Doug Eagan buxtools.com/product_catalog.php If you get one don’t store the two pieces together, the c clip doesn’t sit as nicely on the tool if you store them together making it harder.
craigloomis20 The KTM 50 Mini has oil injection but if you have a KTM senior they do not have oil injection. One of the easiest ways to tell if it’s a mini or not is the front tire. If it’s a 10” tire it’s a mini and if it’s a 12” it’s a senior. At least for the newer KTMs.
@@6260NP I change the top end about every 15hrs or so. Just like to have a fresh top end for racing. We are now on to senior ktm or husky bikes and I still swap them out around 15hrs. The ktm 65 I will go longer between top ends.
Standard should be fine, its very easy to take out and measure though. Then It’s ready to install once the part shows up. I have done that a time or two.
@@brandonkee3293 Any size will work as long as it isn't a brand new cylinder with 0 hours. My first top end was a standard AB at 30 hours, the next I used CD at 60 hours.
How many hours did you put on before top end? Upgrading my son now from CRF50 and can’t decide if I should be new or year or 2 old bike. Idea of rebuild hours would help decision! Thanks.
John Saathoff So I replaced the top end every 12-15hrs. It was not needed each time just wanted a fresh top end since we raced a lot. It was probably overboard but live and learn. I got Top Ends for about $35 so it was not a huge hit to the pocket book. As for going with older bike vs new bike it’s a hard choice. If you can find a bike that’s a year old you should be good. All our used bikes we had to do work on them. This Mini was our first New bike and we did not have to worry about anything. I would say stay with in 2 to 3 years of current model. That’s what I am trying to do now that we are into the bigger bikes.
I assume your taking piston size? If so, it’s all based on the ware of the cylinder. You would want to measure it with a caliper or a cylinder sizing tool. There are guild online when you would go from an A to a B. Hope that helps!
From one 50 dad to another thank you brother
Absolutely, it was worth the time to make the video to help anyone else doing this at home to help keep there kid on the track.
Thank you for this video!!
Where to buy that piston clip tool?
Is the circlip size 12mm for the sx50? I'm ordering one of these inserter tools!
Nice video. Where did you get that little c clip tool? I'd love to get one. Those little clips can be a pain
Doug Eagan
buxtools.com/product_catalog.php
If you get one don’t store the two pieces together, the c clip doesn’t sit as nicely on the tool if you store them together making it harder.
So how many hours did you put on the bike before you needed to do this?
does that 50 have oil injection? don't recall seeing in on mine
craigloomis20 The KTM 50 Mini has oil injection but if you have a KTM senior they do not have oil injection. One of the easiest ways to tell if it’s a mini or not is the front tire. If it’s a 10” tire it’s a mini and if it’s a 12” it’s a senior. At least for the newer KTMs.
@@tannermx5508 ahh got it thanks and great vid!
Hey man great video real helpful work thanks for that. Have you replaced water pump and water pump seals etc?
I have done the water pump seals once and replaced the plastic fan many times. It was not to difficult if I recall but have not done that in a while.
@@chrisbaseball17 cheers mate. Did you do this due to an issue of water in clutch oil or just ad a pre cautionary?
@@6260NP I change the top end about every 15hrs or so. Just like to have a fresh top end for racing. We are now on to senior ktm or husky bikes and I still swap them out around 15hrs. The ktm 65 I will go longer between top ends.
Thanks I was meaning why did you change water pump and seals etc was it due to water in oil or just precautionary?
@@6260NP yes it was leaking
Do you think I would be safe to order the standard size piston at 60 hours or should I open it up and measure first?
Standard should be fine, its very easy to take out and measure though. Then It’s ready to install once the part shows up. I have done that a time or two.
Does it matter much if it’s the wrong size? Just don’t want to pull it apart and then have to wait for the part
@@brandonkee3293 Any size will work as long as it isn't a brand new cylinder with 0 hours. My first top end was a standard AB at 30 hours, the next I used CD at 60 hours.
Nice vid!
Thanks
How many hours did you put on before top end? Upgrading my son now from CRF50 and can’t decide if I should be new or year or 2 old bike. Idea of rebuild hours would help decision! Thanks.
John Saathoff So I replaced the top end every 12-15hrs. It was not needed each time just wanted a fresh top end since we raced a lot. It was probably overboard but live and learn. I got Top Ends for about $35 so it was not a huge hit to the pocket book.
As for going with older bike vs new bike it’s a hard choice. If you can find a bike that’s a year old you should be good. All our used bikes we had to do work on them. This Mini was our first New bike and we did not have to worry about anything. I would say stay with in 2 to 3 years of current model. That’s what I am trying to do now that we are into the bigger bikes.
How did you know if it's a grade A or grade B?
I assume your taking piston size? If so, it’s all based on the ware of the cylinder. You would want to measure it with a caliper or a cylinder sizing tool. There are guild online when you would go from an A to a B. Hope that helps!
Dude put a rag around your rod so you don’t accidentally drop something into the bottom end.. don’t ask me how I know that 😂