2022 TC50 Top End

[xrocket21]

We have a 2022 Husqvarna TC50 with 99 hours on it, so its time for a top end. Can any of you request a good top end kit? No catastrophic failure so I don't think I need a cylinder. I believe I need to go one size up? Piston, wrist pin, bearing, and gaskets? OEM? Thanks!

@typeone

[xrocket21]

Weisco Piston

https://www.motosport.com/wiseco-2stroke-piston?variant[WCO000P]=WCO000P-X001-Y301

and gasket set

https://www.motosport.com/wiseco-gas...op-end?variant[WCO001C]=WCO001C-X001-Y035

?

[typeone]

i would go with Vertex, which is most likely the OEM maker. at almost 100hrs, i'd go with the CD size (AB was stock) and yes, def get the full kit. AOMC sells a complete Vertex kit for ~$113.

the manual calls for changing the connecting rod, bearing, and crank pin at 80hrs but i would personally just freshen up with a standard top end kit unless you find excessive play once torn down.

EDIT: btw, the Wiseco piston is most likely forged, i would go with cast in a tiny 2T motor. lighter weight, plenty durable.

[xrocket21]

i would go with Vertex, which is most likely the OEM maker. at almost 100hrs, i'd go with the CD size (AB was stock) and yes, def get the full kit. AOMC sells a complete Vertex kit for ~$113.

the manual calls for changing the connecting rod, bearing, and crank pin at 80hrs but i would personally just freshen up with a standard top end kit unless you find excessive play once torn down.

EDIT: btw, the Wiseco piston is most likely forged, i would go with cast in a tiny 2T motor. lighter weight, plenty durable.

Awesomeeeee! Thanks man, Ill order that Vertex right now from AOMC!!!

[typeone]

no problem! had a discount code i was going to give you but they finally killed it. blah.

[typeone]

did you already order ?? if not: QUICK15 at checkout

[xrocket21]

did you already order ?? if not: QUICK15 at checkout

Oh yeah, should be here tomorrow

Thanks though!!!!!!!

[xrocket21]

[Kurlon]

I've got marker caps that are bigger.

[xrocket21]

I've got marker caps that are bigger.

I pictured it being bigger... I can't believe the power it makes from that size piston

[typeone]

omg so cute!

[xrocket21]

[xrocket21]

How many of the three base gaskets do I use???

Need to find ring gap too

No instructions included

[ilikenapalm]

Dunno how helpful this will be for you, but found this: https://fortnine.ca/assets/pdf/verte...TK_Install.pdf

[xrocket21]

https://www.youtube.com/watch?v=aTWewyca6Dg

[xrocket21]

Digging into it more this morning, looks like we need a special tool, so not going to make the race this Saturday.

https://www.ebay.com/itm/334339823801

https://www.youtube.com/watch?v=P5RTJ1i4oSU&t=38s

[typeone]

bah, just figure out what base gasket is stock and match it. you'll need to measure with calipers. sometimes you can measure the old one to get close if you can't find spec. i wouldn't worry about ring gap either, just figure out the right base gasket and bolt it all back up. use some 2T oil on the bearing and cylinder walls as assembly lube.

[typeone]

...btw, if you've never done a top end before, be very careful how you put the ring on, needs to close in the correct spot. also be careful how you set the circlips in, they will go flying never to be seen again OR you'll scratch the shit out of the piston trying to insert. take your time or watch a tutorial.

funny story, i had a circlip go flying while doing a top-end on my CR125. fucking thing shot right at my eye and hooked my eyelid. thought i was gonna be blind. scary. wear safety glasses

[csmutty]

...btw, if you've never done a top end before, be very careful how you put the ring on, needs to close in the correct spot. also be careful how you set the circlips in, they will go flying never to be seen again OR you'll scratch the shit out of the piston trying to insert. take your time or watch a tutorial.

funny story, i had a circlip go flying while doing a top-end on my CR125. fucking thing shot right at my eye and hooked my eyelid. thought i was gonna be blind. scary. wear safety glasses

That's a new one! I also pack around the crank with paper towels so the circlip can't go into the bottom end.

[typeone]

That's a new one! I also pack around the crank with paper towels so the circlip can't go into the bottom end.

yes, forgot to mention stuffing around the crank, must do! ... i also like to wrap cling wrap around the upper part of the bike/frame to prevent any dust/dirt falling while you're working.

[xrocket21]

...btw, if you've never done a top end before, be very careful how you put the ring on, needs to close in the correct spot. also be careful how you set the circlips in, they will go flying never to be seen again OR you'll scratch the shit out of the piston trying to insert. take your time or watch a tutorial.

funny story, i had a circlip go flying while doing a top-end on my CR125. fucking thing shot right at my eye and hooked my eyelid. thought i was gonna be blind. scary. wear safety glasses

I've done multiple top ends on 2 stroke snowmobiles, but never a dirt bike. They all came with just one gasket!!!

[xrocket21]

...btw, if you've never done a top end before, be very careful how you put the ring on, needs to close in the correct spot. also be careful how you set the circlips in, they will go flying never to be seen again OR you'll scratch the shit out of the piston trying to insert. take your time or watch a tutorial.

funny story, i had a circlip go flying while doing a top-end on my CR125. fucking thing shot right at my eye and hooked my eyelid. thought i was gonna be blind. scary. wear safety glasses

well shit, I already ordered the tool. Annoying that they didn't even include the slightest instructions. The three base gaskets really threw me off.

I do have a set of calipers.

[xrocket21]

bah, just figure out what base gasket is stock and match it. you'll need to measure with calipers. sometimes you can measure the old one to get close if you can't find spec. i wouldn't worry about ring gap either, just figure out the right base gasket and bolt it all back up. use some 2T oil on the bearing and cylinder walls as assembly lube.

I have motor assembly lube I always use. I have had it forever and a little goes a long way.

Thanks for all your help, man!!!

[typeone]

well shit, I already ordered the tool. Annoying that they didn't even include the slightest instructions. The three base gaskets really threw me off.

I do have a set of calipers.

yeah, that is common with kits like this to have multiple base gaskets to dial squish. same for no instructions, they just make it easier to buy all base parts in one lot for convenience.

[xrocket21]

cylinder looks good to me







Boy, you don't tighten any of this down very much!!!!