I have the Zeda 80 engine. Does anyone know what is the size of the intake where the carb slides on? I have a dio reed valve but the intake on it is the same size as my stock intake I have the stock carb on there now and it slid right on, I have a expansion chamber pipe, high compression head, the reed valve, I have a windowed piston on the way and I want to upgrade my carb to the mikuni vm18 it says the diameter is 18mm where the carb slips on. Will this fit my intake? - https://www.ebay.com/itm/275190710052?hash=item4012a4ff24:g:ulsAAOSwmHhiHx0q
Intake/carburetor size?
- Thread starter Chris7420
- Start date
Chris 18mm sounds small, if you don't have calipers harbor freight sells a digital set that is good for what I've done.
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That would be too big for the mikuni vm18 though, the vm18 is 18mm where the carb slides onto the intake and that intake tube is 25mm
I found this thread here where a guy says he got the mikuni vm18 and it slipped right on to his intake but he’s got the boost bottle intake and I’m not sure what size it is - https://motoredbikes.com/threads/18mm-mikuni-carb.12891/
The stock NT is 19mm at the mount.
2pcs Carburetor Fit 66cc 80cc 2 Stroke Engine Motor Motorized Bicycle Bike | eBay
Maintain the motorized bicycle on a regular basis to ensure its integrity and proper functionality. Use caution when dealing with gasoline. It is volatile, flammable and combustible. Use front and rear lights when riding at night.
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Don't confuse mount size with carb size, they are not the same. The VM 18 fits a 23mm pipe size intake.
1. VM18-144 18mm Mikuni VM Carburetor - Mikunioz
The Mikuni VM18-144 is supplied with the following factory jetting installed:
mikunioz.com
Okay it’s just this one I’m looking at if you scroll through the pictures it shows the measurements and says it’s 18mm where is goes onto the intake so I’m confused it does have a plastic spacer thoughDon't confuse mount size with carb size, they are not the same. The VM 18 fits a 23mm pipe size intake.
1. VM18-144 18mm Mikuni VM Carburetor - Mikunioz
The Mikuni VM18-144 is supplied with the following factory jetting installed:mikunioz.com
Motorcycle Mikuni VM18-144 Round Slide Carburetor 18mm Carb For YAMAHA Jog | eBay
Find many great new & used options and get the best deals for Motorcycle Mikuni VM18-144 Round Slide Carburetor 18mm Carb For YAMAHA Jog at the best online prices at eBay! Free shipping for many products!
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If you didn't see this already here's my experience with carbs with bushings, I bought 5 engine kits in 2011 that came with the CNS2 carb, that carb uses a bushing to fit the intake. Several of the bushing failed to grip or seal and you had to tighten the carb constantly, one fell of while a friend was riding. I had to make a copper bushing to solve the problem. There's only one still in use that I know of, we have changed to the NT or the Bofeng.
You can get a larger size intake for your reed valve here
DONSP1986 G2 Reed Valve CNC Intake 19mm/21mm/23mm - Gas Motorized Bicycle | eBay
DONSP1986 Team. 23MM:18mm and 23mm. 21MM:16mm and 21mm. G2 Reed Valve CNC Intake 19MM/21MM/23MM. Inner and Out Dia of neck: 19MM: 14mm and 19mm. Thickness of intake: 5mm.
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