Would these carbs work for a Robin or Clone?

[zipseattle]

This might be a good question for MDB - these carbs seem to be priced right. Would these work for a 6.5 clone or Robin 6 or 7hp?

eBay Motors: PZ 20 20MM KEPAI JAPAN CARB CT 70 KAZUMA 90 110 XR XL (item 160224126372 end time Apr-05-08 07:52:47 PDT)

eBay Motors: DEKNI PZ 27- JAPAN 27MM HONDA XL 100 125 200 DIRT BIKE (item 160223375303 end time Apr-03-08 10:18:50 PDT)

 

[carver]

the pz 20 should work on a robin motor how many hp is it

 

[Solo Cali]

speaking of the robin, what hp would a 169cm be?

 

[Solo Cali]

found it... its the 6.0hp E17 motor. i just picked up mini bike this morning with this motor in it. Anyone have any speed tricks for these motors? It has a Mikuni carb on it, stock.

 

[zipseattle]

I was thinking Robin 7 hp, an EX21, haven't got one yet. But I do have a 6.5 clone...

 

[Solo Cali]

I was thinking Robin 7 hp, an EX21, haven't got one yet. But I do have a 6.5 clone...

I wonder if the EX21 carb would work on the E17 motor?

 

[minidragbike]

Those are the carbs the kids ride out here all day long. I haven't actually seen a box stock engine in a long time.

 

[Solo Cali]

Those are the carbs the kids ride out here all day long. I haven't actually seen a box stock engine in a long time.

Cool, do you if they are a dirrect replacment, or do they have to be modified?

 

[minidragbike]

It depends on the stock main jet size. Usually the original jet is a little to small and will need to be drilled or replace with a larger one.

The bigger carb usually needs a larger main jet only because it lets in so much more air then the smaller carb.

 

[Solo Cali]

It depends on the stock main jet size. Usually the original jet is a little to small and will need to be drilled or replace with a larger one.

The bigger carb usually needs a larger main jet only because it lets in so much more air then the smaller carb.

What would you suggest I start with, what size drill bit?

 

[minidragbike]

There is no spec size.

Lets say if you went with the big 27mm size carb. A lot of it will depend on your head intake port, and intake manifold size. Basically if your manifold was 27mm all the way through, and your head intake port was 27mm all the way through. You may need to run something around a #98 main jet. But most of the people I know don't run them that way. They run a much smaller manifold, maybe 24mm I.D. which changes things a lot.

The more restricted you are, the smaller main jet you will need.

You will have to know your whole setup before I can give you a good guesstimate on what you need.

 

[ex21mini]

i put a pz22 carb on my ex21 7 hp. i works great i hade to bore out the holes on the carb to fit the engine bolts.but it might fit your smaller engine better. and they make adaptors. i got about a #90 jet in mine