Date: 08-08-20  Time: 13:07 PM

Author Topic: up and running  (Read 469 times)

ogri48

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up and running
« on: 10 June 2020, 03:52:58 PM »
Getting to grips with it all okely dokely. stripped the Honda 750 carbs down. Got meself a  bike ramp in the end btw, dont half make things easier...Parts cleaned up lovely and blown dry

ogri48

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Re: up and running
« Reply #1 on: 10 June 2020, 03:57:14 PM »
checked float heights both manually (carb at sixty degrees with tab just touching valve and then float height of 25mm set) and visually with clear tube before assembly. Do they look better or foccing what :)

ogri48

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Re: up and running
« Reply #2 on: 10 June 2020, 04:00:29 PM »
carbs back on and balanced. Bike hadnt run for eight years and now purrs like a kitten :thumbup

ogri48

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Re: up and running
« Reply #3 on: 10 June 2020, 04:06:28 PM »
in the van and back to one very happy owner and pick up the next one. Im really looking forward to getting the 400 going again. I last rode this bike several years ago, and it was just like the ex owners all said...a mechanical little marvel, much nicer to ride than the 750.. Then the local bike shop fucked about with  the carbs (just before they went bust)and it hasnt run since. apparently he didnt even take them off so whatever he did wrong cant be too drastic. theres some gt380 carbs in the box to clean too
« Last Edit: 10 June 2020, 04:07:55 PM by ogri48 »

ogri48

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Re: up and running
« Reply #4 on: 10 June 2020, 04:13:51 PM »
well, the drain screws in the float bowls were facing the wrong way, and the o rings around the main jets and float valve bodies were all focced. So, he'd dropped the float bowls in situ, then forced the new jets etc in blind with no o ring grease, guillotining the outer edge off so bady it looks like it has two o rings in some cases. The carb kits he got were cheapies, so Im going to get new o rings and refit the original Keihin stuff...bike only has 11,000 on it so they should be fine

ogri48

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Re: up and running
« Reply #5 on: 10 June 2020, 05:17:48 PM »
btw im thinking of going on 'dragons den' with the 'speshul tool' i've invented, developed after years and years of R and D, to 'gently and carefully' ease a four bank back into the stubs... :) :lol ;)
I pulled me bloody back struggling to get me fazer thou ones in the last time I had em out, bugger that... ;)
« Last Edit: 10 June 2020, 05:19:13 PM by ogri48 »

unfazed

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Re: up and running
« Reply #6 on: 10 June 2020, 06:07:34 PM »
Ogri, do you not use WD40 on the inlet manifolds and carb mouths to push the carbs back on. It has always worked for me, bottom in a little bit and then tilt top in then push them on. since WD40 is inflammable it will burn off when bike is started and helps seal the joints.
Are you happy with the Davidas?

VNA - BMW Wank

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Re: up and running
« Reply #7 on: 10 June 2020, 06:14:16 PM »
Nice work dude :thumbup

ogri48

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Re: up and running
« Reply #8 on: 10 June 2020, 07:39:20 PM »
Cheers VNA :)
unfazed the davidas are the mutts right enough mate, ive always struggled with carb balancers, but these make it laughably easy. theres a second hand set on the  bay now, ive put a bid in coz if they go cheap enough ill have em as spares.

mtread

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Re: up and running
« Reply #9 on: 10 June 2020, 11:34:15 PM »
Brilliant.
I used to have a 400/4. As you say, wonderful little engines. Run like a sewing machine.
Another bike I regret selling, 41 years ago  :(

ogri48

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Re: up and running
« Reply #10 on: 11 June 2020, 09:28:15 AM »
i envy you. I couldnt believe how sweet the the thing ran. Back in the day I wanted a RD400, but this little honda is worlds apart, feels almost hand built. Taking the carbs off was a different ballgame entirely to the 750, so much thought has gone into every part of its design and build. It deserves its iconic status and then some

agricola

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Re: up and running
« Reply #11 on: 11 June 2020, 03:00:55 PM »
Where did you get the magnetic toolboard from? :lol

mtread

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Re: up and running
« Reply #12 on: 11 June 2020, 07:42:36 PM »
Quote
i envy you. I couldnt believe how sweet the the thing ran. Back in the day I wanted a RD400, but this little honda is worlds apart, feels almost hand built. Taking the carbs off was a different ballgame entirely to the 750, so much thought has gone into every part of its design and build. It deserves its iconic status and then some
RGH 449P where are you now?  :(

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Re: up and running
« Reply #13 on: 11 June 2020, 08:18:23 PM »
Quote
RGH 449P where are you now? 
Tax due 1-10-81  That doesn't look too promising.



mtread

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Re: up and running
« Reply #14 on: 11 June 2020, 09:21:53 PM »
Bought it new in 76 and sold it in 79. I wanted a bigger bike and px'd it towards a Suzuki GS750.
Looks like it had a short life. The parts are probably spread over dozens of bikes now.

ogri48

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Re: up and running
« Reply #15 on: 08 July 2020, 10:51:35 AM »
one of the few classics id actually like, that 400.
though the 750 turnd out ok
https://youtu.be/AYrIAMW52Nc

ogri48

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Re: up and running
« Reply #16 on: 08 July 2020, 10:53:09 AM »
the 400 ws sweeter. gonna tighten the tappets up once hes done a few miles onnit
https://youtu.be/kFkAqYp2ltE

ogri48

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Re: up and running
« Reply #17 on: 08 July 2020, 10:56:13 AM »
even the rusty stinkwheels has a bit of a vibe to it. it hadnt run for bloody years, im amazed the crank seals are ok
https://youtu.be/aXDk-EPPMz0

ogri48

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Re: up and running
« Reply #18 on: 08 July 2020, 11:05:23 AM »
this rjust turned up so hoping to get on the 250 late

Dynspud

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Re: up and running
« Reply #19 on: 10 July 2020, 12:59:32 PM »
All looking & sounding great mate  :thumbup
You must be a real expert on getting carbs in & out by now buddy  :rollin
Take a deep breath, coz it all starts now, when you pull the foccin' pin

ogri48

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Re: up and running
« Reply #20 on: 10 July 2020, 06:55:11 PM »
steady on dave, we both know better than that mate ;) :lol