Timing on an 82 csr

Hi I recently got a good deal on an 82 kz750csr and im having trouble finding a manual for this bike the bike is hard to cold start and has h hesitation under hard acceleration runs fine under normal driving conditions i do have a lean condition im thinking its becuse it has open exhust and k&n air filters and carbs havent been jetted i cant seem to find any one who knows a good jet setup for this one i have already tuned thid bike up with a new coil pickup plugs and wires and i checked the valve adjustment and all are within the specs i have not figured out how to check or adjust the timing yet im thinking that may be the place to start before i go to the jets i have compleatly cleaned the carbs thanks for any advise you can give sorry this is so long

I also ran a compression test on the engine i have 95lb in both clynders but im not sure were it needs to be

250400049499

sorry im not sure what that means

No eBay APP ID and/or Cert ID defined in Kunena configurationThis is what he means. If you plan on having that bike for a while it is worth having around and will answer most of your questions.
Tom

Thanks for the link i just bought the manual i would still like any advise anyone can give

buckinrut25 wrote:

Thanks for the link i just bought the manual i would still like any advise anyone can give

Nominal compression for a 750 twin is about 150 psi, service limit is 115 psi. Did you try an oil squirt in and recheck the compression? That will tell you if it is rings.

If you are running "open exhaust" which I assume means no mufflers, it will run terrible. If your post :

k&n air filters

means you are running pods, that will make it run worse. You will need richer jets and probably to move the needles to a richer setting.

My 750 twin came with 45 pilot jets and 125 mains stock. You can still get new pilot jets and I have found 50 pilots run better with my headers.

There are no replacement main jets available that I know of.

buckinrut25 wrote:

I also ran a compression test on the engine i have 95lb in both clynders but im not sure were it needs to be

First torque the head, check valve clearances and retest. If the compression is still that low, the engine needs work. Probably a valve job.

buckinrut25 wrote:

i have not figured out how to check or adjust the timing yet im thinking that may be the place to start before i go to the jets

using a timing light: On mine, the letter "F" must align with the timing mark at idle. At RPM above 3000, the timing mark must align with the two parallel lines.

thanks ill put oil in and recheck the compression in the morning i thought that was a little low were is the best place to get the larger pilot jets and yes i do have pods i do have mufflers but they are flow thru and have almost no resistance i need to redo the exhust but im going to stay pretty open kinda weird when i pulled the plugs they were a light brown though about were id expect them to be what should they look like

Ya might want to take a look @ how I solved the jetting for pods problem. She's been running so well that I still haven't put the 122.5 mains in. BTW both main and pilot jets are still quite available for the BS34's used on the '82 750CSR.
tinyurl.com/dfasyq

Ron

ronjones wrote:

Ya might want to take a look @ how I solved the jetting for pods problem. She's been running so well that I still haven't put the 122.5 mains in. BTW both main and pilot jets are still quite available for the BS34's used on the '82 750CSR.
tinyurl.com/dfasyq

Ron

Lucky they are BS34's. There are no main jets available for th BS38's used on the earlier twins like mine.

You can get jets at Z1 enterprises.