|
Post by theaaman on Nov 29, 2019 11:26:00 GMT
I have a Cb400n that a have just bought recently, the fault was on the bike when I bought it. It's a bit smokey when I start it and continues to smoke when revved,them the left hand cylinder starts popping and misfiring ,then only runs on the right cylinder. Take the plugs out and the left side plug is oiley. Clean it then run the engine and the same thing happens again .checked the compressions about 155 psi warm.carbs have been overhauled. There is a previous thread in the help section regarding this. I have stripped the engine down now and found the fault.No prizes for guessing, Its just a bit of fun. Just wanted to see if there are and clever dicks out there. I will give it 48 hours before I give the answer, but I'm sure someone will get it straight away.
|
|
|
Post by buster on Nov 29, 2019 12:40:54 GMT
broken piston ring?
|
|
|
Post by theaaman on Nov 29, 2019 12:47:44 GMT
Nope
|
|
|
Post by buster on Nov 30, 2019 9:49:06 GMT
guide stem seals?
|
|
|
Post by theaaman on Nov 30, 2019 10:39:56 GMT
Nope. Looks like buster is the only one interested
|
|
|
Post by bojer on Nov 30, 2019 13:50:14 GMT
Perhaps no one want to be known as a "clever dick" ?
Oilway dowel missing ?
|
|
stevegbr
Administrator
ADMIN
BIRMINGHAM
Posts: 10,354
mini-profile background: {"image":"","color":"2b86e7"}
Member is Online
|
Post by stevegbr on Nov 30, 2019 14:17:34 GMT
sticking valves.
|
|
|
Post by davefirestorm on Nov 30, 2019 17:17:26 GMT
Gunged up float bowl
|
|
|
Post by theaaman on Nov 30, 2019 19:55:17 GMT
No one is close yet.here's a clue it's not fuel related and it's anything to do with the head or valve gear
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Nov 30, 2019 20:30:22 GMT
Low tyre pressures?
|
|
|
Post by bojer on Nov 30, 2019 21:00:34 GMT
Piston upside down ? little end gone big ? mouse nest..........
|
|
|
Post by BritPete on Nov 30, 2019 21:08:28 GMT
Australian oil flowing the wrong way
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Nov 30, 2019 21:36:42 GMT
Wrong kind of snow?
Leaves on the line?
|
|
|
Post by theaaman on Nov 30, 2019 22:02:54 GMT
Great answers...bojer is getting warm
|
|
|
Post by bodie on Nov 30, 2019 22:24:40 GMT
Cracked head ?
|
|