j cams in csr

I have a csr (82) and want to upgrade to at least 1000j standard cams. I need some suggestions as this is my first j-motor build. Ihave no cams yet . I also plan to revamp the style maybe a gpz tank and seat if they will fit the frame.I need help. I need gpz info too, the tail,will it fit, will the cams fit,carbsect ps anone know what carbs came on a gpz 900 and are they worth using?

I put cams from an '84 GPZ1100 in my '82 CSR. I did notice a difference in performance.

Just be aware, however, that the J and GPZ cams do not have the tach gear as those models used electronic tachs. So right now, I am tach-less until I can find an electronic solution that I'm happy with.

I am already planning on a new cluster set up but I want to make sure the power difference is worth it.

jcleach wrote:

I am already planning on a new cluster set up but I want to make sure the power difference is worth it.

Well, for me, it was a noticable difference. I had already installed Wiseco 1135/10.25 pistons. I ran them for a while on the CSR cams. Later I picked up the GPz cams and noticed a boost in power in the mid-high RPM range.

I get a slight stumble, however in low RPM range, and I am still working through that. I'm not sure if it is a carb issue or timing. Last week, I re-synched the carbs and adjusted the float levels, and that seemed to make it better, but it hasn't gone away totally. I'm now wondering if, with the hopped up pistons, I need to adjust the ignition timing. Before I installed the pistons, Jeff Saunders told me that I might need to do that.

From what I understand, the GPz cams have a little more lift than J cams. And J cams are a step up from CSR cams. If you don't already have J cams, you might try to find some GPz's.

I dont have any but I am searching for the right deal. I am dealing with an issue right now when I start it the starter whines loudly and turns over randomly, never more than a few times, then goes on whining

skyman, Redline Cycle has electronic tachs that look oem.

NickW900LTD wrote:

skyman, Redline Cycle has electronic tachs that look oem.

Thanks. Yeah, I've seen them. Unfortunately, they look "OEM" for '73-'80 models. They don't look the same as my '82 tach, and won't fit the same bracket. And even MORE unfortunately, they want $199 for them. :blink:

I'm not planning to spend that much.

But thanks for mentioning it.