problem

riding to work minding my own business like usuall on my 99 curvy the engine felt good for once then about 10 miles out of my 15 mile journey

the bike suddenly coughed and sputtered but never cut out but it lost 80% of its power it would not rev past 7k and its acceleration is next to nothing like it was in a saftey mode of some sort. but then couple miles down the road the fuel light has come on

so on the way home i'll top up with fuel and see if that changes anything.

then then the investigation will start.

Might be best to check both cylinders are running.
Could be a loose or bad connection to your front plug?
I managed to knock a little wire out of my coil and this caused the front cylinder to not fire.

Eirther that or could be a worn wire somewhere in the loom?

[rictus01]

Indeed sounds like the "running on one" problem, the cause however could be any number of things, apart from that mentioned above, you may have water/cr@p in the tank (given the age of the bike), so check the filler cap overflow pipe isn't blocked/ broken inside the tank.

But more likely to be a rubbed wire somewhere or water under the front plug.

Cheers Mark.

[punyXpress]

You hadn't left the choke on had you ?

Originally Posted by punyXpress

You hadn't left the choke on had you ?

nope choke off unless it still sticking slightly i have a new cable on order to replace the old one,

got both cylinders

i pulled the choke completly out of the carbs it popped and farted continueally but reved how it should at about 1400rpm but then the rev counter started searching so pushed them back in and it settled

i need this bike for work i havent got the time or money for the bike to ****in around

fitted a new choke cable and new spark plugs still problems not resolved yet! i'll post pics when i get a chance but te front is quite black while the rear is black around the side and the top probe bit is white.

also the bike back fires when the choke if on aswell if that helps at all.
just the tank to lookin to then i'm stuck.

is this choke plunge problems which people go on about. Just buy a Pointy.

Originally Posted by thefallenangel

is this choke plunge problems which people go on about. Just buy a Pointy.

nope all cleaned

i nearly brought a pointy but i got conned so no bike and money down!
with all the money i had left from selling my ktm i brought this curvy and my luck lands me a dud!

it is only running on 1 and a bit cylinder i have a poor spark to the front cylinder

i need to repair it quick.

easyist way to see if it is the ht lead or the coil?

and what coils would fit on to the sv as new coils are 83quid!