118 mph. It was first time in kart so it was tuned safe. I think we could get some more speed out of it for sure with some adjustments.
Looks great track and some good laps. Front washes out on the slow turns though bit more front end grip needed, looks good and stable on fast flowing corners though.
Are you loosing water out of the pressure cap at 2:21, 4:00, 5:39, and 6:57? Topped out in sixth gear is where I'd think the most air possible would be going across the radiator.
