QT50 Bogging - With Video

Garrett Jackson /

Son starting complaining that QT50 was getting hard to start and wouldn't restart after stopping. Wife said she noticed some smoke. I'd never changed crank seals on this one, so I did. First attempt after changing seals, it cranked perfectly, rode for about 5 minutes, it bogged and died. Watch the video. Spark is great, compression is fine, clear fuel line with good flow, spotless carb. What's the deal with this thing?


Bogging QT50

Re: QT50 Bogging - With Video

Garrett Jackson /

Bump. Could use some help.

Re: QT50 Bogging - With Video

Where's jack Rutherford when you need him ?

Re: QT50 Bogging - With Video

Kinda sounds like the CDI isn't being told to go from start to run on a 3 position ignition switch. So maybe bad connection somewhere or tired out CDI

Re: QT50 Bogging - With Video

Garrett Jackson /

I appreciate the thought, but does it matter that it's a 2 position switch? This is a 79 model.

Re: QT50 Bogging - With Video

Doesn't matter unless somebody put the wrong one in at some point.

Re: QT50 Bogging - With Video

Remove the muffler and it try again.

Re: QT50 Bogging - With Video

Jack Rutherford /

recheck your spark. in fact post a vid of your spark test

Re: QT50 Bogging - With Video

Tank not venting?

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