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4/27/2021
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SE
Husqvarna Tc50
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Been down the TC50 road and bought a spark arrestor to use for a couple trips to the desert. It definitely lowered the sound a bit and we didn't notice any performance difference.
https://www.fmfracing.com/Product/ProductDetail?CategoryID=62&BikeType=…
A couple things to consider being a past TC50 owner, keep a spare stator in your tool box and a volt / ohms meter. Watch this video and become knowledgeable on how to check if the stator has gone bad and how to swap one out. It's easy to swap them and it's known and common issue with KTM/Husky 50's. Nothing worse than driving 2 hours to the track, only to have the stator go bad after your kids first moto.
https://youtu.be/VjcCdJWyMSk
The kicker return spring is the next problem area. Pax Racing sells a heavy duty kicker spring, and I highly recommend swapping out the stock spring, for the Pax HD spring. Also, Pax is a great source for TC50 parts.
http://www.paxracingstore.com/index.php?route=product/product&path=176_…
Lastly, if your son has small hands, the ProTaper Micro Bars are a great investment!
https://www.protaper.com/product/47/micro-handlebar-kit
Good luck!
I would 2nd to question above. If used then the muffler probably needs repacked. They are crazy loud when the muffler needs repacking. Typically I have to repack every 25-30 hours. You can hear the pitch start to change when its due.
The 21 bikes use the new 1 1/8" bar configuration so the Pro Taper's dont fit. You need to get Nihilio bar mounts for 7/8" bars to put them on. Also the 21 bikes have a different throttle configuration so the cam while it works is not the same as the new cam so there is a little bit of play and slack in the throttle with the pro taper setup on the 21's vs the 20's. I was going to look at also swapping to the Pax Micro Throttle setup to address that.
The Shop
Good to know, I will say they were also a bit of a pain to get the throttle clamped on just right and the ends of the grips rip easily. When my son moved up to a YZ65, I opted to just stick with the stock handlebars.
https://www.g2ergo.com/shop/g2-carb-spacer-kit-ktm/
works just like a governor, limits how far the throttle slide can move. easy to pop one in and scale him down/up as needed. those little bikes make all their power at high rpm, so a 50-75% spacer will really keep any jumpiness down to a minimum , ecsp once you fine tune the clutch stall speed.
no one has mentioned it, but be sure to play with the clicks on that . faster kids = higher rev for takeoff, newer kid = lower rev. take a look at manual and notice the operable range of clicks available.
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