 Timing, how the hell? |
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 Feb 26 2012, 06:13 PM
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#1
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Novice  Group: Members Posts: 32 Joined: 17-November 11 Member No.: 14804 Time Spent On Forums: 1d 3h 12m 10s  |
Hey there
so finally getting the 88 1k back together, however, im racking my brain on how to time this thing, and search/the manual is lacking in definitive answers. Ive got the crank at TDC as per the timing mark in the view hole on the right side of the motor, as well as having cylinder 1 at TDC. now, how do i time these cams? i see two dots on each of them on the sprockets, are these the timing marks? just want to make sure i get this thing timed properly, dont want all the work i put into it to go to waste b/c of human error, this is the last thing i basically need to do to get it running, just need some insight on how to do it properly thanks Pic of TDC mark on cam  Pic of mark on intake cam  Pic of mark on exhaust cam 
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Feb 26 2012, 07:17 PM
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#2
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 Wrench  Group: Members Posts: 2193 Joined: 22-October 07 From: Cheboygan, Mi. Member No.: 7153 Time Spent On Forums: 105d 14h 33m 46s |
I'm not sure on the 1k, and don't recall, but like on the 600s, the cam timning is indicated on the end of the cam itself-NOT on the cam sprockets.
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Feb 26 2012, 08:02 PM
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#3
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Novice Group: Members Posts: 32 Joined: 17-November 11 Member No.: 14804 Time Spent On Forums: 1d 3h 12m 10s |
QUOTE (reelrazor @ Feb 26 2012, 07:17 PM)  I'm not sure on the 1k, and don't recall, but like on the 600s, the cam timning is indicated on the end of the cam itself-NOT on the cam sprockets. there is a hole on the end of the last lobe on the right side of each cam shaft, thats the only marking other then that dot on the cam shafts |
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Feb 26 2012, 09:35 PM
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#4
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 Left-handed Torque Wrench  Group: Moderator Posts: 2441 Joined: 27-October 08 From: Scarberia, Canada Member No.: 8780 Time Spent On Forums: 75d 16h 34m 23s |
Hi, guys.
According to Ye Officiale Manualle, the cam timing marks are on the sprockets, and are matched to marks on the cam caps. Page from the manual is attached:
Attached File(s)
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Feb 27 2012, 12:34 AM
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#5
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Novice Group: Members Posts: 32 Joined: 17-November 11 Member No.: 14804 Time Spent On Forums: 1d 3h 12m 10s |
QUOTE (DonTZ125 @ Feb 26 2012, 09:35 PM) Hi, guys. According to Ye Officiale Manualle, the cam timing marks are on the sprockets, and are matched to marks on the cam caps. Page from the manual is attached: excellent stuff, i did notice that there were lines on each cap that i thought were just casting marks, but it looks like those are the timing marks. so basically, the dots on the camshafts more or less point straight up when aligned with the caps? are there any other tricks/tips i should know about getting these things back installed/timed? |
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Feb 27 2012, 06:31 AM
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#6
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 Wrench  Group: Admin Posts: 4460 Joined: 29-January 10 From: Indianapolis, IN Member No.: 10559 Time Spent On Forums: 90d 3h 30m 58s |
QUOTE (bikerbill2021 @ Feb 27 2012, 01:34 AM) excellent stuff, i did notice that there were lines on each cap that i thought were just casting marks, but it looks like those are the timing marks. so basically, the dots on the camshafts more or less point straight up when aligned with the caps? are there any other tricks/tips i should know about getting these things back installed/timed? Bill, Per the book, when you get the cams in and the chain on crank the engine around in the proper direction one or two full revolutions and bring it back to TDC. Check the timing marks again. If they came back where you want them then your are done. If one or both cams are about one tooth off, then do it over and recheck. Sometimes they fall right in and sometimes you have to do it a couple of times to get it right. -------------------- Read this first then ask questions:
CPR for the FZR Rotortech Indianapolis 1994 Yamaha FZR 600 Purchased as project bike Jan 2010 Finished 10 July 2010 My Build Thread with pictures here. |
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Feb 27 2012, 02:07 PM
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#7
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Novice Group: Members Posts: 32 Joined: 17-November 11 Member No.: 14804 Time Spent On Forums: 1d 3h 12m 10s |
QUOTE (rotortech @ Feb 27 2012, 06:31 AM) Bill, Per the book, when you get the cams in and the chain on crank the engine around in the proper direction one or two full revolutions and bring it back to TDC. Check the timing marks again. If they came back where you want them then your are done. If one or both cams are about one tooth off, then do it over and recheck. Sometimes they fall right in and sometimes you have to do it a couple of times to get it right. cool thanks for the help, ill get em in today and see what happens |
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