Randy's 1993 Honda Elite SA50 Scooter MyScoot Graphics shop
 
 
Hello Everyone,
My name is Randy Hoffmann. I own a 1993 Honda 50 elite, with a few modifications. I will let the pictures speak for themselves.

 
 
 

Parts purchased from VT cycle in Hawaii:

Metrakit 65cc big bore cylinder kit with piston
Promo Pipe
KRS Variator
KRS performance spark boot
Bando racing belt
Dellorto 19mm carb
Gray unifilter
OKO race cdi
Red racing grips
Chrome brake levers

Oil injector tank converted to hold 50/50 alcohol/water for carb injection
windshield washer pump- 40 psi.
1/8 inch electric, fluid solenoid- normally off
.63 gallon per hour, brass misting nozzle
Horn button converted to trigger injection pump

The metrakit cylinder was made for the european elite, which is called, "vision", in europe. The cylinder is the same as mine except the intake ports at the base, are different and need a thin adapter plate to work right. I made the adapter out of 1mm aluminum plate.The stock base gasket goes on the bottom of the plate and the vision base gasket , goes on top. My stock head bolted right on.
 

Next- I installed the promo pipe which fit correctly with a few small problems. The adapter plate for the cylinder, raised the exhaust port slightly, which caused the pipe to ride high. This meant the pipe was rubbing a little on the fan housing which it promplty burned through on the first ride. Metal tape over the small melted spot , fixed the problem.
 

Metrakit also came with an oversize jet that fit neatly in the stock carburateor. I decided to test the bike at this point. Using the
stock head and oversize piston, the compression ratio jumps from 7.1 to 11.5. With this compression, the promo pipe sounds like a large chainsaw on steroids.. It is LOUD and it does get attention. I am in my 40's and the neighborhood teenagers just love the bike and sound. This is totally unexpected for me. The bike ran well with the stock carb and air cleaner.

Next- I added the dellorto carb. It comes with a installed # 75 jet and a spare # 95 jet. To make a long story short, I had to use the 95 # jet,,PLUS> raise the needle valve to its most wide open position. I installed the Uni filter , which is a neat little filter.

The bike has plenty of power, is really loud and carb is working great. Now I have to change the variator and find the ideal weights. I used all sixes and the bike was too pipey, then I went to sixes and sevens , and it seems to work better. The new bando drive belt runs a little rough, but that is too be expected.

I made a flywheel holder I saw on the net using two 5/32 thick, 14inch/ 2 inch flat iron. At the end of each iron I drilled one hole and inserted 1/4inch hex head bolts. Both pieces of iron are attached to a 4/4 inch block. This tool works well for holding the flywheel as well as holding the clutch for removal.

I hooked up the OKO cdi but could not find a place for it to fit under the seat cowling. I ended up sawing off the spare fuse holder on top of the battery and then holding it in place with a plastic tie.

The stock dellorto carb cable was replaced by a red KRS cable, Steve sent me from his shop, VT CYCLES Hawaii. All parts for this bike were purchased from him and I would recommend his shop and expertise to anyone. Steve and his assistant, Keoni, treated me very well. I had to take the front cowling off, take apart the speedo housing, to fit the new throttle cable. I added the red racing grips and chrome brake levers, steve sent me. Believe it or not , the grips make a world of difference over the stock ones, at speed. The chrome brake levers add a nice little touch.

Ok, We are done with all the normal mods. Now , on to my little experiment...

I decided the last thing I would do is add alcohol injection just to see what it would do. I realized the compression ratio was pretty high and I thought water injection might smooth out the ride, especially on a hot summer day. I went to 40:1 premix on the gas, idled the stock injector pump and converted the oil tank to an alcohol/water tank. I took the tank off and cleaned it meticulously. It has a cool little filter that plugs into the tank so I cleaned it too along with all the stock oil line connected to the tank. Then I went to Schucks auto parts and bought a universal windshield washer pump for 12$. I purchased three different size "misting" nozzles and a 1/8 inch, electric, fluid solenoid from Mcmaster Carr, on the web. Total cost: $32 with shipping. The windshield pump was mounted right under the gas tank, in a small place, next to the frame. Tubing was run from the pump to a fuel filter, then to the inlet of the fluid solenoid, (which is closed until activated open with electricity) . Tubing was then run from the solenoid to the mister nozzle. The mister nozzle is attached thru the middle of a one inch diameter circle made out of 1mm aluminum. A small slit is made in the back of the uni filter. The nozzle and plate are inserted into the open end of the filter. The nozzle threaded end is placed in the slit, inside the filter, until the nozzle end punches out the back of the filter. This is attached to the tubing. If you were to look into the open end of the filter, you would see a brass misting nozzle, staring directly back at you, that was mounted flush to the back of the filter. The solenoid is needed in case of syphoning from the high placed alcohol tank to the low placed misting nozzle. The solenoid only opens when the pump comes on , then closes tight when the pump stops. The solenoid is wired to the pump and the pump is wired to my stock horn button, which I use as a trigger. I installed a small red light over the throttle, which only comes on when the trigger is pressed. This will help me calibrate the injection as I fine tune it. It works great with 50/50 alco/water combo and seems to help the midrange reach top speed faster. I have never done this before, It is only my theory, and I might just blow something up. Dont take these words as gospel- I Am Just Experimenting....  I hope it will make the little beast run faster on a hot day, but we will see...

I forgot: Doug and I were talking about rain entering the unifilter. The stock airfilter housing is part air filter and part barrier from
getting all that muck from your spinning back tire. I used some of my 1mm aluminum plate and built a nice little shield wall between the carb filter and tire. It works great for puddles and holding my solenoid but will not work in the rain. I do not ride when it rains anyway.  My bike has 7700 original miles on it since I bought it new, 10 years ago.

Randy can be contacted at :  randallhoffman@charter.net

Parts were purchased from VT cycle in Hawaii

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