How much does it cost to rebuild the bottom end on a dirt bike?
When you are using OEM parts, which includes all new bearings throughout the engine, a cylinder head, new valvetrain, new crank, new piston, new cam chain and tensioner, and a freshly honed cylinder, the cost comes to $1300 to $1500.
Is it hard to rebuild a bottom end on a dirtbike?
With a few tools and a little knowledge, a 2-stroke top end rebuild can be done by any rider in a matter of hours. Bottom end rebuilds will take a lot longer, but they can also be done by anybody with a couple of days to spare.
What does a bottom end rebuild consist of?
Replacement components are a major factor to consider, both in terms of cost and engine performance, when diving into a bottom end rebuild. Replacing bearings, seals, gaskets, and refurbishing the crankshaft either by rebuilding or replacing it is essential.
How much does it cost to rebuild the bottom end of an engine?
A typical engine rebuild is between $2,500 and $4,000 in parts and labor costs. This type of engine repair might include simply replacing bearings and seals, and obviously taking the engine out and re-installing it.
How do I know if my 2-stroke needs bottom end?
The bottom end of a dirt bike engine needs to be rebuilt when the rider has reached 80 hours of riding use or when they can’t get to the level of power they were before. Inspecting the spacing between the connecting rod, the crank shells, and crank webs will let the rider know when it’s time to replace those parts.
How do I know if my 2 stroke needs bottom end?
Why do 2 strokes need rebuilt?
A damaged cylinder may need reconditioning or replating. The same goes for when you find your intake boot and airbox was not sealed properly. Anytime you find leaks, you’ll want to tear down and inspect for damage. Two-strokes are great and they can tell you when they need to be refreshed based on performance!
How long does a yz250 bottom end last?
The last bottom end lasted 360 hours with the clutch at 400 hours.
How was the bottom end rebuilt on your KX250?
The bottom end was rebuilt using a Pro X rod kit and a Hot Rods crank bearing and seal kit. All labor was performed in-house, so there was no additional waiting required. Our KX250 clutch was not in the best shape, so it was also replaced with a kit that L.A. Sleeve has designed to be a direct OEM replacement.
What years does the kx125/kx250 cover?
Step by step How-To video tutorial on top end replacement for the KX125/KX250 models. Covers all years 1994-2007. Have a question along the way? Email support is included. Unlimited lifetime views on any device. Video streams instantly after purchase.
What is a KX250 clutch kit?
Our KX250 clutch was not in the best shape, so it was also replaced with a kit that L.A. Sleeve has designed to be a direct OEM replacement. Each kit includes an inner hub, pressure plate, clutch plates and clutch springs.
What happened to the 2004 Kawasaki KX250?
We found a 2004 Kawasaki KX250 two-stroke that had seen better days and was literally on its way to the junkyard. After a lengthy conversation, we gave the very large and smelly man our lunch money, quickly loaded the machine into the truck and drove away before he could change his mind. So begins the tale of the “Green Goblin.”