I’m after some advice on my 400/4 pls.
I have had some top end work done by a local guy I really trust including a rebore, new pistons, rings etc. It’s run in now and on the whole running really well. It pulls well and revs freely. However, it bogs down when pulling away. I have pulled the plugs and to me it looks too rich, generally very black and sooty. End of silencer is sooty as well. I took the air filter out to see if increased air into the carbs would help, but it made no difference.
So having read various threads, I thought I’ll adjust the airscews out a tad to lean it up a bit. Checked them and believe it or not, they are 4 turns out already?! In theory it should be running way too lean?
Nurse Julie, I saw your post on the CB400f site re plugs. What was your thinking behind the D7EA plugs? I’m currently using the D8EA.
Can’t get hold of my pal who did the work, as he lives in Belgium and staying there until things settle down with the virus. Any advice gratefully received.
Cheers. Harold.