keatonx
Member
I finally got my Mikuni Vm18 carb and jaguar CDI 2.0!
The Cdi seems to work really well, I did not notice any power increase but my 66cc does run smoother so that is a plus!
Here are the mods I am working with setting up the new mikuni:
High comp. Fred Head 5.3. 145psi
44t sprocket on 29 in tires
Jaguar Cdi 2.0. With NGK plug
High air filter
Stock exhaust with mild drilled baffle
Custom gaskets, matched intake and exhaust ports.
Setting up the Mikuni for first run:
I had to make a custom intake to branch off of my 18mm port intake. 1. To fit the 22mm clamp style fitting on mikuni and 2. To mount the carb not to hit the frame.
The first air filter I tried greatly restricted the air flow so I adapted a bigger performance one to carb.
I used some thick plastic tubing I had laying around the house to make an offset intake with 22mm end. I used JB weld and hot glue to hold the press fittings together with a clamp on stock intake.
Here are some pics:
View attachment 52043
View attachment 52044
View attachment 52045
View attachment 52046
View attachment 52047
View attachment 52048
View attachment 52049
I was able to start the bike and adjust the air and idle. With the number #70 main jet it and needle on lean setting it sounds awesome revving up with clutch in. When hitting road however it still runs rich at top end reducing my speed greatly, it got better the leaner and leaner I set the need and screw adjustments. But still could not get lean enough at top end sounded like 4 cycling. Not bad at idle or mid range though. So I believe I need a smaller main jet, I have a #60 and #65 on the way! That will be the next test!
I also am in process of making a more permanent, metal, slighter offset intake manifold.
I will post an update when I get her dialed in and show the progress.....
Gas will dissolve hot glue into a sticky mess very fast, I used it to hold my ram intake onto the carb of my 2 stroke lawnmower bike. The glue turned to mush from the gas from the carb