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Messages - Honsa
1
« on: November 30, 2021, 01:24:36 PM »
McCabe-Thiele (Ted), Hi, i've sent you a PM.
2
« on: November 28, 2021, 05:27:33 PM »
Evening all, Could someone tell me what the spring poundage for the rear dampers is please  Graham
3
« on: November 28, 2021, 05:24:28 PM »
Hi Ted, Other models in the SOHC range used a guide for the clutch cable, possibly the 750/4. I have'nt seen a guide for the 400F for sale for quite some time so although others might not be the same shape they would do the job.
Graham
4
« on: October 21, 2021, 07:40:58 PM »
I bought some German Wera 'Kraftform Comfort' Philips drivers, they fit the screws on a 400/4 perfectly, and are easy to source e.g. eBay.
Graham
5
« on: August 05, 2021, 07:56:35 PM »
Thanks Trigger, plenty of 'food for thought' there.
G
6
« on: August 04, 2021, 05:16:30 PM »
Ted Thanks for your input. I serviced the cylinder head but did'nt go lower than that as all looked good and it does'nt use oil, the engine has been split by someone at sometime but i don't know why. Conrods fitted to Brit twins seem to vary in weight from engine to engine but i had'nt thought about Honda rods needing to be matched in a batch of four, but why not, is the question. The engine idles happily at 1200RPM all day long so carb sync might not be 100% but possibly not far off.
K2-K6 Thanks for your input. Once i get a puller i'll pull the rotor and since i have a spare i can easily do a comparative test. Two spark plugs look as though the mixture is rich and two are ok so there maybe some work i can do in that area. Proper diagnosis of combustion by reading the plugs seems to be a black art from what i've read, but if a bit of tweaking changes the vibes for better or worse it's worth having a go. I can't answer your question about static versus in motion vibe levels so again that is something i can do. Would pistons from different batches have different weights, not sure about that one.
Although the 'gloom and doom' devil on my right shoulder thinks the crankshaft has been dropped and bent the fact vibration does disappear briefly at certain revs probably/hopefully suggests it is not the cause of the vibes. I was hoping to avoid a full engine strip but it's hanging in the balance at the mo.
Thanks for your replies guys and for your time and thoughts.
Graham
7
« on: August 03, 2021, 08:34:43 PM »
Hi all, wonder if you could help me out with a problem that has surfaced on a 400/4 that has recently been returned to road worthiness. The bike had lain dismantled in the seller's garage for several years and been bestowed with umpteen faults by the previous owner(s). The bike now ticks over perfectly, responds to wrist action well, and gearbox and clutch action are good, BUT the engine vibrates almost continuously from 1000 to 8000RPM, not like a British vertical twin but certainly more than my other 400/4 which has similar vibration but only around 5000RPM. My suspects are the alternator rotor, clutch basket, and crank shaft. I would welcome thoughts and suggestions from forum members, i'm hoping for an easy fix but things rarely work out that way in my experience. Engine bolts are tight BTW.
Graham
8
« on: May 18, 2020, 02:28:34 PM »
Thanks for your replies guys you've saved me a fair bit of grief and time. It's appreciated.
9
« on: May 17, 2020, 02:05:19 PM »
Andy, the eBay item number is 202986959833 . Hope this helps.
10
« on: May 17, 2020, 01:59:32 PM »
Hi, Found something i can do during 'lockdown' (it's still on in Scotland). I would like to remove the old badly applied paint on the side covers and re-spray. Not sure if ordinary paint stripper will harm the plastic side covers or not. Can someone confirm damage/no damage and recommend a chemical paint stripper.
Thanks.
11
« on: May 16, 2020, 06:13:29 PM »
Thanks for the replies guys, maybe i should see a chiropractor, could be it's just down to too many years of carrying heavy tool boxes and test equipment. Good point TM, need to consider that in future, don't like running the clutch cable round the outside of the tank, just does'nt look right.
12
« on: May 16, 2020, 04:25:43 PM »
Thanks taysidedragon and thanks Nurse Julie. I've bought oil pump 'O' ring sets from your eBay site in the last year/18 months. All good and great service. Cheers.
13
« on: May 16, 2020, 04:21:51 PM »
I've always thought that the 400/4 was made at Hamamatsu but that apparently is not the right answer and Wikipedia is not much help either. Could someone please enlighten me. Looks like this years Xmas book is already chosen if i can't get that right.
14
« on: May 16, 2020, 03:45:11 PM »
There is an aftermarket 400/4 exhaust/muffler on eBay at the mo. It looks to be in good nick.
15
« on: May 16, 2020, 03:42:49 PM »
I've kinda accepted that walnut cracking left hand muscles are an essential part of 400/4 ownership until i spoke to a guy at a bike show who let me try his for size. His 400 was a David Silver refurb and i don't know how they did it but they have given his bike a really light clutch, though not hydraulic actuation light. Any one any ideas what the DS team have done to achieve this? I have read the advice on this and other forums re. smooth/lightish clutch action but none of it has worked for me. Thanks.
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