80cc silver slant z80 will not run HELP PLEASE
- Thread starter kidd778
- Start date
It sounds like you have too much fuel in your air/fuel mix going into the engine. I would start by taking the carburetor off the engine and then opening the float bowl to see if the float and float activated valve are functioning properly. It's possible also that the float is stuck in the carburetor and that just pushing the primer button fixes it too.
Is the choke lever working properly? Sometimes they loosen up and the choke lever does not change the actual choke position.
First off I would never install a Chinese HT on a bike right out of the box. This come from experience after my first engine.
Here are some things to look for.
https://docs.google.com/document/d/1GcesQihc7-mm3hJGf7UPiqOaRXZ8ekUT99QUZq2qXXE/edit
https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit
Here are some things to look for.
https://docs.google.com/document/d/1GcesQihc7-mm3hJGf7UPiqOaRXZ8ekUT99QUZq2qXXE/edit
https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit
I can't say if they are any better. Have bought 6 engines (1 Skyhawk) and really can't tell any difference. They ALL have problems, but I minimized mine with the mods I make. Had 1 coil go out within 3 days, had a blown head gasket, and had a replaced defective head gasket trash a piston/jug. All with the first engine that I installed OUT of the box.
Really, they are ALL a crap shot....Chinese junk.
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Agreed with Alf!!!
Don't feel your chinagirl is any more of a trainwreck than any other!
It may be, but that would only be luck, or bad luck, of the draw.
Basically, they are a discount product, and great value for what they are.
They will require attention.
Some more than others.
Some of the vendors merely re-ship the parcels, and other vendors are value-added, who actually inspect parts, components, and kits they sell. Of course they will need to charge more for their service !
These are simple engines to work on. Enjoy the small tasks that will most likely be required.
Good luck
rc
Don't feel your chinagirl is any more of a trainwreck than any other!
It may be, but that would only be luck, or bad luck, of the draw.
Basically, they are a discount product, and great value for what they are.
They will require attention.
Some more than others.
Some of the vendors merely re-ship the parcels, and other vendors are value-added, who actually inspect parts, components, and kits they sell. Of course they will need to charge more for their service !
These are simple engines to work on. Enjoy the small tasks that will most likely be required.
Good luck
rc
Overall they seem to be pretty good but just like every other HT engine kit, they have their lot of horror stories. I do believe that the skyhawks use crankshaft ball bearings and connecting rod needle bearings. That, in my belief is a good criteria to determine what is a good HT engine. I also think that opinions about engine kit vary quite a bit for the same kits because some people are not willing to maintain and care for their kits whereas some people do.
i have the same motor from bgf.the two probs i experienced was the idle screw was set from factory to high,to fast,fix was to adjust idle screw and second was kill switch, disconnected it, got it running,then figured out proper way to wire it.another motor i have,not bgf, had prob with carb slide hanging up,wot all the time,flooding engine.that one got new carb.good luck. hope this helps.not sure about grubee skyhawk heard they were good motors,ive got older grubee starfire yet to fire,and pk80 from pirate cycles no prob yet with the pk.
I had one that the clutch was not adjusted correctly and when you released the clutch and pedal the bike to start the bike the clutch would slip, no spinning on the engine means no fire to the plug.
I used a drill to spin the crank shaft so I knew the magneto and spark plug were firing.
Finally noticed I did not here the engine chugging while I was pedaling. Smack forehead then tighten the clutch up. Fired right off.
I used a drill to spin the crank shaft so I knew the magneto and spark plug were firing.
Finally noticed I did not here the engine chugging while I was pedaling. Smack forehead then tighten the clutch up. Fired right off.
I have a bgf engine thats almost a year old with no problems whatsoever. I know my engine has crankshaft ball bearings and connecting rod piston wrist needle bearings. problems I have had were idle screw spring wearing out and moisture getting under my magneto cover and frying two ignition coils. Red Permatex solved the moisture issue, and a small section of fuel line held on with a cable tie keeps my idle screw from moving. also had a problem with an air leak in my carb when I first got the engine. carb o-ring solved that. gonna clean my spark plug soon so I can do a proper color test and make sure my fuel mixture is right. I think it is, but I want to be sure. I want this engine to last at least another year.
So what is your problem, you stated "80cc silver slant z80 will not run HELP PLEASE" No spark,no fuel, no compression what? A little more information would sure help.
You might find a answer here...
https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit
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