Author Topic: NOS Protec Yamaha YZ, IT, XT550 fork caps  (Read 612 times)

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Offline LWC82PE

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NOS Protec Yamaha YZ, IT, XT550 fork caps
« on: May 03, 2017, 07:23:48 PM »
I am not 100% of all models they fit but i think they are for 38mm forks. The OD of the thread is about 31.85mm. I do know they do not fit the 1976 36mm YZ/IT forks or the 36mm XT/TT500 forks which have 29.85 OD threads. I think TT250 application on label is incorrect.

they wont work if you bars are direct over the caps unless you fit a 90 deg elbow maybe

This list below i think is the application. If i am totally wrong please let me know

Please measure the OD of your threads on your caps to be 100% sure though

These caps do not fit any 36 or 38mm Suzuki forks.

Nos brand new, never used


Part # = 1W4-23111-L1-00
Part Description = CAP BOLT,FORK
Model Count = 13
IT250H 1981 250 IT250 Dual-Purpose
IT465H 1981 465 IT465 Dual-Purpose
XT550J 1982 500 XT550 Dual Purpose
XT550K 1983 500 XT550 Dual Purpose
YZ125H 1981 125 YZ125 Competition Motocross
YZ250D 1977 250 YZ250 Competition Motocross
YZ250E 1978 250 YZ250 Competition Motocross
YZ250F 1979 250 YZ250 Competition Motocross
YZ250G 1980 250 YZ250 Competition Motocross
YZ400D 1977 400 YZ400 Competition Motocross
YZ400E 1978 400 YZ400 Competition Motocross
YZ400F 1979 400 YZ400 Competition Motocross
YZ465G 1980 465 YZ465 Competition Motocross


$80 or i will swap them for stuff as well.





« Last Edit: May 03, 2017, 07:38:37 PM by LWC82PE »
Wanted - 1978 TS185 frame
Orange Don Vesco/MS/Windsor tank
ADB Mags (vol 2 no.2) nov/dec 77& jan/feb 78 (vol2 no.3)

Offline Digga

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Re: NOS Protec Yamaha YZ, IT, XT550 fork caps
« Reply #1 on: May 04, 2017, 09:33:21 AM »
PM sent  ;)
1977 Yamaha YZ250D, 1977 Yamaha YZ400D, 1980 Yamaha YZ125G

Offline LWC82PE

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Re: NOS Protec Yamaha YZ, IT, XT550 fork caps
« Reply #2 on: May 08, 2017, 05:57:52 PM »
$65 inc postage

Been told they wont fit 250D or 400D so now i am not sure if they are for 36mm or 38mm forks.
« Last Edit: May 08, 2017, 07:38:11 PM by LWC82PE »
Wanted - 1978 TS185 frame
Orange Don Vesco/MS/Windsor tank
ADB Mags (vol 2 no.2) nov/dec 77& jan/feb 78 (vol2 no.3)

Offline LWC82PE

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Re: NOS Protec Yamaha YZ, IT, XT550 fork caps
« Reply #3 on: May 09, 2017, 12:45:17 PM »
I now think  they might be for 36mm forks and this might be correct fitment now but i am no Yamaha expert so if anyone can confirm that would be great. I think these 36mm forks may have thinner walls like the Kawasaki 36mm forks and take 29mm OD springs which will not fit inside TT/XT or 76 YZ/IT forks which are thicker walled and take smaller 26-27mm OD springs like the Suzukis.

Part # = 2X7-23111-00-00
Part Description = BOLT,CAP
Model Count = 4
IT250F 1979 250 IT250 Dual-Purpose
IT400F 1979 400 IT400 Dual-Purpose
TT250G 1980 250 TT250 Off-Road
TT250J 1982 250 TT250 Off-Road
« Last Edit: May 09, 2017, 12:53:23 PM by LWC82PE »
Wanted - 1978 TS185 frame
Orange Don Vesco/MS/Windsor tank
ADB Mags (vol 2 no.2) nov/dec 77& jan/feb 78 (vol2 no.3)

Offline LWC82PE

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Re: NOS Protec Yamaha YZ, IT, XT550 fork caps
« Reply #4 on: November 15, 2017, 08:48:06 PM »
I am open to offers on these caps
I also have some used DG caps for 37mm OD Honda showa forks 78-80
Wanted - 1978 TS185 frame
Orange Don Vesco/MS/Windsor tank
ADB Mags (vol 2 no.2) nov/dec 77& jan/feb 78 (vol2 no.3)