Battery dilemma By smiffy (Read 436 times)

[smiffy]

Hi guys I posted last week regarding power problem on a baotian 50cc scooter I thought I had found the problem with a split o ring in the inlet manifold but still only getting 8mph, so just bought the Haynes manual and discovered that the battery I replaced that was on the scoot ytx4l-bs (50cca/3ah) should be a ytx5l-bs (80cca/4ah) would this cause the power problem??

[gatekeeper]

No that shouldn't have anything to do with your issue. Might make it harder to start when cold as it doesn't have as much reserve cranking power.

Can you run the RPM's up when it is on the center stand?

You might have a hole or tear in the diaphragm in the top of your carb. If so it will allow vacuum to escape and not lift our slide all of the way up.

Just a thought.

[smiffy]

Cheers I'm doing a compression test tomorrow if that's fine then it could well be carb issue will strip it down to see

[smiffy]

Yep it was a carb issue runs sweet as a nut now.... Just done a full service so hopefully no more problems for a while!! 😄

[gatekeeper]

Good going! Glad you got it sorted out.

[smiffy]

Spoke to soon!! Running fine but got an issue with front headlight it's really dim until you apply the brake then lights up as it should?? Tried running a separate earth wire from both the tail unit and front headlight but not making any difference.... Any other ideas I can try lads??

[bailey]

so, what was the carb problem ?