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Part 2 of Lance Buggy 250 big bore upgrade by MRP

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Uploaded by on May 20, 2008

The Second Part of our install guide we show how to install the piston pin, lube the cylinder big bore kit before installing, making sure to connect the timming chain and cam, and take the Big Bore Lance 250 sample out for a test drive. Make sure to ask for us by name the Big Bore CN 250 cylinder and FORGED piston is available only from your local MRP dealership. MRP does not sell these aftermarket racing parts retail we are wholesale only so visit www.MRP-SPEED.com for your nearest buggy performance retailer. Make sure you trust someone that knows racing, someone that knows MRP.


CN 300 upgrade big bore on LANCE 250 Buggy Install 2 of 2

This CN 250 engine is a Helix Honda clone found in the Kinroad 250 / Runmaster 250 / CN 250 based engines such as the Lance 250 Go Kart. We will show how to remove the old cylinder, install the new one, and then do a road test using the Lance 250 Buggy.

For more information visit www.MRP-SPEED.com you can order this part for your kart from your local dealership.
We are wholesale only.

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Uploader Comments (MartinRacingPerf)

  • Many many many details missing!!! On which side should the piston be mounted? With how much torque do you screw down the cylinder with? What about removing the cooling fluids before taking anything apart? What way do you put the cam shaft back to make sure the engine timing is right?

  • @Valentino319 You are correct a lot of steps are missing. We have over 12,000 items in the warehouse so the videos are not meant as a replacement for paying a licensed mechanic to do the upgrades. These are just for demonstration purposes. We get about 10 emails a day from consumers asking questions how to install things and step by step, these videos are just for demo purposes. Because of editing timing etc.... we don't show everything. Again a licensed mechanic is the best step of all.

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All Comments (7)

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  • its actually a GUDGEON PIN people

  • when you spin the timing chain does it spin freely or not, and does it matter where the pins are like does the opening need to be placed in a certain way.

  • UMMM who ever narrated this should of made shure they knew what they were talking about or let the guy working on it explane what hes doing. Because its called a wrist pin not a piston pin!

  • Nice

  • Does this work on my scooter? If you have a forged piston for my scooter I WANT ONE NOW!

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