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Messages - Alan4
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« on: October 22, 2016, 11:27:55 PM »
Thanks for all the helpful reply's / suggestions ... yes looking at the prices at http://www.pittedforks.co.uk/ and at a couple of sites for new as you say the price is similar .... Having looked on their web site .....Pittedforks in Luton is 20 ish miles from where I work so its an positive option , I need to give them a call during the week ..... Again thanks for sharing with me your experience, and your suggestions .
2
« on: October 21, 2016, 11:37:07 PM »
The chrome on a set of fork stanchions / pipes I have , is in a very bad state ... the concern for this bike is not what it looks like but what it will do to the fork seals....What is the experience of re chroming stanchions or is it better to buy replacements ..?
Any advice will be appreciated .
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« on: October 10, 2016, 08:54:20 PM »
Took the advice to look at the pilot jet area , so prior to removing the carbs to strip down , I screwed all 4 pilot jet mixture screws in and out a few times , then set them to 2 ¾ turns out rather than the recommended 2 turns …. Having sort of guessed that since issue was worse when the engine was hot more air was needed [ I assume that is how it works] …. having played with them before I was not that hopeful … but wow it has cured it ….. put the mixture screws to 2 ½ and still ok ……… must of just been the settings ? …. …. It works so I will leave alone ….. thanks for all the advice , help, links to manuals + rebuilds ….
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« on: October 10, 2016, 08:27:25 PM »
ref price for cellulose thinners .. try Wilko ... small bottles .. I used 2
5
« on: October 09, 2016, 11:12:07 PM »
I have just put a Boyer system on my 400 4 , decided to buy myself an early xmas present and bought the micro power system [ Kit 00289 it works with CB 400- 750] that comes with new coils , thinking that it would help remove the original coils susceptibility to getting wet and rather than mess about, I would change the whole ignition system . What I did not realise was that the new coils are smaller and the mounting holes don't line up with the originals ... no adaptor plates in the kit .... so had to spend the afternoon making up mounting plates and spacers. Having done it I am pleased with the results .
I can send you photos / dimensions of the mounting plates if it helps .... dont know if they would be the same for a 750 ....
6
« on: October 02, 2016, 09:51:02 PM »
Thanks for all the welcome's , reply's and advice. Spend yesterday going back to basics again , removed the Cam cover hoping that I had done something stupid and had it out of alignment but it looked ok ....so I moved it one link either way and that was way out of alignment , so set it back to where I started . Checked the carbs balance was ok , played with the air screws ... could make things worse but no better , reset up the timing etc again .. Result no difference /same problem . With the timing advanced 5 - 10 degrees it becomes better - by late afternoon today had done enough running in miles to start opening it up a bit ... had a silly smile on my face when I got home it certainly goes ok ...just the low revs issue .... noticed that it is worse when the engine is hot ... so thinking carbs [ I will grab any idea at the moment ] ... unfortunately I had not done anything to them as part of the engine strip and they worked ok before .... I have another set of carbs may try them ...
7
« on: September 30, 2016, 09:26:09 PM »
thank you for your suggestion of rechecking the cam set up ... yep I agree ...I was sort of coming to the same conclusion that I needed to go back and set it all up again, .... bit of a pain but I think that with a bit of fiddling I may be able to do it with the engine in the bike ........ regarding the advance I have tried it with both the original points etc and an electronic ignition .
Thanks again for the suggestion
8
« on: September 29, 2016, 06:27:06 AM »
Hi from Cambridgeshire – I am new to the sohc forum.
I started riding again a few years ago after a break of 25 ish years , and the number of bikes in the garage has grown to 4 unfortunately not all on the road. Presently there is:
1958 – Francis Barnett Cruiser – mid restoration – and has been in that condition for a few years slowly getting there.
1967 BSA Barracuda – on the road
1976 2x Honda 400 Four’s ………
One now fully restored and on the road after a total rebuild .
The other one was the donor bike for the rebuild [ since there was a lot of parts missing] ,which I am now collecting replacement parts for a rebuild .
So apologies having said hello I now would like to ask for some help …………
As part of the rebuild, I rebuilt the engine in 2 stages:
1 replaced the missing parts, carbs –sump oil pick up etc etc , had the engine running did a couple of hundred miles but the engine was rattley and the cam chain adjuster was not working …. But the engine ran ok …..
2 … so out came the engine total strip down to allow the fitting of new cam chain , [at some time the chain had been allowed to be slack and had riveted the pivot point on the adjuster- apparently a well-known 400 four problem] new rings, Seals , gaskets etc. Adjusted the clearances and set up the timing static and with a strobe. Balanced the carbs, then keeping the revs down started to run in the engine.
………..But ………..
Below 2000rpm if you open the throttle the engine has no power and dies back for a couple of seconds then will pick up ….. is ok above 2000 rpm …. Really frustrating trying to pull away at a junction.
Checked all around the carbs for air leaks etc ….. rechecked the timing …. checked I was using the right marks Even checked that TDC is TDC all ok… then advanced the timing approx. 5 to 10 degrees and the bike runs 95% better ………. What Have I done wrong?? I was very careful about setting up the cam chain alignments / timing but maybe its wrong???
Anyone seen this before?
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