Scooter is broken? By curiousgeorge (Read 1,642 times)

[curiousgeorge]

Ok I will try that when I get home, where/ what is the canister?

[Moat]

Sept 2, 2012 16:28:35 GMT -6 curiousgeorge said:

Ok I will try that when I get home, where/ what is the canister?

Here's an informative post by Bashan about the EVAP canister -

scooterdoc.proboards.com/index.cgi?board=techtips&action=display&thread=4410

Bob

[rgmarsing]

Your video sounds just like mine did when I was have starting and throttle issues and it drove me crazy for a week. I checked everything. Wires, battery, fuel/air mixture, gas. I pulled the plug and it looked fine. A tan color, maybe running a little lean but ok and a spark. But it looked kind of weak, so I thought what the heck, about time I got rid of this cheap chinese plug anyway. It had been running fine with it. So I bought a new ngk and miraculously everything started running fine again. The old plug was gapped right and had no cracks or other visible damage but just wouldn't give a hot enough spark. Simple, maybe too simple solution for me. Worth trying since I haven't read that you have looked at your plug yet.

RG

[curiousgeorge]

Yup it is an NGO plug and I put in a new one too :/ didn't change anything

[curiousgeorge]

Ok so now, the lights are still acting weird but now if I switch the high beams on to the passing setting the engine struggles for a second and dies :0, I have no possible idea why that happens, and when I switch the turn signals on the engine slows down a bit and the turn signals don't blink like the should, they just stay solid :/

[Moat]

Most likely, you have a bad ground connection somewhere, that was pulled or jarred loose when the bike fell over.

The entire electrical system - including all of the lights and the ignition system - all functions by completing an electrical path to ground (negative), which is all tied back to the battery's negative terminal. If that heavy wire from the negative terminal is either loose/dirty at the battery or anywhere it leads to the scoot's frame and engine, and also where that same battery ground goes into the wiring harness - it could cause the exact problems you describe.

A bad connection like that is like a kink or knot in a garden hose - the sprinkler will be weak, and if you put a second sprinkler on (like turn on the turn signals or high beam) - both sprinklers will get really weak (engine struggles, turn signals don't blink, etc).

So - carefully look over all ground wiring (black or green, I think), starting at the battery posts (are they both tight?) - look for loose ground wire lugs where they bolt to the frame and engine, any loose connectors, or loose pins inside the connectors, etc.

Look especially close at the heavy ground wire that bolts to the engine (somewhere) - both end's lugs should be bolted tight, not bolted to a plastic cover (like the cooling shroud), corrosion-free and clean, the lugs tightly crimped to the wire, etc.

Check the same stuff from the battery's positive red) side, too. Tight post, connectors, fuse, wiring, etc...

Bob

[hunter]

Here's my 2 cents worth. Don't know how hard it hit the dirt or other roadway but Chinese batteries are, well, junk. Most scooter doc experts tell you, change the oil a lot, replace the plug with ngk and look for bad electric connections. My suggestion is try another battery. The metal inside could have suffered damage, can't see that, and the ground stuff may be what broke, hence bad ground in system. Just a thought. Also, a meter on ohms across the battery terminals should peg the needle. If you have any kind of damage inside and you look at needle or read out real close you won't have 100% numbers. Works for external ground wires too. Start at neg.- battery wire with one lead and check a ground wire at farthest point away from battery. Work your way back and each reading should be 100%, if not, start looking for breaks. Check the stuff close to ground zero. Sorry, disconnect pos+ wire at battery also. Good luck.

[Moat]

Yup, Hunter, agreed - a broken connection inside the (cheap Chinese) battery was going to be my next suggestion... but the fact that the starter appears to work fine leads me to think the problem is outside of the battery. We'll see...

BUT - a meter set to Ohms across the battery terminals will indeed peg the needle - and likely smoke the meter!! Should be set to Voltage only, when reading across the + and - terminals!

Bob