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Messages - sportsvan

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1
CB750 / Re: was this my problem all along ???
« on: August 23, 2011, 06:27:38 PM »
thanks for the reply.

yes, that is the next thing on my list. take that pipe off & see if she turns back into  the nightmare that was !

real nightmare to get to that pipe though.

after that will balance the carbs & see how fast i can get !

ps. small world, i used to live in morden before i moved out to england again)  west sussex,

cheers from dave

2
CB750 / was this my problem all along ???
« on: August 21, 2011, 04:55:55 PM »
ever since i got my 750 f1 running i have had nightmare carb problems.
leaks from dodgy float valves, fuel starvation problems & the bike had no power after 1/4-1/3 throttle.
i fitted another set of carbs but had no joy. bought an ultrasonic cleaning tank, stripped carbs down & re-fitted. still useless.
bought another set of carbs & did the same to them  (my 3rd set !)

fitted them yesterday & at the same time i also fitted the rubber pipe from top of airbox to that emmision cannister thingy which hides under the battery box) as it was missing.

fired her up & i have a new bike ! pulls great & smoothly now.

do you reckon it was this missing pipe causing me months of stress all along ?

 ???

3
CB750 / Re: 750 F1 petrol tank problem
« on: July 19, 2011, 10:18:55 PM »
thanks for the replies chaps

1) glad to see you have an A65 SPITFIRE (is it a spitfire??) i have my 1970 royal star 500 which i bought for

4
CB750 / 750 F1 petrol tank problem
« on: July 18, 2011, 09:48:31 PM »
my 78 f1 petrol tap is strange. the outlet for the fuel pipe comes out horizontally (sideways) this means that my fuel pipe is a nightmare to route.
WHY NOT GET THE CORRECT ONE THEN i hear someone say !
well i have 2 others which point downwards (the correct type as one is still on another 750 f1 tank) but the thread on my petrol tank is too small for them.
anyone got a solution ?

apart from that, i still hate honda 4 cylinder carbs! (well, i will until i finally sort mine out.)
ps anyone live in the worthing / horsham area ?

5
CB750 / Re: New bike 750F1
« on: June 14, 2011, 07:45:15 PM »
i'll 2nd that spitfire. i work on gas boilers, lots are fitted in garages & i see many interesting things. recently i saw a mini clubman estate rolling shell re-sprayed & looking great. i told the customer i have one of these & he said it was his sons but he had given up restoring it & it was for sale. i declined.
bikewize i have seen a fsie, bsa m33 & yesterday in worthing i was chatting to the customer about bikes & he said, come & have a look in my garage.  triumph 21 with 1982 tax disc, phillips gadabout moped, matchless g3, 2 x dax 70's & a 1976 cb750 in poor condition which he bought new !   not for sale though.

6
CB750 / Re: 2 questions about f1 carb settings
« on: June 14, 2011, 07:35:20 PM »
 ??? ??? I think i'm losing the plot !!
thanks for not taking the mickey

7
CB750 / 2 questions about f1 carb settings
« on: June 13, 2011, 08:20:37 PM »
having problems with my carbs so i bought a set on ebay, described as all linkages free etc. when they arrived they were seized solid.
luckily my ultrasonic cleaning tank & new chemicals sorted them out. (it's bloody great)

2 questions

1) when i check the float height, is it with the tiny spring inside the needle jet pushed into the needle jet as when my carbs are upside down the weight of the float pushes it down.

2) the haynes manual says carb needles set on 3rd notch. (they have 5 notches so is it 3rd one from the top or 3rd one from the bottom)  or should i just toss a coin !

8
CB750 / Re: headlight problem
« on: May 27, 2011, 12:55:08 PM »
headlight problem sorted. traced to fuse box connection. now i have a spare ignition switch to lose within the depths of my garage !

9
CB750 / Re: FRONT BRAKE MASTER CYLINDER REBUILD
« on: May 27, 2011, 12:53:34 PM »
 :) :)all sorted now. just a bit fiddly. thanks.

10
CB750 / FRONT BRAKE MASTER CYLINDER REBUILD
« on: May 26, 2011, 12:39:21 PM »
ordered a rebuild kit yesterday afternoon from t,internet.
arrived this morning at 09:30 (wow)
took my master cyl off & thought, 20 min job!
how the heck do you get that small circlip out? i've got 4 pairs of circlip pliers but none get anywhere near.  ???
for the time being i used a new pattern one i had in the garage from david silver which only cost about

11
CB750 / Re: headlight problem
« on: May 25, 2011, 10:57:22 PM »
well, i,ve ordered a new ignition switch today to see if that solves the problem.
also a front master cylinder repair kit (i now know where those small spots of what i thought was oil were coming from..

12
New Member Introductions / Re: 750f1 new member west sussex
« on: May 25, 2011, 10:53:42 PM »
count me in, i used to live in sutton & go to box hill whenever i wasn't fixing my BSA (which i still own!)

13
CB750 / headlight problem
« on: May 25, 2011, 12:01:15 PM »
passed mot 2 weeks ago with no probs (everything worked fine) now my headlight (hi & lo) will not work. thing is, when i use the pass (full beam flasher) it does work.
pilot & rear lights work.
sometimes though, the pilot & rear lights wont work unless i turn the ignition switch to parking lights & then back to ignition.
any thoughts out there. bike is 78 f1.

14
New Member Introductions / 750f1 new member west sussex
« on: May 25, 2011, 11:37:59 AM »
just joined the english sohc forum as i am a member of the american one & only found this site yesterday.
i own a 78 f1 which i bought from ebay last year. passed mot 2 weeks ago & now the headlights have packed in.
looking forward to speaking & hopefully meeting  owners in my own country.

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