SOHC.co.uk Forums > CB750
My '71 CB750K1 is quite slow...
flatfour:
I understand that John Wyatt (who owned Rising Sun Restorations) has died recently, so that's probably why the telephone is out of action.
I am not aware (others might know better) of anyone taking on the business.
Arch stanton:
I'm sorry to ask but..
What bikes do you normally ride?
If you usually ride modern bikes, then the k1 will appear to be a slug.
50 yrs ago they was comparably fast. But now vastly over weight & woefully Under powered. US spec bars make things even worse.
Sean.
philward:
Although comparisons to modern bikes, should still breeze past 80 mph so there is an issue we need to sort. Do agree though that if you jump off a relatively new bike to our 70's 'superbikes' will show up their deficiencies. When I step off my 'modern' 1995 ZZR1100' my 750k2 seems very sedate! But enjoyable!
commando1954:
A rolling road would tell you what sort of power it is making all through the rev range.
Nurse Julie:
Let me ride it, I'll soon tell you if it's slow or not 😂😂😂😂😂😂 If I can't blow the engine up whilst flat out, you'll know its just fine 🤣🤣🤣
Joking aside, it can only really be carb or timing set up that's giving you the issue.
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