Lagging when taking off By faabiian3 (Read 329 times)

[faabiian3]

So, I am very almost near finishing my quest of tuning my bike until I am happy with it, with much help from this forum I have; changed contra spring, changed clutch springs, sorted battery, changed brake pads, bled them and a few bits more, and I'm about to change the rollers, nothing very challenging but it's sorted most the problems out. However I have one more problem, when stating the bike from a cold engine, the bike is very laggy to start of, it doesn't like accelerating unless the engine is warm, and when it rains the problem is worse. It goes but at around 5mph until I either build up speed gradually or it randomly decides to go, it doesn't like it when I increase throttle either and despite full throttle it would still stay at 5mph unless I do it slowly in which case it works fine. Once I have gone for a short ride and parked up for a bit, it is fine after, as if it's a cold engine thing, any suggestions? Thanks

[twowheeler]

Probably running too lean. Enricher working? Rule of thumb if scoot runs better cold its rich, worse when cold its lean.

[jvino]

Yeah two wheeler. Bam buddy sounds like carb issues.

[Bashan]

Have you set your valves?(ride on Sprocket) Rich

[Alleyoop]

First thing is adjust the valves then adjust the carbs fuel to air mixture:
Alleyoop

scooterdoc.proboards.com/thread/1499/4ts-carb-tuning

[faabiian3]

Thanks guys i'll give it a go