bogging out!

[Guest]

Hi, i have recently bought an aprillia tuareg 125 (127 rotax engine) it was fine first few days on it then it started bogging at full revs. I tried cleaning the carb still no luck. Any help?

[cockercas]

Might be teaching you to suck eggs but how are you using the throttle? If your pulling it right round it will bog down. You need to ease the power in.

[Guest]

No its not that, it was fine it still revs ok its at a certain rpm it starts lagging and bogging but anything below its fine. I really don't like 2 strokes haha

[Grumpy Old Git]

Sounds to me like a timing issue.

[Chrissb6]

If its not fuel or air problems "check the spark plugs for colour that will soon tell you the state of the engine" It might just be that you not use to riding a 2 stroke. 2 strokes are re known for having a power band, once the revs drop out of the power band the engine will very quickly bog down, to get the maximum power out of a 2 stroke you've got to keep them spinning in and around the power band.

[Guest]

Ive just put a new plug in, still the same, its fine when you rev it, its when its hitting the power band it bogs i think, its leaking black from the exhaust manifold so i need a new gasket, could this be why?

[Chrissb6]

Ive just put a new plug in, still the same, its fine when you rev it, its when its hitting the power band it bogs i think, its leaking black from the exhaust manifold so i need a new gasket, could this be why?

Quite possibly Mate, any leak in the exhaust system on a 2 stroke motor will hinder it's running and performance.

Edited March 26, 2014 by Chrissb6

[Guest]

It is leaking pretty bad, quite messy really. If its not the gasket any other ideas?

[Chrissb6]

It is leaking pretty bad, quite messy really. If its not the gasket any other ideas?

Go for the gasket, that's clearly a fault, get rid of that one first before you go looking elsewhere.

[Guest]

Ok thanks for you're help, I'll put a post up when ive changed the gasket let you know how its gone