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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#1  Unread postPosted: June 14th, 2018, 1:05 pm

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Joined: February 14th, 2012, 10:03 pm
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Location: Marengo, Ohio
Local time: August 21st, 2018, 9:43 am
Country:  United States (us)
My Bike Models: 1983 gl1100-alternator converted, c-5 ignition installed--Engine died in Grand Prarie BC

98 valkyrie

83 GL1100
My Bike Logs forum link: viewforum.php?f=123

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I have never been inside an engine before.

I am replacing the valves on the left side of an 1100.

Can someone give me what I need to do this replacement?

Intake valve 14711-371-000
Exhaust valve 14721-463-770

What else do I need while I am in there?

A bolt fell down the opening and tore up both valves. The piston and walls are good.

Thanks for any info.

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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#2  Unread postPosted: June 14th, 2018, 2:33 pm

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Joined: February 14th, 2012, 10:03 pm
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Total Posts: 1285
Active Topics: 191

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Location: Marengo, Ohio
Local time: August 21st, 2018, 9:43 am
Country:  United States (us)
My Bike Models: 1983 gl1100-alternator converted, c-5 ignition installed--Engine died in Grand Prarie BC

98 valkyrie

83 GL1100
My Bike Logs forum link: viewforum.php?f=123

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Here is a list I found on another site.
Is it complete? Since I am only doing the left head, Do I need half of the qty he lists?


Prices are from November, 2012 at CyclePartsNation.com and totals right around $200.

SEAL, VALVE STEM (NOK)
item: 12209-MB9-003
Price: $6.23
Qty: 8
$49.84

GASKET, CYLINDER HEAD
item: 12251-MG9-306
Old Sku: 12251-MG9-000
Price: $42.13
Qty: 2
$84.26

O-RING (40X2.6) (Intakes)
item: 91301-371-005
Old Sku: 91301-371-003
Price: $2.70
Qty: 4
$10.80

O-RING (6.5X1.5) (Oil Meter)
item: 91305-371-003
Price: $1.67
Qty: 2
$3.34

O-RING (4.1X1.5) (Oil Meter)
item: 91308-371-003
Price: $2.81
Qty: 2
$5.62

GASKET, CYLINDER HEAD COVER (between head and belt pully)
item: 12391-371-306
Price: $4.04
Qty: 1
$4.04

GASKET, BREAKER (between head and belt pully)
item: 30376-371-306
Price: $3.29
Qty: 2
$6.58

GASKET, EX. PIPE
item: 18291-286-306
Price: $4.18
Qty: 4
$16.72

GASKET, WATER JOINT
item: 19429-371-306
Old Sku: 19429-371-000
Price: $3.71
Qty: 2
$7.42

O-RING (21.9X2.3) (Water Pipe)
item: 91301-MB6-003
Price: $1.67
Qty: 4
$6.68

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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#3  Unread postPosted: June 14th, 2018, 5:07 pm

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Location: McKees Rocks Pa
Local time: August 21st, 2018, 9:43 am
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My Bike Models: 1983 Goldwing Interstate


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I did that too...only bent one valve, but cracked the valve guide. Make sure yours aren't damaged...they very well might be

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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#4  Unread postPosted: June 15th, 2018, 3:36 am

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Location: Clinton, TN
Local time: August 21st, 2018, 9:43 am
Country:  United States (us)
My Bike Models: GL1800 ('06)
GL1000 'project'- '78 with '75 motor
Ex 86 SEi
Ex 77 GL1000
Ex 75 RD400
Ex 73 RD250
Ex 68 TR6C Triumph (chopped)


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Yes, divide by two. I had my seats ground for $10, but that was very lucky. Might as well replace belts while they are off. Take note of the direction the oil restrictor points as you remove the head. Maybe take a good photo as I've never seen a good shot of it. Also get some gasket remover and single-edge razor blades. Gasket removal takes the longest. Torque wrench for tightening it back and moly grease for the head bolts. If water tubes come loose on removal, clean the sealing area well and grease new o-rings with silicone grease. Be careful removing exhaust. If you break a stud, be patient in removing the rest. Use a good penetrating oil and let it set for 24 hours on all but the head bolts. Don't forget to remove the small bolt at the bottom of the oil return galley (between exhaust ports).

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"Love 'em all.... Let God sort 'em out!"


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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#5  Unread postPosted: June 15th, 2018, 4:15 am

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Location: Centralia Illinois
Local time: August 21st, 2018, 8:43 am
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My Bike Models: 78 GL1000
84 GL1200I trike project
84 GL1200I
85 GL1200I
86 GL1200A
88 GL1500I


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+++ on the small bolt on the bottom of the oil return gallery. Bitter experience: if you forget that bolt and try to remove the head, you WILL crack the head and then go buy a replacement. :builder: It's thin there and cracks easily.

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Deja Moo: The feeling that you've heard this bull before.


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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#6  Unread postPosted: June 15th, 2018, 8:27 am

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Joined: February 14th, 2012, 10:03 pm
Last visit: Yesterday, 7:58 pm

Total Posts: 1285
Active Topics: 191

Total Images: 839
Location: Marengo, Ohio
Local time: August 21st, 2018, 9:43 am
Country:  United States (us)
My Bike Models: 1983 gl1100-alternator converted, c-5 ignition installed--Engine died in Grand Prarie BC

98 valkyrie

83 GL1100
My Bike Logs forum link: viewforum.php?f=123

Profile Personal album

With the cost of the exhaust valve I decided to buy the whole left head off e-bay.

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Share Post: Share on FacebookShare on TwitterShare on TumblrShare on Google+Share on MySpace  Post Number:#7  Unread postPosted: June 24th, 2018, 4:07 am

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Location: Buffalo, NY
Local time: August 21st, 2018, 9:43 am
Country:  United States (us)
My Bike Models: '83 gl1100 A,I,&S
'78 cb750k,k,&k
'74 cb550
& a Harley FXSTC


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If you plan to keep the bike, you might want to consider doing both head gaskets to keep the "team" even. I had a gasket fail at just 52k miles on my Aspencade.

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Intrigued by the wail, seduced by the scream.


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