I really want to ride this bike, not part it out! - Page 2

alantf · 05-09-2011, 02:39 PM

Just a thought............... When you rebuilt the head, you didn't by any chance get the valve timing 180º out of phase , did you? :??:

Ramblerman · 05-09-2011, 02:57 PM

I had that exact thought over the weekend. I removed the top cover of the engine again so I could see the camshaft & camshaft gear. Everything looked good. The timing mark on the generator case cover lined up with the "T" mark through the plug hole. The camshaft notch was facing the intake side of the engine AND the locating pin in the camshaft gear was at he 1:00 position as the manual says! I took the spark plug out (again) and confirmed that it was really at TDC also.

Daniel

geezer · 05-09-2011, 05:45 PM

you did stager the rings corectly? most engines are 180 degrees apart

Ramblerman · 05-09-2011, 07:26 PM

Yes! I installed the rings on the piston per the diagram in the manual.

BTW, it is great having that service manual available for all here to download. Whoever made that happen needs to be commended! It was an incredible resource when rebuilding the engine and working on the bike in general! :2tup:

-Daniel

geezer · 05-09-2011, 09:30 PM

do a compression check, good thing its gonna be super easy with only one cylinder to work with. sorry im not gonna read through all the others posts. did you check the carb? might not be getting fuel to the engine, tried starter fluid? :??: double check your steps you did something wrong, so your sure timing isnt off 180? sorry dude i know you are getting pounded with the obvious. you verified fuel coming out of the tank?as in pulled the line and put it on prime and watched? a steady flow of fuel? haha ok got the vacuum line installed for the vacuum percock? are abolutely sure your header is on tight and you replaced the exhaust gaskets right? intake maniold is good? all electical connections plugged back in? thats really all there is to it. so back to the carb, you sure its done right? even if you think you did something right go back over it and check again

geezer · 05-09-2011, 09:32 PM

sorry i read your post and feel like a broken record now, but still double check. do that compression check if you spray into the carb and nothing happens, its gotta be spark or compression

Dupo · 05-10-2011, 03:43 AM

Quote:

Originally Posted by Ramblerman

Yes! I installed the rings on the piston per the diagram in the manual.

BTW, it is great having that service manual available for all here to download. Whoever made that happen needs to be commended! It was an incredible resource when rebuilding the engine and working on the bike in general! :2tup:

-Daniel

You're welcome!

Ramblerman · 05-10-2011, 05:01 PM

I agree with "geezer"... it sounds like the problem has to be spark or compression. I have a compression tester, but it only has adapters for the two older American car sizes. I am going to get the correct 12mm fitting (or a whole new tester) and we will see what's up!

Thanks,
Daniel

geezer · 05-10-2011, 08:41 PM

did you install the head gasket with the "up" lettering facing up? just a thought i had while taking a shit

Ramblerman · 05-12-2011, 05:12 PM

It turns out that I have around 10 PSI when I do a compression test! :shocked: Obviously, this is waaaaaay too low. I would have been somewhat happy with ANYTHING over 100 PSI.

I took the cylinder head off of the engine again to check things out. At first everything looked correct. But then, I aimed a flashlight behind the valves and saw that there was a partial sliver of light coming from between the valve and valve seat on every one of the four valves!! I am going to try my hand at valve lapping and see if I can get a good sealing surface to hold in the compression.

Hopefully, by posting this resolution to this problem someone in the future will be able to solve a similar issue they may be having!

