I can;t believe it !... I've got it going.!

pixie · Post by **pixie** » Wed Jun 22, 2011 12:32 pm

Hi everyone,
I've got it going!.. Its coughing and spluttering,the revs are all over the place,keeps cutting out.I think its idle/mixture.I dismantled and cleaned out twin CV carbs again (3 hours!).I have noticed that one of the cylinders is running better than the the other so I dont know if it is the carb or the cylinder itself.I have started it up with the good cylinder plug out and it struggles a bit to start.When running with both plugs one exhaust gets hotter quicker than the other,this is on the side where the fuel from the tank enters the carb. I have left it run and tick over but it is so sensitve when trying to balance the choke/ idle speed. When I turn the throttle it either cuts out or revs inconsistently. Its took me 4 weeks to solve so you can imagine the little smile on me face when it started! thanks for the advice everyone.

Pixie.javascript:insertsmilie('')

Youngster · Post by **Youngster** » Wed Jun 22, 2011 1:30 pm

Well done! its always nice to get something to work isnt it. - you might find that it settles down a bit after its been running for a while, it might rev easier after its warmed up a bit. either that or take the carbs off again and give them another clean. Ive heard of people buying cheap ultrasonic cleaners designed for jewellery and using them to clean carbs out.

SPRIDDLER · Post by **SPRIDDLER** » Wed Jun 22, 2011 2:41 pm

Good news.
Now it's running you can fiddle about getting it sorted.
A cylinder running hot is generally an indication of a weak mixture - air leaks at inlet manifold or zorst pipe, or a fuel blockage for that cylinder.
It could also faulty ignition for that cylinder: H.T. lead shorting out or a faulty plug (even if it's a new one). Try swapping the plugs in the cylinders.
You could also run th'engine in the dark and look at the H.T. lead, coil, etc to see if the spark is escaping against a metal object (cyl head, frame, so forth) before it gets to the plug.
Well done!Edited by - SPRIDDLER on 22 Jun 2011 1:42:48 PM

rex.webb · Post by **rex.webb** » Thu Jun 23, 2011 7:45 am

SURLEY this is the a
125cc AJS a "SINGLE CYLINDER " ?
How is it there are "2" Spark plugs ??
Well Glad to hear its going round under its own power,at least.
RIDE with CARE and LIVE LONG to ENJOY your BIKES.

SPRIDDLER · Post by **SPRIDDLER** » Thu Jun 23, 2011 10:52 am

Pixie wrote:
quote:
....dismantled and cleaned out twin CV carbs...
....one of the cylinders is running better than the the other
....have started it up with the good cylinder plug out...

There's a clue there, Rex. Can you tell what it is yet?
Simples too, if you make the effort to Google for it.........Cuh!

2 cylinder 4-stroke air cooled twin.
124cc
44mm x 40mm.
etc.........
Tech spec'n here:

http://www.ajsmotorcycles.co.uk/new_AJS ... .htmEdited by - SPRIDDLER on 23 Jun 2011 10:04:48 AM

en7jos · Post by **en7jos** » Thu Jun 23, 2011 11:55 am

Congratulations Pixie. You're now the expert on these bikes!

rex.webb · Post by **rex.webb** » Thu Jun 23, 2011 1:25 pm

Well Done that New Owner.
Where will all this end, a triple next or mabe a four.The range is getting bigger by the day.
Must call in my local dealer and take a look.
RIDE with CARE and LIVE LONG to ENJOY your BIKES.

bigwol · Post by **bigwol** » Wed Jul 27, 2011 3:54 am

Just a thought, but have you drained the tank and changed the old petrol for new?
I know nothing about these bikes (and very little about my own i may add) but do the carbs have diaphragms? if these are perished or holed it wont run right.
Still sounds like fuelling trouble to me. Are the choke mechanisms working ok? Another thing to look at. Good luck with it!