⟐ Answer edited February 01, 2026 at 12:22 MST

Translation Tagalog - English

Why are the lights dim and disappear when I press the throttle
Lights a& ground

⟐ Commented January 20, 2026 at 21:50 MST

⟐ Answered November 16, 2025 at 15:30 MST

⟐ Commented August 23, 2025 at 6:01 MST

So everything was looking good. I was test-riding it after a short hiatus, and the moped was running fine. Near the end of my ride, I stopped at an intersection to make a left turn. I revved the engine while still stationary in anticipation of the light turning green -- I didn't want to hold up traffic, and the 50cc engine takes a while to get going. I pushed off from standstill, the scooter started moving fine, but soon thereafter started lagging. It absolutely refused to go past 20 MPH even though I'd usually go 27-28 on the same stretch of road. It was consistently going slower afterwards, and I scurried back home as best as I could.

I've revved the engine like this in the past (with the moped stationary), but for shorter durations. This time I'd say I was on full throttle ~5-10 seconds while stationary.

A couple of days later I fired it up, but it ran horribly. I managed to get it moving, but it hit 10-12 MPH on mostly flat land (where 27 MPH was common). It felt as if the engine was providing power for a couple of seconds, then stopped the power delivery for a couple of seconds, and it kept doing this over and over. It was so weak that I had to push it up a hill to get it back to my residence.

I thought -- for just a second -- that I smelled a burning clutch when I was riding it back home after the intersection incident. After I got home, I "smelled" around, but couldn't pick up any burnt clutch scent.

I sincerely hope the clutch isn't the culprit, since it's an expensive fix. Please let me know if you have any ideas as to where I can start troubleshooting (aside from the clutch, of course), as the weather's nice and I'm hoping to get it going this weekend -- fingers crossed!

I swear guys, I'm not crazy. There was a problem with the moped.

This morning I fired it up the usual way, hoping to analyze how it runs. It hit 29 MPH on flat land like nobody's business and I rode it around for a good half hour with no problems. I have no idea what changed in the last couple of weeks -- perhaps it had some time to think about its problems and resolved them.

I have a feeling this won't be the last time this problem pops up. I will most likely be coming back to this post sometime in the future :)

Thanks for all the replies!

⟐ Answered May 23, 2025 at 4:45 MST

⟐ Commented April 14, 2025 at 9:18 MST

⟐ Commented February 23, 2025 at 16:29 MST

⟐ Commented December 28, 2024 at 13:56 MST

⟐ Commented October 17, 2024 at 20:24 MST

⟐ Answered August 27, 2024 at 4:43 MST

⟐ Commented October 30, 2023 at 21:17 MST

⟐ Answered September 09, 2023 at 15:07 MST

⟐ Commented September 08, 2023 at 19:58 MST

⟐ Answered September 08, 2023 at 18:46 MST

⟐ Answered August 20, 2023 at 6:19 MST

HOWEVER the problem now is that the electrical stuff like the turn signal lights and horn etc. aren't working very well. They're just very weak and inconsistent. The speedometer and the tail light aren't working at all. The headlight and brake light work fine but get dim when I put on the turn signal. This was not a problem until after I got it running well. I tried to see if the battery needed charging but the needle on the charger didn't do anything, so I guess it doesn't need to be charged?

Before getting this scooter I was totally new to all this small engine/scooter repair and I have limited experience in electrical maintenance. So any good advice will be helpful. Thanks.

⟐ Commented July 12, 2023 at 21:06 MST

⟐ Commented June 25, 2023 at 6:55 MST

⟐ Answered June 20, 2023 at 12:03 MST

⟐ Answered June 12, 2023 at 20:01 MST

I cleaned the carb, feul tank, reed valves and the feul lines

As soon as i get up to speed it has sudden short losses of power

It doesnt have long losses of power and speed but does it in fast intervals of not even a second

⟐ Commented June 10, 2023 at 13:00 MST