(RESOLVED) Biker Newbie needs your help!!

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Ok so i am not a biker as such the bike in question is a peugeot vivacity50 CC!!

Any help on this would be appreciated.

I have had the bike for a month now and apart from going really slow on hill starts (i normally have to take a runner at the big hills to get up them) its been perfect.

So today i took a runner up this very steep hill!!!! and almost nearing the top (its a bit of a tensemoment) all of a sudden i hear this loud POP (not sure if it came from engine or exhaust but it came from the back so i am assuming its the exhaust. And that point the bike lost all power and i had to pull over.

I went on with my business as i was running late and came back to drive the bike home tonight it started perfect and runs beautifully so i thought it was maybe a backfire because of the stress of going up such a steep hill.

But now when i am on even a slight incline at more than 1/2 throttle the bike just loses power for a split second then jumps back to life again.. sometimes it loses power completeley and i have to twist the throttle to get the power back on...

Does any one know what this might be? the only thing i have checked is the fuel level (it has no guage just a light) and there is plenty of gas and 2T oil. Have also checked the lead is securely ontop of the spark plug and it is...

Please help!

MCN · Super Spammer Joined: 22 Jul 2015 Karma :

It's not correct for it to not be able to get up any hill on a public road. It will go slow but it should still make it. Eventually.
Unless you weigh 15+ stone.

Are you sure the choke lever is off (if fitted).

With choke on it is possible it will run on level ground as there is less load to move but if you point it at an incline it may die as there will be no air to burn petrol to provide the horsepowers.

Is it a new beast or 2nd hand? May be worth a visit to the dealer if there is any warranty on it.
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Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

Probably not-probably just a backfire.

Something's up-fuelling or timing.

As has been said, has it got a manual choke? (usually a little lever on the handlebars or near the carburettor that changes the air/ fuel mixture when the engine is cold).

If you're not sure, do you have a friend or know someone who could take a look?

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

Could be water in the fuel-depends where you sprayed it. That would explain a lot.

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

Aha.

You have two choices:

A) Drain the carb of any fuel/ water.

B) Run it like it is until the problem stops.

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

drain the carb (should be a screw at the bottom of it). Squirt carb cleaner in it. Start it.

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

fatjames · World Chat Champion Joined: 09 Jul 2011 Karma :

Search on google for a haynes manual. I know this doesn't sound all that helpful, but it will have a section on the carb and will tell you what tools you need.

However, a half decent socket set, a few spanners and a few screwdrivers will most likely be adequate.

Can you see the carb? If not, start taking some plastic panels off until you can. The drain screw should be easy to find will definitely be at the bottom of the carb.

Here's a generic picture which might be of some use - https://www.scootertherapy.com/spreecarb.jpg

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

Manual here:
https://www.manualslib.com/manual/893807/Peugeot-Vivacity.html

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

ok looked at the manual toooooo technical

Sad

fatjames · World Chat Champion Joined: 09 Jul 2011 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

The bottom screw, that's all you need.

MCN · Super Spammer Joined: 22 Jul 2015 Karma :

The Easy-Learn may be to try it with the book and with help from the forum goorooz.
Or The Hard-Learn will be how much a mechanic charges to chase a fault. Shocked

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Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

The problem could be something worse. But try the easy stuff first.

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

xeningti · Derestricted Danger Joined: 03 Sep 2015 Karma :

Ok so i went and got myself a socket set and had a good look round the bike!!!!!!.....

I got the seat and all the panels off.... i checked all the tubes and wires they all seem fine no cracks and no splits... i also checked what i beleive to be the fuel pump or filter (it looks like a little clear plastic reservoir on the fuel line) and inside was an amber color (also no air pockets or bubbles).... so i imagine thats good?

The Carburetor........ there was no way i could get to it as the two screws were obstructed by many other things that i didnt want touch so i will leave that for now...

AIR INTAKE... so something interesting i found when i took the filter housing on.... who ever had the bike last has cut a bit of foam/sponge the shape of the housing and used that as an air filter....... could this maybe be causing some of the problem?? i asked my friend and he suggest throwing it away...

Any other suggestions?

Papa Lazarou · Nova Slayer Joined: 28 Aug 2015 Karma :

Amber is probably okay but new a fuel filter is clear/ white.

The piece of sponge or whatever is the air filter. Is it dirty?

I'd suggest keep running it to see if the problem sorts itself-which it may not.

Can you afford to take it to a garage? If so, that might be best. It does sound like a fuelling problem, possibly caused by water getting into the fuel.