Just Ordered a Brozz 250

[goat67]

Ok I finally got some time to pull the carb and replace the bottom screws and the air fuel mixture screw.

The Pilot/Low jet installed is a 34.
The Main Jet is a 105

The pilot jets for this carb are 13 mm long and they are available here

https://www.aliexpress.com/item/New-...6-c00df13f6d79


I put in a 108 Main Jet up one from the stock 105
I put in the new needle and put the clip in the 4th down position I wanted it to be similar to what I had before.

I put in the new screws in the bottom and the new Air Fuel Adjustment screw.

It still is a major PITA adjusting this who the f would put it in such an awful place.

I am going to see if I can find a flexible screw driver shaft.

Ordered this

https://www.aliexpress.com/item-img/...00017.4.HHiJs8



I definitely need the pilot / low speed jets I have to adjust it out around 3 turns to get a good idle and starting.

The top end is better with the one jet bigger when you crack the throttle much more responsive.

So I am going to order those jets and see what I come up with.


Hope this helps someone else.

[BigWeld]

Well now I don't feel so bad, I already ordered the two styles of pilot jets I thought MIGHT work. The ones you have linked in the above post, and the ones that measured 11mm overall just in case.

I saw those anodized air screws for sale, but didn't think they would work because that commonly made style was for a different generation of Keihin. Ours are PWKs. I hope I'm wrong though, they make some cool looking ones.

[goat67]

Originally Posted by BigWeld

Well now I don't feel so bad, I already ordered the two styles of pilot jets I thought MIGHT work. The ones you have linked in the above post, and the ones that measured 11mm overall just in case.

I saw those anodized air screws for sale, but didn't think they would work because that commonly made style was for a different generation of Keihin. Ours are PWKs. I hope I'm wrong though, they make some cool looking ones

I ordered that Adjustment screw specifically because of the profile of the tip others I have seen did not look like this. We will see when it shows up.

BTW I do not think the carbs we have are a copy of the PWK I think it is a PZ30

[BigWeld]

Originally Posted by goat67

I ordered that Adjustment screw specifically because of the profile of the tip others I have seen did not look like this. We will see when it shows up.

BTW I do not think the carbs we have are a copy of the PWK I think it is a PZ30

I could be wrong, but I thought PZ30 WAS a PWK. "PZ30" being a size and application specific part number for our carb. Pz26's, pz30's etc all being part of the PWK generation of carbs sharing parts with the "OKO" series of carburetor.

[Southokilla]

What kind of oil do you guys run in brozz 250. Just got a shark used gastrol gtx motorcycle 10w-40. Manual says use 15w-40. I put 1L in and manual says 1.1L capacity it seems a little low in the window.

[goat67]

Originally Posted by Southokilla

What kind of oil do you guys run in brozz 250. Just got a shark used gastrol gtx motorcycle 10w-40. Manual says use 15w-40. I put 1L in and manual says 1.1L capacity it seems a little low in the window.

I am running Shell Rotella 15w-40w Diesel. I start with 1L and then check the window add a bit more as needed.