Daniel

05-09-2011, 02:39 PM	#11
alantf Senior Member Join Date: Nov 2008 Location: Tenerife (Spain) Posts: 3,719	Re: I really want to ride this bike, not part it out! Just a thought............... When you rebuilt the head, you didn't by any chance get the valve timing 180º out of phase , did you? :??: __________________ By birth an Englishman, by the grace of God a Yorkshireman. Login or Register to Remove Ads
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05-09-2011, 02:57 PM	#12
Ramblerman Junior Member Join Date: Apr 2011 Location: Arizona Posts: 18	Re: I really want to ride this bike, not part it out! I had that exact thought over the weekend. I removed the top cover of the engine again so I could see the camshaft & camshaft gear. Everything looked good. The timing mark on the generator case cover lined up with the "T" mark through the plug hole. The camshaft notch was facing the intake side of the engine AND the locating pin in the camshaft gear was at he 1:00 position as the manual says! I took the spark plug out (again) and confirmed that it was really at TDC also. Daniel
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05-09-2011, 05:45 PM	#13
geezer Senior Member Join Date: Mar 2011 Location: dahlonega GA Posts: 563	Re: I really want to ride this bike, not part it out! you did stager the rings corectly? most engines are 180 degrees apart __________________ 99 gz 250 and a currently dismantled fzr 1000 Login or Register to Remove Ads
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05-09-2011, 07:26 PM	#14
Ramblerman Junior Member Join Date: Apr 2011 Location: Arizona Posts: 18	Re: I really want to ride this bike, not part it out! Yes! I installed the rings on the piston per the diagram in the manual. BTW, it is great having that service manual available for all here to download. Whoever made that happen needs to be commended! It was an incredible resource when rebuilding the engine and working on the bike in general! :2tup: -Daniel
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05-09-2011, 09:30 PM	#15
geezer Senior Member Join Date: Mar 2011 Location: dahlonega GA Posts: 563	Re: I really want to ride this bike, not part it out! do a compression check, good thing its gonna be super easy with only one cylinder to work with. sorry im not gonna read through all the others posts. did you check the carb? might not be getting fuel to the engine, tried starter fluid? :??: double check your steps you did something wrong, so your sure timing isnt off 180? sorry dude i know you are getting pounded with the obvious. you verified fuel coming out of the tank?as in pulled the line and put it on prime and watched? a steady flow of fuel? haha ok got the vacuum line installed for the vacuum percock? are abolutely sure your header is on tight and you replaced the exhaust gaskets right? intake maniold is good? all electical connections plugged back in? thats really all there is to it. so back to the carb, you sure its done right? even if you think you did something right go back over it and check again __________________ 99 gz 250 and a currently dismantled fzr 1000 Login or Register to Remove Ads
	0

05-09-2011, 09:32 PM	#16
geezer Senior Member Join Date: Mar 2011 Location: dahlonega GA Posts: 563	Re: I really want to ride this bike, not part it out! sorry i read your post and feel like a broken record now, but still double check. do that compression check if you spray into the carb and nothing happens, its gotta be spark or compression __________________ 99 gz 250 and a currently dismantled fzr 1000
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05-10-2011, 05:01 PM	#18
Ramblerman Junior Member Join Date: Apr 2011 Location: Arizona Posts: 18	Re: I really want to ride this bike, not part it out! I agree with "geezer"... it sounds like the problem has to be spark or compression. I have a compression tester, but it only has adapters for the two older American car sizes. I am going to get the correct 12mm fitting (or a whole new tester) and we will see what's up! Thanks, Daniel
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05-10-2011, 08:41 PM	#19
geezer Senior Member Join Date: Mar 2011 Location: dahlonega GA Posts: 563	Re: I really want to ride this bike, not part it out! did you install the head gasket with the "up" lettering facing up? just a thought i had while taking a shit __________________ 99 gz 250 and a currently dismantled fzr 1000
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05-12-2011, 05:12 PM	#20
Ramblerman Junior Member Join Date: Apr 2011 Location: Arizona Posts: 18	Re: I really want to ride this bike, not part it out! It turns out that I have around 10 PSI when I do a compression test! :shocked: Obviously, this is waaaaaay too low. I would have been somewhat happy with ANYTHING over 100 PSI. I took the cylinder head off of the engine again to check things out. At first everything looked correct. But then, I aimed a flashlight behind the valves and saw that there was a partial sliver of light coming from between the valve and valve seat on every one of the four valves!! I am going to try my hand at valve lapping and see if I can get a good sealing surface to hold in the compression. Hopefully, by posting this resolution to this problem someone in the future will be able to solve a similar issue they may be having! Daniel
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