2010 La Vita 150cc-EFI Scooter By mcnpam (Read 4,561 times)

[mcnpam]

I have a 150cc-EFI La Vita which was discontinued in 2011. I have a problem with it not starting. I have done the usual troubleshooting. Changed the battery, spark plug (gapped@ 0.78), solenoid switch and drains the gas tank (put in new high octane gas).

I am getting spark from the plug and the starter is turning. But it won't start. I don't know much about the ECU which controls the DC 4 pin CDI unit. And I don't have a service repair manual and can't get one because it's not made anymore. However, I have ordered a new CDI and waiting for it to arrive. But if I have spark, that is probably not the problem.

Can anyone make some suggestions?

[mcnpam]

I forgot to mention that this is not a EFI Kit. The Scooter was manufactured with a FACTORY INSTALLED EFI system. I should also mention that it was manufactured in China.

[crwford]

I sounds like you have a fuel issue can you spray some into intake while cranking like starting fluid?

[cyborg]

I would think it's a fuel delivery problem,,,check the fuses,,,the pump fuse is probably blown

[cyborg]

As a side note 78 thou is huge for spark plug gap ,,,set it 30-32

[mcnpam]

I double checked the owners manual and the recommended gap is 0.8

[mcnpam]

Ok I will check all the fuses and I will try putting starter fluid in the crank.

[mcnpam]

What about the ECU? You don't think that could be an issue?

[mcnpam]

This is the 2010 La Vita 150cc-EFI

This is the ECU which controls the CDI and 
fuel combustion

This is the fuel pump. I don't see a fuse anywhere. 

 Some type of diagram on the Vacuum line

 I don't know what this is. It's in the battery
compartment. Must be part of the ECU/CDI system. 

Another component that I don't know.
Also must be part of the ECU/CDI system

 This is also next to the DC 4 pin CDI unit in
the battery compartment. Don't know what it is. 

 This is the only fuse I found. It's not a fuel pump fuse

[crwford]

Do one thing at a time get some stater fluid crank engine spray into were you took off the air filter and see if it will fire.

[mcnpam]

I had to go pick up some starter fluid, so I picked up some 10 amp fuses, too.
I have changed the fuse. It wasn't bad anyway. However, the starter fluid makes it crank a little while, but it quickly pewters out and dies.

[mcnpam]

So what should I try next.

[cyborg]

Just as I suspected it's a fuel delivery problem ,,, there's either a blow fuse or power Eire is broken internally and you can't see it or the pump is bad,,, I still think it's a fuse

[cyborg]

Got a voltage tester?,,,, pull the plug that goes to the pump and check the connectors,,, I think you'll find no " hot" wire,,, if you do either the ground to the pump is bad or the pump itself

[mcnpam]

I can get one. But that was my conclusion on the fuel pump being the issue. I have a problem though. Can you recommend a replacement fuel pump. Can't find the OEM fuel pump. Mfgr is Liyang. Part no: c821c8 pcv. Also had LYDS written on the bottom. Not a traditional looking fuel pump though. If this isn't it then there isn't one. Also no fuel filter either.