How To Rebuild the Top End on 2009-2021 KTM, Husqvarna & GasGas 65cc Dirt Bikes

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Whether it's because of excessive noise or just wanting to refresh your engine for the riding season, rebuilding your top end is a great way to get familiar with your bike and prevent more catastrophic failures in the future. Knowing how to do the job correctly will save you tons of time and money compared to taking it to a shop as well. In this video, Charles shows how to rebuild the top end on a KTM 65 SX, but this process will be very similar for Husqvarna TC 65 & GasGas MC 65 dirt bikes.
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Опубликовано:

13 июл 2024

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Комментарии : 39

@michaelmontgomery3267 3 года назад

I used this video to rebuild my first top end and it went great. Bike is running stronger than ever!

@timhagelburg730 11 месяцев назад

Great vid Charles makes life so easy looking after these bikes.

@oubeta 2 года назад

Thanks for making the video. We ordered all of our parts from Rocky Mountain

@carsynbiggs187 Год назад

Just did mine!! Thanks for the help!!!

@rmatvmc Год назад

Awesome! Glad the video helped!

@jacquesnel8384 6 месяцев назад

Really good 👍🏻

@oubeta 2 года назад

So helpful

@adonyscz1271 5 месяцев назад

Thanks super video

@projectbabyjayy3653 3 года назад

Could you list your tools used in video thanks

@jesse469 Год назад

Hi, could you tell me the ring end gap measurements,min-max for husky tc 65 for vertex piston.

@willcountypowersports6338 2 месяца назад

It’s safe to use a ball hone on a nikasil cylinder?

@paulharrison3631 2 года назад

Just sent our son’s 2020 KTM 65 into the local KTM shop for a clutch issue and they identified that it also had a broken power valve that had become so damaged that the cylinder needs replacing. They also said the cylinder and the parts for the top end rebuild are on back order until December 2021 🤷🏻‍♂️. Glad they found the issue but not thrilled that my son is potentially going to miss half the riding season…

@raymondharold5973 2 года назад

Us chrome can fix any problems with your cylinder and it will have a stronger plating w/ better oil retention. Also the water pump impeller is plastic and comes apart it should be inspected regularly (visually or black floating particles in the radiator fluid)

@zb7338 Год назад

My son's 2021 gas gas 85 does not have a clear timing measurement on the fly wheel etc I looked for a manual that shows it with no luck. Can anyone help?

@mustafanajm965 3 месяца назад

Thank u for the video i have question please i have this bike im going to repair the top end but what the different between oem top end and vertex top end please help thank you

@rmatvmc 3 месяца назад

Either one is a good option. I'd just get the new parts installed and call it good! -Charles

@nastybasement6232 Год назад

Hi ! What diameter and grit hone do you use for the SX65 cylinder ? Thank you

@jesse469 Год назад

42mm-45mm

@matthewclark121 29 дней назад

My power valve was broken also.

@Bruceiwish1234 Месяц назад

What’s the black brush made of that you are cleaning the cylinder with. And dimentions please.

@rmatvmc Месяц назад

Flex-Hone Cylinder Ball-Hone: www.rockymountainatvmc.com/parts/flex-hone-cylinder-ball-hone-p

@stevensharkey6909 2 года назад

Hi my gear box oil is turning milky after a few rides I've changed the water pump seals but its still doing it please have you or can you do a video on this issue we have a KTM SX 65 2019

@rmatvmc 2 года назад

www.rockymountainatvmc.com/parts/nihilo-concepts-reusable-inner-clutch-cover-gasket-p?v=15836 Did you replace this gasket too? Coolant flows through it. -Charles

@lbaraby Год назад

It's a pretty common is on these. lts probably not coolant and just water from washing/riding. Change the fluid often. Its cheap and easy maintenance!

@mikejoop9838 2 года назад

How many mm must timing adjusting ktm sx 65 2006? I dont have timing tool

@paulleet4772 8 месяцев назад

1.1mm

@Spacecruizer203 Год назад

i need to know if the 65sx complete motor on ebay is LegiT or not they only asking 520 free ship im like huhhhhh oh yea mountain bike fat tire build No?????

@jasonmassaro7873 15 дней назад

Just purchased a used 65sx with no hour meter. What psi reading should I expect to get for good compression when testing?

@rmatvmc 13 дней назад

Your psi should be around 150psi

@jasonmassaro7873 13 дней назад

Thanks!

@NJOMBIKASOFU 3 месяца назад

hello, i need a link on where to replacement parts

@rmatvmc 3 месяца назад

The first link in the video description will take you to a page with the parts and tools you need to get the job done.

@user-zy2kt6wc6g 3 года назад

Is piston replacement possible without removing the cilinder head? Is there enough space between engine and frame? I know it is not the right method for piston replacement.

@christucker282 Год назад

@ZmannR2 Год назад

It’s super easy to remove it

@jmac636 Год назад

Yes there is enough room. In a pinch I did a top end at the track and was able to remove the cylinder by removing the spark plug and coil to allow enough room.