TC 50 Husqvarna (2017) overheated in a hair scramble. Help

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4/7/2019 5:12 PM

TC 50 Husqvarna (2017) overheated in a hair scramble. The bike was smoking and shut off, I could get it to restart. Now it’s making this noise when I kick it. Any ideas? Thank you!

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4/7/2019 5:13 PM

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4/7/2019 7:01 PM

Running ATF, per the manual? Is your coolant impeller working?

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4/7/2019 7:33 PM

The nice thing about liquid cooled is they start losing power long before you do any damage.
Sounds like it has compression, so check that anyway. Any less than about 80 or 90 nothing wants to start. Maybe pull the pipe and see what the piston and rings look like.

Maybe the timing got off causing the overheat? Is the stator tight?
Do you have spark? It sounds dead, (That Pop in the video makes me think electrical). A 2 stroke only needs gas, air, spark, and compression to run.

And pull the carb and look and see if the reeds are all still there. I lost a single petal once and the damn thing ran pretty damn good, but wouldn't ever start with the petal gone.

Do the easy stuff first. Plug/spark etc.

Oh, and hair doesn't taste all that great.

Photo



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4/7/2019 7:35 PM

RbR wrote:

Running ATF, per the manual? Is your coolant impeller working?

Thats easy to check too if he can get it fired.

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4/7/2019 8:31 PM
Edited Date/Time: 4/7/2019 8:33 PM

How many hours on that 2017. Ours had a 100 when I tore it all the way down. Had a few teeth missing of the gear that operates the water pump impeller. You could have more missing. If it's not starting now the heat likely took something out. Stator or coil possibly both. Is your kid on the gas or a blipper? These clutches produce a crap ton of heat when they are not fully engaged. The more clicks in on the clutch the harder they need to be ridden.

Either way if that bike is anywhere near the 100 hour mark it's time to tear it down. Bearings, seals, crank bearings, water pump gear and impeller, clutch, etc...

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4/7/2019 8:51 PM

Earlier I was thinking about potential causes for the bike running hot, but the other response touched on the Stator as a reason for the bike not restarting. You said the bike was smoking (hot) prior to quitting. Excessive heat is a common cause of stator failure. It should ohm out at ~ 500 ohms. Anything below 350 wont generate enough current to produce a consistent spark. A weak stator may try to trick you by throwing off an intermittent spark if you rest the plug on the head and kick it. I hope any of this helps.

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4/7/2019 10:25 PM

Wow, so much great posts. Looks like I got some work to do. Ty!!

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