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Took my measurements today........

Started by Firehawk068, March 31, 2013, 10:56:26 PM

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Firehawk068

Started by cleaning the top of the engine...........which consisted of 3 cans of brake cleaner, and a bunch of compressed air.



Removed the Valve cover bolts/grommets........Then a rubber mallet to dislodge the valve cover.
Pretty clean in there considering the mileage.........





One of the first thing I noticed, is slotted cam gears..........I didn't think they came with these from the factory? I couldn't see any name on them? Since I'm the second owner, I'm guessing the first owner had these put in when he had the top end serviced at some point?



Next I pulled the plugs......I put these in about 3 years ago......



I also marked the crank rotation, so I wouldn't accidentally turn it the wrong way and F it up.



Next, I laid out my worksheet, and my feeler gauges.



Before I started measuring, I used a fine honing stone to smooth off any burrs off the leading edges of the feeler gauges, and used the micrometer to check the accuracy of said feeler gauges..........I found a few of them to be off, so I re-marked them.....



I used the "Cam lobes pointed 180 degrees away from the valve" method, and went back around and measured them all a second time to verify my measurements.

Turns out that only 4 of the intake valves are still within spec.
The other 4 intakes, and all 8 exhaust valves are too tight.......... :negative:

Next up is using the tool that Lee C. let me borrow, to take the shims out and mic them. See how many I can get away with moving around, then hopefully finding a shop that will let me exchange some or all of the rest.  :scratch_one-s_head:
Alan H.
Denver, CO
'90 FJ1200

1tinindian

Getting her ready for the WCR!
Atta-boy Alan!
Tires are my main concern before we go!

Leon
"I want to be free to ride my machine without being hassled by the "man"!
91 FJ1200

racerman_27410

HOw is Lee doing?  Please tell him i said hi next time ya see him!


KOokaloo!


Frank

Pat Conlon

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

yamaha fj rider

Way to go Alan, slotted cam gears very nice, if you get a degree wheel then adjustments can be made for stretch in the cam chain. :yahoo:

Kurt  
93 FJ1200
FJ 09
YZ250X I still love 2 strokes
Tenere 700
FJR1300ES

ribbert

Quote from: Firehawk068 on March 31, 2013, 10:56:26 PM

One of the first thing I noticed, is slotted cam gears..........I didn't think they came with these from the factory? I couldn't see any name on them? Since I'm the second owner, I'm guessing the first owner had these put in when he had the top end serviced at some point?





Presuming your timing is stock, it's interesting to see how far to one side the exhaust sprocket is.
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

fj11.5

wondered about that myself,  wouldnt of thought one would go that far out of time
unless you ride bikes, I mean really ride bikes, then you just won't get it

84 Fj1100  effie , with mods
( 88 ) Fj 1200  fairly standard , + blue spots
84 Fj1100 absolutely stock standard, now more stock , fitted with Fj12 twin system , no rusted headers for this felicity jayne

Firehawk068

Quote from: ribbert on April 01, 2013, 07:56:17 AM


Presuming your timing is stock, it's interesting to see how far to one side the exhaust sprocket is.

Thats the first thing I noticed? And I was wondering about that myself?
It would be interesting to put a degree wheel on it, and see what the cam timing is set at?
When I bought the FJ, the previous owner said he had the top end of the engine done by a guy who builds Legends Car engines, but thats all the information I got from him.
I assumed it was a shop in Phoenix, but it may not have been.

I will tell Lee that you guys said HI.
Alan H.
Denver, CO
'90 FJ1200

movenon

Life isn't about having the best, but about making the best of what you have...

1990 FJ 1200