New head pipe(s) replacements

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LC Cnd
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Posts: 1454
Joined: Sat Feb 08, 2014 5:39 pm
Location: Vancouver Is. Canada

New head pipe(s) replacements

#1 Post by LC Cnd » Wed Jun 07, 2017 9:23 pm

Attempted to obtain good shaped used one - no response. Did the home work and learnt the pipe are unique but can be purchased:
specs:
outside diameter: 1 3/4"
curve: 180 deg.
centre line radius mandrel bend: 6
thickness gauge: 16

Lordco sells mandrel (curve is not crushed but the same dia.) Part # 42381. J shaped header pipes priced at $24 CND in stock that fit. Thought I had to go thru a specialty pipe bend company - didn't. Suspect the same thing applies to the RZ. Photo's attached. Welding next.
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JonW
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Re: New head pipe(s) replacements

#2 Post by JonW » Wed Jun 07, 2017 10:36 pm

Good score. FWIW You can also tweak curved pipe like that 'back a bit' if needed using a socket the size of the pipe in a vice and some heat in the area you want to 'straighten' by simply lifting the other end. Ive done that before to good effect.
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

Like Watches? www.PloProf.com & www.DeskDivers.com

LC Cnd
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Posts: 1454
Joined: Sat Feb 08, 2014 5:39 pm
Location: Vancouver Is. Canada

Re: New head pipe(s) replacements

#3 Post by LC Cnd » Thu Jun 08, 2017 12:50 am

Good tip Jon - did you you MAP gas to heat up the pipe?

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JonW
Posts: 10599
Joined: Sat Oct 10, 2009 4:33 am
Location: Sydney
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Re: New head pipe(s) replacements

#4 Post by JonW » Thu Jun 08, 2017 9:32 am

Yes, thats the stuff :)
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

Like Watches? www.PloProf.com & www.DeskDivers.com

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