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Messages - Spitfire
Pages: 1 ... 111 112 [113] 114 115
1681
« on: June 23, 2007, 08:01:29 PM »
Hi and welcome, don't worry about dumb questions, they often make the experts scratch their heads and re examine things.
Cheers
Den
1682
« on: June 23, 2007, 07:59:45 PM »
Hi Jack and welcome, where are you based ?
Cheers
Den
1683
« on: June 23, 2007, 07:58:13 PM »
Yes if my memory serves me right the rack was a Craven and I'm pretty sure that it did fold back to enable you to swing the seat over. Can't understand people not liking the F1, I had an early KO which was probably the best bike I have ever owned, then I bought a K2 new in 1972 and was very dissapointed, it was very slow and bland. I sold it a year later and bought a K1 which was much better, it was even better when I fitted a 900cc conversion. I traded it in for the F1 in 1976, the F1 was a vast improvement on the K2 and later K's, but it does not have those four flashy chrome pipes and the classic CB750 looks. Performance wise it was a step back to the K0 and K1 days with better handling. The F2 was even better but with a tendency to be more fragile than the K's and F1's.
Cheers
Den
1684
« on: June 22, 2007, 07:59:16 PM »
OK try again to attach the pic  Post edited by: Spitfire, at: 2007/06/22 20:00
1685
« on: June 22, 2007, 07:56:58 PM »
Just found an old photo of mine when it was fairly new, the exhaust is stock Honda with a Dunstall silencer, which I may re use when I finish the rebuild, makes a nice sound.
Cheers
Den
1686
« on: June 21, 2007, 05:40:44 PM »
Well spotted that man, if you are having problems in the wet try sealing the HT leads where they go in the coil, I used Araldite in the old days but nowadays some doorframe sealant would do a better job. If it works I've posted a photo of the wheel bearing retainer removal type tools I use, very low tech. Cheers Den 
1687
« on: June 21, 2007, 05:22:55 PM »
Nice looking bike you have there, but then again, it looks just like mine !
Cheers
Den
1688
« on: June 21, 2007, 05:19:40 PM »
Hi Mick,
Just checked my F2 and the frame number is CB750G-XXXXXX, the engine number is CB750GE-XXXXXX, my F1 is CB750F-XXXX and CB750-E-XXXX.
Sounds like an F2 frame, especially with the rear disc.
Cheers
Den
1689
« on: May 04, 2007, 07:22:46 PM »
If your wheel is the same as the K's and F1 the alloy retaining ring has been caulked, a punch has been used on the circumference of the ring to stop it coming loose. These should be drilled out otherwise you will ruin the thread, what I did next was to get some flatbar, drilled two holes in the same distance apart as the slots in the ring. I then put two bolts through the holes tightened up two nuts on the other side, files flats into the bolt ends to fit the slots in the retainer ring. Hey presto a genuine Hondaish tool !
Looking at your photo you will have to first remove the wheel spindle, looking at the F2 manual it should just push out.
Cheers
Den
1690
« on: February 21, 2007, 09:46:21 AM »
The way that I remove them is to file the bolt head back to it's normal shape, hammer on an 11mm socket (normal size 12 mm) and it usually comes off. Give the bolt head a few sharp taps with a hammer to jolt the threads first, this usually does the trick.
Cheers
Den
1691
« on: February 07, 2007, 06:29:14 PM »
That sure looks good.
Cheers
Den
1692
« on: January 05, 2007, 11:57:36 AM »
Hi Ray,
Does it drive through the flat spot ? It does sound like carbs to me but I am no expert, check the simple things first:
Make sure that the choke is operating correctly, the K7 has a choke cable rather than the simpler mechanical choke of the earlier carbs.
Give it a quick run with the air filter element removed, just leave the airbox empty.
Check your float bowls for dirt, check the main jets are clean, K7 main jet should be 115, slow 35.
The K7 series was similar to the CB750F2 and had the same later carbs with the accelerator pump.
Buy a good manual, David Silver spares sold me a good one for the CB750F2/K7.
Jonny the jetting for the F1 is 105 main and 40 slow.
Cheers
Den
1693
« on: December 27, 2006, 11:31:50 AM »
Hi Phil,
Just had all my stuff powder coated at Elite Engineering in Liverpool, they did a great job, and did some minor weld repairs to my frame that were revealed after blasting, they are not cheap but they are good, depend where in the UK you are based.
Cheers
Den
1694
« on: December 20, 2006, 05:00:53 PM »
Hi Dave,
It does make a lot of difference where you put the different types of rings, as they are designed to do different jobs (sealing etc)
The top compression ring should be marked (R,T etc) and if you look closely it will be concave at the top (and shiny), the middle oil control ring has a step in it, the step should be at the bottom (piston skirt).
The oil scraper ring comes in three pieces (old ones are one piece), two thin rings and a wavy ring (technical term !), again these two thin rings should have their gaps staggered.
Also ensure that the piston ring grooves are clean and that the rings can move freely, measure the clearance with the ring in place, max 0.18mm for the top ring, 0.165mm for the second ring.
If the breather from the cam cover is blowing then your crankcases are pressured up indicating piston/barrel problems.
Cheers
Den
1695
« on: December 18, 2006, 11:35:34 AM »
CMS have exhaust valves, but at a price, the best bet would be to ring David Silver Spares, they do not list F2 valves but may be able to get them.
Cheers
Den
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