Which cams?

[Guest]

Dear All,

I have a 1979 GS 750E which grew with the aide of an 850 block. This all happened nearly 30 years ago, I can't for the life of me remember if I used stock 750 cams or 850. Too many beers have passed under the bridge! Wonderful stuff, who are you again? I've attached a pic of cams which shows 450 stamped on the sprockets. Just what does 450 mean. DSC_0040.jpg I aplogize in advance if i don't reply straight away, the days seem to be shrinking.

Livy

[hjfisk]

Not sure what the 450 is but it has nothing to do with cam grind

[uk gs nut]

On my 750/850 conversion it has 750 inlet and 1000 exhaust cams. I've tried other standard 750 850 1000 cam configurations and there's not much difference, you would need a dyno to tell any improvement.

[Livy]

Thank's for your replies guys. I'll keep digging around and try to find what 450 represents.

[TeamDar]

It is part of the part number for the sprockets. GS750/850 use the same sprockets. GS1000 uses 490 sprockets. The sprockets determine the cam timing. GS750 intake sprocket #12740-45002. GS1000 intake sprocket #12741-49001.

[Livy]

Sir,
You should be knighted. The amount of info on this website is just mind blowing. Thank you so much.
Livy.