Bazmonaut's 3AJ rebuild

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bazmonaut
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What Bike or Bikes Do You Own?: 3AJ Tenere
Previously Owned Bikes: Suzuki GS250
Yamaha XT250 (twin shock 1979)
Honda VF750
Suzuki GSXR1100
Yamaha SRX600 (twin shock)
KTM Duke 640
Honda ST1100 Police
Location: Devon, UK

Re: Bazmonaut's 3AJ rebuild

Post by bazmonaut »

Mezo wrote: Sat Apr 11, 2020 11:27 am Any chance of you opening an account with post image & posting pictures the correct size? :biggrin:

The forum doesn't magically resize the image its me doing it manually every time you post. :rtfi: :lol:

Mezo.
Wot no magik? :rofl:

No worries. I knew it was you doing it but from what I read it's an admin permission thing. No probs have just signed up with them.
bazmonaut
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Posts: 68
Joined: Mon Apr 06, 2015 9:10 pm
What Bike or Bikes Do You Own?: 3AJ Tenere
Previously Owned Bikes: Suzuki GS250
Yamaha XT250 (twin shock 1979)
Honda VF750
Suzuki GSXR1100
Yamaha SRX600 (twin shock)
KTM Duke 640
Honda ST1100 Police
Location: Devon, UK

Re: Bazmonaut's 3AJ rebuild

Post by bazmonaut »

Cleaning, plating etc.

Fuel pump is today's victim. Originally covered in dust and grease. Chucked the whole thing in the ultrasonic cleaner, then couldn't help myself and pulled it apart. Pic below if you've ever wondered what's in it: two one way valves and a diaphram.

I nickel plated all the bits, including the spigot that goes to the inlet manifold. Bit tricky cleaning and plating such small bits, especially as the screws had captive spring washers. Pressed out and back in the spigot to the inlet manifold.

Nothing appeared to need replacing which is lucky as I couldn't find anything approaching a rebuild kit on t'internet.

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Mezo
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Re: Bazmonaut's 3AJ rebuild

Post by Mezo »

Kits are HERE but yours looks fine, kits are known as "Mikuni Pump kit 52-82"

Mezo.
"A wise man makes his own decisions, an ignorant man follows public opinion"
motorang
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Re: Bazmonaut's 3AJ rebuild

Post by motorang »

Original Yamaha number for 3AJ membrane kit would be 2TY-14940-00

Usually some NOS Ebay hits will come up.

Andy
Chop your own wood and it will warm you twice (Henry Ford)
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Mezo
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Re: Bazmonaut's 3AJ rebuild

Post by Mezo »

motorang wrote: Wed Apr 15, 2020 7:13 amUsually some NOS Ebay hits will come up.
True & there is one for sale in the USA for US$50.00 + US$15.00 shipping, but its still a 30 year old (NOS) membrane, the link i shared is for the same thing (brand new) & its only £24.00 in the UK (where Baz is located).

Mezo.
"A wise man makes his own decisions, an ignorant man follows public opinion"
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Re: Bazmonaut's 3AJ rebuild

Post by cadno »

Lovely work.
Proper attention to detail :bow:
bazmonaut
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Posts: 68
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What Bike or Bikes Do You Own?: 3AJ Tenere
Previously Owned Bikes: Suzuki GS250
Yamaha XT250 (twin shock 1979)
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Suzuki GSXR1100
Yamaha SRX600 (twin shock)
KTM Duke 640
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Location: Devon, UK

Re: Bazmonaut's 3AJ rebuild

Post by bazmonaut »

Hey guys

Here is my lovely Renthal ally handlebar. It has a nice feel and is very light. I want to keep it, but it's anodised blue and the new colour scheme will be white/red.

Options:
  • Strip the blue and leave it bare, protect it with some polish or summat and worry about it later
  • Paint the middle section (taking care not to paint the throttle part) with black engine enamel
  • Anodise at home - likely to be painful as it's a long part and anodising needs temp control and boiling to seal the dye
  • Send out to be anodised - ugh, have called around and could buy a new handlebar for the cost...
Needless to say I am leaning towards 1 or 2, probably 2.

Whatchareckon?

B

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Re: Bazmonaut's 3AJ rebuild

Post by cadno »

Commercial re-anodise is properly expensive, like you said it's cheaper to buy new if you can get hold of it.
If you rub it down with wet and dry you'll get back to original silver.
What about powder coat? I had some red anodised bars powder coated black they look spot on.
Or just buy some new Renthals, I find that anything you touch on a bike needs to be spot on for the bike to look right, grips, bars, seat, foot pegs etc.
bazmonaut
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Posts: 68
Joined: Mon Apr 06, 2015 9:10 pm
What Bike or Bikes Do You Own?: 3AJ Tenere
Previously Owned Bikes: Suzuki GS250
Yamaha XT250 (twin shock 1979)
Honda VF750
Suzuki GSXR1100
Yamaha SRX600 (twin shock)
KTM Duke 640
Honda ST1100 Police
Location: Devon, UK

Re: Bazmonaut's 3AJ rebuild

Post by bazmonaut »

cadno wrote: Thu Apr 16, 2020 9:56 am What about powder coat? I had some red anodised bars powder coated black they look spot on.
I am soon to send my battery box and front subframe off for powdercoating so that's an option... but won't the extra thickness interfere with the throttle action? The throttle tube thingo runs directly on the bar. S'pose I could always knock it down a bit with some sandpaper if it's a problem...

Thanks hadn't thought of that cadno.

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Re: Bazmonaut's 3AJ rebuild

Post by cadno »

any powder coater used to motorcycles will mask the throttle tube area.
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