gk76a "coughing"

[ben2306]

hi guys,
i'm stuck with this problem. my bike when idle, rpm dying. when headlight on, stall. sparks plug all 4 firing. i used wd40 to spray @ each pipe, smoking. i squat beside endcan listen, its as if the throttle is blipping every 2-3 secs, like a bull. fuel smell can be smelt. rpm drop 200+, making it dying.
anybody can tell me whats wrong? 2 days ago it was like that then afternoon, back to normal again. now it comes again. actually this problem has been with my bike for months. every 3months, i changed my plugs thinking it was running rich, plugs spoilt. but just now i tested, nothing wrong...
coils just changed also. needle changed but 2nd hand, few months back.

[dobbslc]

I had the same thing with my bike cutting out when I put the lights on or the cooling fans come on. It was a coil. The volt drop causes this.
Check your's again if they were not new ones.
Dobbs

[ben2306]

its brand new from suzuki. saw the package when mech installed them. & connection to plug cover is correct as i checked when i changed plugs recently...

[dobbslc]

Have you had the carbs checked over, it could be the "o" rings playing up and leaking air or fuel into the engine.

[ben2306]

i'm still waiting for the morgan carbtune. 2weeks & still havent reach me. o-rings are ready, just hoping to fix all up. if o-rings is the problem then i'm relieved.

[ben2306]

yes, the cabtune has arrived!! will try it out this week end. hope i can get through it nice & steady!!
wish me luck!!

[Jaicen]

Certainly sounds like the o-rings are playing up. Good luck, and keep us informed.

[ben2306]

will, of cos. will try take some detail photos but it may not be pro as i'm only a 1st timer..