CG 125 - Jerky and low on power

[Foxy Stoat seeks Pig]

Noticed something strange last night riding home and i should mention it was hammering down the bike started to get very juddery at high revs in 2nd and 3rd gear, maybe a bit in 1st aswell. Cant say i noticed this over teh weekend when it was dry. But very noticable last night and today.

Spark plug looks fine, only changed it 500 miles ago. Choke set correctly (although i never actually move it) and no problem starting this morning, although again it was very wet. Only thing i have done it over the weekend was an oil change.

Any ideas? too wet? replace plug? ballsed up the oil change?

Thanks all.

[rennie]

water getting into the electrics somewhere!

quite common!

[Foxy Stoat seeks Pig]

Thanks - So when its dried out all is well? or is it not that simple?

[eastanglianbiker]

spray the ht lead and where it screws into the spark plug cap with wd40 as a starting point

chances are the problem will be where the ht lead screws into plug cap

[Foxy Stoat seeks Pig]

Given it a spray when I got home. BUT when I left work, still juddery maybe not as bad as earlier but noticeable. Rode for a couple of miles pulled over got off and adjusted the choke so its in the pointing down position. No more juddery ride or loss of power. Now I have never even touched the choke before, never needed to, always starts and always run fine. Now all of a sudden I need it in the down position. strange.

[rennie]

down is usually off!

[eastanglianbiker]

maybe someone put it up for fun but as rennie says down is off so see how it runs now if it was up when you were riding it would cough and splutter

[Foxy Stoat seeks Pig]

it seems to have 3 positions, up and middle (level) and down. Always been set to middle, never up as engine just cuts out. just a mystery why now it doesn't like the middle position

[Guest]

Plug is probably sooted up

[eastanglianbiker]

middle is for cold starting in warmer weather once its run for a minute or 2 it should always be pushed down to the bottom you will find it will now run better and get more mpg out of it

[Foxy Stoat seeks Pig]

Plug is probably sooted up

 

It looked fine on Sunday though, although haven't checked today.

[Foxy Stoat seeks Pig]

middle is for cold starting in warmer weather once its run for a minute or 2 it should always be pushed down to the bottom you will find it will now run better and get more mpg out of it

 

Will try that again tomorrow.