Please Help Me With My Bike Issue

[topto1]

Hey basically i was riding one day and my sport air filter fell off (probably didn’t fit it properly)

The next they i went somewhere without the air filter as i was lazy to put it back on…
It was raining really badly.

Suddenly i noticed my bike getting sluggish and acting up, slowly losing power, i though it was the petrol, so i toped up more but it wasn’t,

I pulled out the petrol station and suddenly i heard a “BANG” i lost all power, it was working but i lost all power, no acceleration, and smoke was coming out off –
https://www.motorcyclenews.com/upload/218333/images/Piaggio_zip.gif ( that little black circle thing near the exhaust )

So i was going home really slowly with no acceleration then after a little while it just shut down on me whilst it was getting slower and slower.

Now when i try to turn it back on i have to electric start it a couple of times, and keep revving very fast until it comes on,

When i full rev it it just shuts down completely, there is no power at all with the bike at the moment,

If anyone can help i would be grateful!.

Model Bike – Piaggio Zip 4 Stroke

[neil.]

Are you saying you ran the engine with NO air filter? If so, it would have sucked in all manner of crap from the air which would almost certainly have caused nasty damage indeed... That and having no air filter means you're probably running lean (too much air not enough fuel).
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current)

[topto1]

So what will i need to do to fix it? or is this a job for the mechanics?
I wanna fix it up and flog it...

Help appreciated thanks

[That_Hornet]

Agreed, put the filter back in and see if it runs properly.

[topto1]

So what will i need to do to fix it? or is this a job for the mechanics?
I wanna fix it up and flog it...

Help appreciated thanks

[topto1]

Already did put the air filter back on, still the same issue

[Paddy Blake]

Check if there is water in the oil and drain the float bowl.

[alun111]

Same as above. I'd also clean (or preferably replace) the spark plug.
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Summer: '00 Honda CB600F Hornet
Winter: '93 Suzuki GSF 400 Bandit VP Variable Valve
Past Bikes: Lifan LF100-5 Lifan LF125-A Honda C70

[topto1]

Already did clean spark plug and adjust it,

But u think if i drain the float bowl it will work again,
or maybe its the CDI thats bust?

Heres what the problem looks like...

https://www.youtube.com/watch?v=Px66Z6hV8Fc&feature=player_embedded

[ozzy r6]

i would do a compress test on the engine?

[alun111]

Yer I'd definately start with the small simple jobs first. I'd consider taking the carb off an cleaning the whole thing too.
____________________
Summer: '00 Honda CB600F Hornet
Winter: '93 Suzuki GSF 400 Bandit VP Variable Valve
Past Bikes: Lifan LF100-5 Lifan LF125-A Honda C70

[topto1]

Ok will do them then post back thanks

[mad4it028]

when you start it in the video i notic the rear wheel didnt turn
plus you said about the smoke near the fan ide start by checking the belt hgasnt snapped and then look more into the smoke
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always looking to buy bikes crashed ,unfinished projects,none runners pm me
currently riding kawasaki z1000 only bike ive ever loved

[topto1]

No the wheel does spin! and it even start sometimes! but the acceleration has completely gone and when you go full throttle or even 3/4 it just shuts off....

[cb1rocket]

has it been de-restricted? I had the front variatior nut from the cvt gear system come loose on mind and that was giving no power as the pulley was loose!

Also make sure the cdi has been covered with silicone or similar to close the cut. These are cut open for de-restricting purposes and most people don't bother filling hole after cutting.

Bit off topic but thats what I have had