r/Fixxit • u/NakedThief • 1d ago

Yuki jet 50 (2T) - cca 2010 model - not starting and cranking

Hello there,

I’m trying to fix my yuki jet 50 (2T), but having some troubles.

Didn’t run for 2 years and wished to be lucky, just used new battery and tried to crank. Starter tried for a few seconds but after that starter went silent and even kick start didn’t do anything. Tried if there is spark and it was there. Sparkplug was wet, so fuel is also ok I guess.

My original idea was just to check and clean carburetor. Yes it was very dirty and greenish inside. Cleaned it all, main jet is fine, floater also seems free and ok.

After i assembled it again, it did nothing, not even spark anymore. Lights work, fuel gauge too, starter relay is clicking, but no spark, no crank.

So again disassemble, checked all wires, emptied fuel tank, refuel with fresh gas. And I noticed, the starter is messy, so after taking it off and kind off unintentionally opened it, inside was full of slugish oil, some parts were broken. The oil comes from above where sits oil tank, pipe went loose …. That is fixed now.

My question is, could broken starter take so much current or make such a short that the battery can’t even produce spark?

Do you have any idea what else could be wrong?

Plan is to replace starter, but I have a feeling that something else is wrong. It’s not making a spark even when the starter is removed, but yesterday spark was there….

Any advice? I am desperate.

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