Aisan Carb rebuild versus new Webber versus new Aisan

[1MOA]

Mark at 'Mark's off Road' is rebuilding mine. It came from Columbia and had some major issues like wrong sized main jets, seized accelerator pump. drilled out idle jets, etc. etc. etc. I thought it was trash but Mark is managing to salvage it.

Good deal.

 

[RevISK]

Mark at 'Mark's off Road' is rebuilding mine. It came from Columbia and had some major issues like wrong sized main jets, seized accelerator pump. drilled out idle jets, etc. etc. etc. I thought it was trash but Mark is managing to salvage it.

Sure would’ve been nice to see what the resolution was for this…

 

[diesellibrarian]

Would also be great if people would spell "Aisin" correctly.

 

[Pighead]

Would also be great if people would spell "Aisin" correctly.

My carb says Aisan, my hubs say Aisin...

 

[Spike Strip]

And both are Asian.

 

[RevISK]

Would also be great if people would spell "Aisin" correctly.

Womp womp

 

[diesellibrarian]

Would also be great if people would spell "Aisin" correctly.

I should know better than to play the pedant. I stand corrected (and humbled).

 

[swixtt]

i'm wondering the size of the jets for the Primary and Secondary ?

 

[65swb45]

i'm wondering the size of the jets for the Primary and Secondary ?

The jet sizes varied widely in the US market. In the ROW 1.20 and 1.80 were standard for the F. And 1.50 with 2.00 were common for the 2F.

They are handy starting points. Study your spark plugs. If you have a decent spark profile (where that isn’t it’s own variable) then the plugs will tell you if you need to adjust from there.

I have jets from 1.08 up to 2.30 to adjust my clients’ carbs as needed. I don’t sell jets by themselves, but I have read on the forums that mikuni jets will fit, and those are out there.

 

[brian]

I have read on the forums that mikuni jets will fit, and those are out there.

they fit like oe and are available in many sizes.

 

[fjwagon]

At least that gasket was made in England !

I'm not so sure it's even gasket material although it might be, it looks like it resembles something that came out of what used to be a box. I would know...I remember using a cereal box as a gasket or plate as temp fixes, the good old days.

 

[Pighead]

I would know...I remember using a cereal box as a gasket or plate as temp fixes, the good old days.

Still do...

 

[fjwagon]

Nothing but the best for our beloved cruisers

 

[swixtt]

The jet sizes varied widely in the US market. In the ROW 1.20 and 1.80 were standard for the F. And 1.50 with 2.00 were common for the 2F.

They are handy starting points. Study your spark plugs. If you have a decent spark profile (where that isn’t it’s own variable) then the plugs will tell you if you need to adjust from there.

I have jets from 1.08 up to 2.30 to adjust my clients’ carbs as needed. I don’t sell jets by themselves, but I have read on the forums that mikuni jets will fit, and those are out there.

I’m a 79’ 2f and my jets are:

• PRIMARY JET BRASS 150
• SECONDARY JET CHROME 220