Cutting out and now wont restart By griffo (Read 636 times)

[griffo]

Managed to get our Jonway qt50 got it running last night and been out on it today. Went to go back out about 2 hours later but wouldnt turn over and battery flat. Recharged the battery eventually started but cut out again. No it wont start even after heating the spark plug. Checked the fuel filter and reconected the pipe but no joy.. any ideas thanks.. put the battery back on charge and it fired up after a few goes went out for a spin but cut out after about 3 mins and wouldn't restart so pushed it home back on charge and the optimizer is saying Recovery... when it stopped it was -2 so dont know if that had anything to do with it.Thanks

[Bashan]

Will it kickstart? If so it sounds like the battery is toast. If it will kickstart the ignition is working OK and making spark but the battery won't provide enough juice to electric start it. I'm not sure what the optimizer is but you should check the battery with a multimeter. It should read 12 volts DC after a charge and be able to hold it overnight. If it doesn't it's a bad battery. If you need help with using a multimeter let me know and let me know about the kickstarting. This shouldn't be that difficult of a problem to work through.

[Alleyoop]

Well that is only one of his problems(the battery) unless his CDI is a DC system which would kill his motor if the battery is shot. But if it is NOT a DC CDI then he has problems keeping the motor running. When was the last time you Adjusted your Valves? If it has some miles on it and the valves have not been adjusted it is time. Tight valves will cause the motor to loose compression and make them very hard to start and some will not start unless the are completely COLD.
But as soon as the motor starts to heat up the valves expand and you loose compression and they will only attempt to run at high rpms. As soon as you slow down they may die on you.

So first thing is probably a NEW BATTERY and Adjust the valves. Then if it still acts up dieing then we can attack it from that side of the coin.
Alleyoop

[griffo]

Thanks. It's difficult to start on the kick, when its warm its fine but when cold there's noway it's starts. When you start on the electric start you need to give it a bit of throttle to fire it up. Would love to use it but can't because its unreliable. Scooter shop said to get the carb cleaned and possibly the tank but I don't want to throw money drown the drain.. Thanks

[Bashan]

Mar 12, 2013 2:37:50 GMT -6 griffo said:

Thanks. It's difficult to start on the kick, when its warm its fine but when cold there's noway it's starts.

Yeah, Alley is right, adjust the valves first if the temp makes that much difference. The valves are not that hard to do, it's just getting access to the rockers that can be a little dicey. I'd say use .002" both valves for 50cc GY6s. If you need to clean the carb and fuel line later don't pay some guy, we can show you how.

[griffo]

Think its a fuel problem, started when it was cold the auto choke came on ran fine kept the revs high when stopped and took it back home. Guess what turned off and restarted but no joy. Took the line off the vacuume and when I pressed the start button fuel came out so thats ok. It must be the valves or carb I think. It tries to fire but it wont thats what is draining the battery I think.

[rob63]

From your other thread on this scoot....

When I had it going yesterday it stated while connected to the optimizer and showed 13v I disconnected it and after about 5 mins I turned it off when I tried to turn back on it was dead connected the optimizer back up and showed 11.9 v

Your battery is knackered, there is no magic fix for that other than to buy another battery.

[Bashan]

Jan 5, 2013 12:06:24 GMT -6 griffo said:

Took the spark plug out and it smelt of petrol.

[/u][/quote]
Hey........I don't think you're from around here.......

Mar 12, 2013 10:57:21 GMT -6 rob63 said:

Your battery is knackered.

[/size]
Knackered??!! OK......now I KNOW you're not from around here!

Gotta love the Brits....

I agree, the battery has knickered out and should be Beetled.

The carbonater is bolluxed and should be smelt and framinized.

Remove and check the auto-chukker by hooking it up to a 12v battery (seriously) and see if the plunger comes out 3/16" (that's 400 metric wanker doodles) after about 5 minutes. You guys have clocks like us right?

Pip pop, tally the ho, and good scootering! [/b]

[griffo]

Phoned the garage where I took the scooter, told that the tappets where way out and this was effecting the tick over. I was also told that the battery is the original one (about 2 years old ) so thats why the scooter is difficult to start a new one will cost £35. Is that a reasonable price and would anyone say that would be a possible cause.

[Alleyoop]

Well Griffo, the battery is toast so yes that is needed to be able to use the ELECTRIC start. Otherwise you will be using the KICKSTARTER and they are not for everyday use. They are flimsy to say the least and can break at anytime. So get a new battery Don't know if 35 is a good price in your country or not. But let me say this GET A BATTERY THAT is rated HIGH ON CCA's(COLD CRANKING AMPS), you need that in COLD places. So get a 7amp or 9amp battery that will fit in the battery compartment in your scoot with high CCA's at Least well over 100 CCA's. They have them over 200CC's so if you can find one clost to 200 that would be great for COLD temp area.
Alleyoop

[griffo]

Got the scooter back yesterday.. starts on or around the 3rd attempt mechanic recons it needs a new starter motor. Has anybody any idea if it will still be ok to use like this. Also ran great after picking it up after about 8 miles it cut out at the traffic lights but restarted again after 2 attempts mmm dont know what caused that... done it again when I took it out but started up again anf and not done it since. Put it on charge on my optimate over night and no problem starting this morning so fingers crossed its ok now... just hope it's ok with the starter motor. .

[Bashan]

What did the mechanic do, did you get a new starter motor or not? A starter can pull too much juice when they're in the last stages of failing. That can drain the battery if you crank it a lot. If the starter shorts it will pop the fuse so you should be OK as far as roasting something. How hard is the starting? Just a couple taps of the starter button or does it take forever? Usually it's not the starter but I could tell you a multimeter test if you have one. If that battery is two years old and is the original Chinese piece of crap it's probably toast. Over here a scooter battery, aka powersports battery, is anywhere from $50.00 to $100.00. I just suck it up and pony up at Batteries Plus for $90.00 to $100.00 to get their high end battery when I need one; they're indestructable and last forever.

[griffo]

The mechanic altered the tappets as they where too tight and put a new battery one and changed the spark plug. Didn't change the starter motor. The scooter starts on either the second or third press of you just give the throttle a bit of a twist. My sonused it for school and football and had no problems with it appart from the starting issue.