Toublesome Honda CG!

matty_d89 · L Plate Warrior Joined: 28 Apr 2008 Karma :

Hey relativly new to this forum. I have recently bought a 1993 honda cg 125 which seems to have spent more time in the garage than out!

It went back to the garage recenty as would not start at all so different carb, points, spark plug and ht leads were fitted. However when i next started it the idle was extremly high and when coming to a stop from moving the engine would just stall.

Me and some friends believe that it is a possible over fueling problem as will run with throttle but jus cuts outs after that. Is it possible the garage have done it to cover something more serious wrong with it?

Any words of wisdom would be appreciated!

TUG · World Chat Champion Joined: 12 May 2007 Karma :

When you come to a stop it stalls? But it idles extremely high? Thats a tough one.
____________________
Haz ER-5, innit!

virus · World Chat Champion Joined: 16 Aug 2006 Karma :

running lean, they tend to rev a little bit higher if they are lean, and when you let go of the throttle (which drops the needle back into the main jet, restricting fuel flow) it gets too lean to keep running.

be thankful its stalling, if it didn't it would blow a hole in the piston.

do a plug check, see what colour it is.

Cheers
John
____________________
own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

Paddy Blake · World Chat Champion Joined: 29 Jun 2006 Karma :

Is there free play on the throttle.
It may be adjusted wrong and rev to high.
Adjust it at the top of the carb where the cable goes in to the carb.
If the clutch is not adjusted right it will cause drag that might cause it to
stall.
The pilot screw is another thing to sort out.1.1/4 out I think.
You can get the manual on here but I don't have the time to find it for you.

Paddy.

CaNsA · Super Spammer Joined: 02 Jan 2008 Karma :

I know its a stupid simple thing but...

Check that ur not riding with the choke on full,

Start the bike with full choke, no throttle and let it idle for a couple of mins

knock the choke to 1/2 while keep the throttle open slightly

after about a mile or 2 knock the choke of and all should be sweet.

HTH
CaNsA

matty_d89 · L Plate Warrior Joined: 28 Apr 2008 Karma :

hey thanks for the replies.

is a toughie as cg's from the reviews i've heard tend to be indestructable. no not run it on choke at all as weather bin nice.

the plug fouls quite alot as taken it out a few times i.e. dry carbon deposits which points to over rich fuel air mixture, would this lead to the stalling though when not giving it an handful?

virus · World Chat Champion Joined: 16 Aug 2006 Karma :

in that case I can only put it down to the pilot system, check the pilot jet isn't blocked. turn the pilot air screw (on the bottom of the carb, right at the front) in counting turns until it stops, then turn it back out one and three quarters.

Cheers
John
____________________
own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

matty_d89 · L Plate Warrior Joined: 28 Apr 2008 Karma :

ah rite that somthing different altogether! Sad

will get the haynes out i think, the idle is quite erractic at times so could be that. its a 1993 on k plate

palmeale2 · Derestricted Danger Joined: 09 Feb 2008 Karma :

I had a similar problem with my 1996 cg when i first bought it, as it would just cut out all the time. Are you sure its not the choke? It took me and my friend ages to figure out if the choke was on or not. They discuss the choke in this thread here: https://www.bikechatforums.com/viewtopic.php?t=48428

Alex

Cigaro · World Chat Champion Joined: 28 Mar 2007 Karma :

matty_d89 · L Plate Warrior Joined: 28 Apr 2008 Karma :

im hopefully going to take it for a long ride wed or thurs as have exams atm. no choke is not on full its fully down checked a few times. its supposidly had a replacement carb but will check that.

as for the pilot system i'll see if it still playin up after a long ride an take it back to the garage that sold me the thing before i start playing about with it. i may then be liable if i mess it up even more cheers though Smile

i'll let u kno how it goes