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bwader · 04-05-2022, 08:56 PM

I got my gz running! Been some time since I posted on this forum.
To fill in I have since replaced piston, cylinder with chinese parts. New Nasaki Head assembly from alibaba or Aliexpress.
https://m.aliexpress.com/item/327981...mend-recommend
During putting new head cover on the new gn250 assembly I didnt realize the C-clip wasnt in the groove in assembly, so when I torqued down the head cover I cracked a brand new part. So I used my original 2005 gz head cover and rockers.
Using a new gn250 camshaft.
Anyhow, Im happy to get running but seems a lot louder than before or some other issue.
I do read where people say our gz's are loud tapping bikes its normal.
Im thinking I need to readjust valves a little tighter than 0.08mm intake and 0.13mm exhaust. I thought maybe I used wrong units last time I adjusted valves.
Next camchain tensioner and I might need a need new cam chain?
The rockers are worn so maybe I need to swap out older worn rockers with the new rockers since head cover is still good.

04-05-2022, 08:56 PM	#1
bwader Senior Member Join Date: Aug 2013 Location: Franklin VA Posts: 171	Valve noise seems loud to me on my 2005 I got my gz running! Been some time since I posted on this forum. To fill in I have since replaced piston, cylinder with chinese parts. New Nasaki Head assembly from alibaba or Aliexpress. https://m.aliexpress.com/item/327981...mend-recommend During putting new head cover on the new gn250 assembly I didnt realize the C-clip wasnt in the groove in assembly, so when I torqued down the head cover I cracked a brand new part. So I used my original 2005 gz head cover and rockers. Using a new gn250 camshaft. Anyhow, Im happy to get running but seems a lot louder than before or some other issue. I do read where people say our gz's are loud tapping bikes its normal. Im thinking I need to readjust valves a little tighter than 0.08mm intake and 0.13mm exhaust. I thought maybe I used wrong units last time I adjusted valves. Next camchain tensioner and I might need a need new cam chain? The rockers are worn so maybe I need to swap out older worn rockers with the new rockers since head cover is still good. __________________ 2005 GZ 250 10,200 miles Login or Register to Remove Ads Last edited by bwader; 04-05-2022 at 09:04 PM.
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