750 cams in 1000

[thebrandonbeezy]

Since i have to replace the hg in my 1000g i figured i might as well throw in a set of 750 cams since theyre slightly more aggressive than mine. So, my question is, what should they be degreed too?
Part 2
Im going to have the head apart to replace valve seals as well. So could/should, i have the head decked to slightly increase compression?

[thebrandonbeezy]

Bike already has k&n pods and a v&h 4 to 1

[CrazyCloud]

I THINK you just set them up like they were the 1000 cams, using the marks and placing them as per the manual. I did the reverse of what you're doing (swapped in 1000 cams on my 1978 gs750) and thats what I did.

[GregT]

My favourite timing is 107 inlet/109 exhaust lobe centers.

IMO there's not that much difference between the stock 750 cams and stock 1000 ones to make changing them worthwhile.
Remember you've got to reshim from scratch....
I'd just dial in the existing cams.

[Chuck78]

what he said.

there is a little more lift on the 1000 cams, but a little more duration (4 degrees?) on the 750 cams. so the 750 cams make slightly more high rpm horsepower, and the 1000 cams make slightly more low-mid range torque. the 1000 cams will be slightly more fun on the street unless you ALWAYS dump the clutch at 4000rpm and never go below that, spending most of your time 5500-redline.

107/109 lobe centers will give you a little more low-mid than stock factory target degreeing (around 110 if I recall). 106/108 even more street friendly but taking away from the top end beastley-ness slightly.

[thebrandonbeezy]

Now, let me ask you this.. what about stock cams? What you you degree them to? Ill be doing mostly high speed highway riding. So losing a little bottom end is fine for me

[mmattockx]

Now, let me ask you this.. what about stock cams? What you you degree them to? Ill be doing mostly high speed highway riding. So losing a little bottom end is fine for me

Go with the 107/109 combo.


Mark