SOHC.co.uk Forums > CB350/400
CB400/4 ENGINE STRIP, ASSESSMENT AND REBUILD BY JULIE - NOW COMPLETE
THUNDERDOWNUNDER:
Thanks all for our help . Just have to find where those wires go now ha !
Nurse Julie:
Just a quick update on Hettie. I have done over 2k since the engine rebuild and have had no problems at all. Having had a major overhaul with lots of machine work, I ran her in very gently for the first 500 miles, which was completely straight forward and un eventful. After the 500 mile oil change and general check over, I started putting the engine under more load and stress and gradually increasing the revs and speed, she settled down a treat. Another oil and filter change at 1500 miles. I never did bother vac syncing the carbs as she was running well enough after the carb rebuild with just a bench sync.
The only very minor issue I have had was a very slight hesitation when pulling away, so I whipped the plugs out 2 weeks ago, cleaned them and put them back in. After 30 miles hard ride, I checked the plugs again, No 1 showed evidence of running a bit rich, No's 2 and 3, less rich and No 4 spot on. I had all 4 air screws set at 2 turns out and have now adjusted them to No 1, 2 ½ out, No's 2 & 3, 2 3/8 out and No.4 left at 2 turns out. Another hard ride and plug colour is now uniform and a lovely colour.
This bike is absolutely flying. She revs extremely freely up to the red line, goes in to the red when really pushed, pulls like a train, the engine is very crisp and responsive and sounds beautiful. No more hesitation when pulling away since adjusting the air screws. Absolutely perfect all round. Also, after the front fork overhaul, she doesn't bottom out any more either and with a new back tyre fitted a couple of months ago, she handles superbly. I am enjoying every minute of riding her, she is an absolute pleasure and enormous fun.
Bryanj:
I seem to remember that the riders handbook said not to go out of the top of the red band but mention nothing about not going into it!
Ride it and enjoy it Julie.
Nurse Julie:
--- Quote from: Bryanj on July 13, 2019, 03:39:25 PM ---I seem to remember that the riders handbook said not to go out of the top of the red band but mention nothing about not going into it!
Ride it and enjoy it Julie.
--- End quote ---
I have resisted going out of the other side of the red Bryan but, that is only because I couldn't stand the flack from Trig, he has a go at me for even getting anywhere near the red 🙄🙄🙄🙄
K2-K6:
After watching such an interesting thread from beginning it was good to see this bike out and about at Crich bike day. Superb approach and detail for anyone setting out to complete an engine rebuild on a 400, valuable reference to those following.
Good to meet both you, Julie and Graham there, with such enthusiasm for bikes in general and particularly these 4cylinder Honda.
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