Not Starting

VPulse · Derestricted Danger Joined: 22 Oct 2004 Karma :

I recently purcahsed 2 mini bikes. Last night I was setting them both up, and managed to get 1 running, while the other close.

Now, the following day, none of them will start. It was left in the garage on a cool night, about -2 degrees. Also the night when one of them rode was raining lightly. I tried everything, making sure the fuel lock was off, making sure the fuel was right etc. Ive tried for about 2 hours to get the engine going but it wasn't very close, just rumbles from pulling the pull string (only method to start). I suspect it may have something to do with the spark plug from the rain the previous night but I am truthfully unsure.

*also there is a white knob thing located on the engine and is a part of some tube, not sure what this does -tried adjusting it etc.

Any comments/tips would be appreciated. Thanks.

Frost · World Chat Champion Joined: 26 May 2004 Karma :

might be mixture/tickover/choke

sounds like its either flooded or its fouled the plug. weather can have an effect on the running of a bike, but its effects are normally only small and not normally enough to cause 2 bikes to cpmpletly pack up Wink

stryker · Brolly Dolly Joined: 30 Aug 2004 Karma :

Some of those little engines (as found in lawn movers) have to be primed before they will start. Is there a little dome shaped pump/button?
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Now what?

VPulse · Derestricted Danger Joined: 22 Oct 2004 Karma :

i doubt it needs to be primed (no pump or anything / not mentioned in manual *which is very bare) i did move it around to get the stuff into the system.

a few hours ago i brought them both into a mini-bike shop, il find out their analysis in a few days. thanks for replies.

STUNTMAN2000 · Two Stroke Sniffer Joined: 08 Nov 2004 Karma :

Vpulse, I got some of them about 6 months ago I also got the MIDI moto's ...

The Problem is they are Disposable bikes and as such they have no servicable parts on the engine when the engine goes you have to throw them away.
This is the reason I decided not to import them.

The Starting problem is they are both flooded, if you take the plugs out you will see they are both wet.
this is a fault with all of them due to the cheap nasty carbs on them.

You will also notice there is no fuel tap on the Mini moto, and the floats are all set wrong, if you take off the carb and take off the float bowl you can just bend the float a little and this will help the problem a little.

Best this you can do it make yourself a fuel tap, then when you have finished with the bikes shut the fuel off and run the engine till it runs out of fuel. this way the bikes will start first pull next time you want to use them.

The easy tap is go to your local pet shop and buy a little green clamp that people use for clamping the airline on tropical fishtanks.
this works great and costs about 15p

Good luck mate Thumbs Up