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Old 01-21-2017, 04:03 PM   #1
Flathead
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Join Date: Jul 2016
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GZ250 carb space

Flathead here.
Here are some pictures of how to make use of limited space. The filter housing was made with lost foam method.
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File Type: jpg DSCN2916.JPG (89.1 KB, 60 views)
File Type: jpg DSCN2915.JPG (90.2 KB, 55 views)
File Type: jpg DSCN2914.jpg (97.2 KB, 55 views)
File Type: jpg DSCN2922.jpg (82.9 KB, 47 views)



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Old 01-21-2017, 09:31 PM   #2
Water Warrior 2
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Where did you find the black housing between the carb and air filter?
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Old 01-22-2017, 08:16 AM   #3
Flathead
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The housing was built by me. I needed to put the oem carb in space indicated by fist in picture. I wanted a filter also. I took some flower arrangement foam and shaped the part. You have to get all the details in your foam part right before you fiberglass it. After glassing it & allowing to dry, pour gas through it & the foam runs out. TADA! You have a part.
This sounds easy but the reality is that in tight spaces such as this you will have a few failed attempts.
The reason it looks the way it does with filter on end is the carb needs a measured volume of air to operate the diaphram & needle. Usually the filter is behind carb with box wrapped around it & a small intake hole located on box somewhere. I just changed the set up to have the measured volume behind carb with filter on small intake hole. Same outcome just different arrangement. The volume of air & intake hole size are important. The folks that just add pods to oem cv carbs are often taken for a tuning nightmare of a ride without an end. If you are going to change a filter set up on oem cv carbs you have to be a thinker to get it right. The carb has 130 main & 30 secondary with oem idle jet. No stall or lulls at any throttle position, just hard pull through gears.



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Old 01-23-2017, 02:21 AM   #4
Water Warrior 2
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WOW! Sounds like a lot of work but the results are good.
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Old 07-24-2021, 05:03 AM   #5
Mlamey
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What's up with that mono shock ? Does mine have that ? Lol I haven't looked . Don't remember noticing it.



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Old 07-24-2021, 12:01 PM   #6
Vegas Street Rider
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The mono shock is not stock. This was part of a cafe racer project, if I remember right.
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