Quality Assured Bicycle Gasoline Engine

Quality Assured Bicycle Gasoline Engine

CZPT Info: 
Please, obey all visitors restrictions. 
Constantly put on a helmet whilst using. 
Don’t forget that you are driving a motorized bicycle and other targeted traffic might not be able to see you. 
Even if they do see you, they will not assume that you will be touring as speedily as you are, and 
the other traffic will cut out in front of you…guaranteed! 
By no means operate your motorized bicycle on a pedestrian by way of way, sidewalk, or bicycle route while 
the engine is operating. 
By no means work your motorized bicycle in an unsafe or disrespectful manner. 

Engine Package Set up Instructions 
Set up: 
Mechanical aptitude is essential for productive set up. 
Most 24″ or 26″ bicycle with diamond body and a horizontal prime tube ought to have ample pace to 
mount the engine 
Step 1: The rear wheel sprocket shall be mounted 1st! 
Get rid of the rear wheel from the bicycle. 
Take away the rear wheel sprocket and associated 
mounting add-ons from the bag 
Slit 1 of the rubber washer as shown. This is to 
permit the rubber washer to go around the rear wheel 

Insert the rubber washers as shown 
Δ Mount the sprocket to the rear wheel as demonstrated. 
Δ Do not over-tighten and make certain that the 
sprocket is just perpendicular to the axis of 
the wheel. 
Δ Reinstall the rear wheel to bicycle. 
Next: The Carburetor 
Get rid of valve system from the carburetor. 
Insert throttle cable via screw cap. Insert spring return and connected finish of cable to valve plunger. 
Line up the cable and spring. 
Operate cable down to engine Change above mechanism into the carburetor.

Up coming: The Engine: 
The engine is created to match in between the down tube and the seat tube of a common diamond frame 
bicycle. Other sorts of bicycle might call for slight modifications. 
Placement the engine so that when the exhaust silencer is installed, it points toward the floor nearly 
parallel to the down tube. 
The exhaust silencer needs to be taken out to tighten the mounting nuts. 
So when positioning the engine, there is no want to tighten the exhaust silencer to the motor. 
Observe: If the bicycle frame tubing is too huge then you will have to use the bicycle frame adapter. 
(metal plate with three holes in the exact same plastic bag there are three bolts two that go into the motor and one 
lengthier a single that goes through the bike frame then through the motor mount)

As demonstrated on photographs below 
Bicycle body adapter Insert the 2 shortst bolts in to the motor 
Bicycle body adapter set up to the engine 
Area the engine on the bicycle body as shown 
on photo 
Mark the region of the center hole of the bicycle 
body adapter, you will need to drill a gap through 
the bicycle body on that location.

The lengthier bolt goes by way of the bicycle frame then through the motor mount) As proven on photos underneath: 
Following: Chain generate: 
Get rid of chain go over and spark plug. 
Split chain and feed into travel sprocket on engine. 
Use box spanner supplied to crank chain around 
generate sprocket. 
Remove extra chain and reconnect. 

Set up chain guide pulley. 
Do not more than-rigidity the chain. 
Set up chain guard and exchange spark plug 
Up coming: CDI CZPTal Wiring Connections 

There have been a lot of concerns and confusion about how to established-up the wiring on a bicycle motor. 
The picture beneath was sent to me by a consumer of mine (thank you Dan) right after I experienced described to him 
how it must be carried out. I given that questioned him if it would be alright to post it up below for everyone to see 
because he did this kind of a excellent task at drawing what I generally invest time writing. 
I would publish it out, but the photograph is quite considerably self-explanatory…if you nonetheless have inquiries, please let 
me know. 
As they say…”a photograph is worth a thousand words and phrases” and in this scenario it is. 
On looking at this image, yet another person sent me the photo under. Lyle hadn’t even positioned an order 
yet when he sent the picture that he manufactured, but he did get his CH80 a few times later on. It turned out very 
good and between these two photographs I will not feel it would be possible for any person to have inquiries still 
…many thanks for the photo Lyle.

There have also been a few men and women out there that have lost their spark. This is typically due to excess 
moisture obtaining into the area of the coil…water and electricity do not combine properly, lol. 
Since several of us get time and pride in having our wiring all wrapped up great and fairly I have posted 
the below images to demonstrate how the wiring connects on to the coil by itself. 
It is a whole lot less complicated to strike the connections with a soldering iron to remove the wires from the coil, then 
take away the coil and re-attach the wires. A person has not too long ago done this but couldn’t recall which 
wire went in which so now I have put pictures up to present so anybody ought to be able to do this. When you 
are putting the new coil in location, it will help to use a piece of a business card amongst the magnet and 
the coil to keep some slight spacing in there…do not forget to get rid of it after you’ve got tightened down 
the coil though.

Following: Clutch 
Install clutch lever under remaining handle brake lever. 
Operate cable down to engine. 
Insert heat protective spring (bigger spring wire) over cable. 
Insert cable by way of anchor pivot. 
Insert spring return more than clutch cable. Tighten cable to clutch lever on motor, ensuring that slack just . 
taken out 
The carburetor in the picture bellow was taken out for clarity.

The concluded set up need to look like this. 
Next: Throttle 
Get rid of current correct manage grip and replace with twist throttle. 
Existing brake lever loosen and shifted to aid installation of twist throttle 
Exchange brake lever in its original place soon after set up of the twist throttle 
Up coming: Gasoline tank 
Last but not least, mount the gas tank over the best tube. 
Tighten the gasoline valve to the tank. 
Minimize source fuel line to length and link gasoline valve to carburetor.

Completely ready to go 
Protected free cables to body of bicycle with cable tie (not carried out in images). 
Fill gasoline and lubricant combination in accordance with suggestion on the handbook. 
Compress the clutch and begin biking bicycle as typical. When sufficient speed is reached, launch the 
clutch. This will begin the engine. 
To stop, compress and have interaction the clutch lever. Brake as typical. 
To cease the engine, choke the carburetor fully with the lever on the carburetor. 
Alternatively, push the destroy swap which is supplied. When motor is not running shut of fuel valve 
1.Critical: Make sure you Study THIS: Gas and Oil Mixture for Gas ratio 
The engine is a 2 cycle style, consequently, a gasoline/oil combination is necessary. For the duration of the break-in 
period (1st gallon of gas), the ratio for 48cc is 25 parts gasoline to one component oil. Break in ratio for 80cc is 
twenty to one. Following the break-in period, the ratio is elevated to 30 to 35 areas gasoline to 1 part oil. 
*Notice: Use only Synthetic two Stroke Oil to insure appropriate engine lubrication. 
Remember safety 
1. Wipe up any spilled gas. Never ever fuel a scorching motor or smoke whilst fueling. This could consequence in 
unexpected fire, personalized injuries. Often move your motorized bicycle at the very least 10 feet from any fueling area 
ahead of trying to begin it. By no means depart the tank gas cap off following fueling as rain h2o will 
contaminate the gasoline and lead to motor failure. 
2. Open up the fuel valve. Little lever pointed down with gasoline line is in the open up situation. 
three. Depress the modest spherical cap plunger, ( Tickle button ), to primary carburetor. Situated on left side of 
the carburetor subsequent to the idle change screw. 1 or two times is sufficient. 
4. Raise choke lever to the upward position. This is the small lever on the proper facet of the carburetor. 
All the way Up the choke is on. All the way Down the choke is off. Moveprogressively downward to 
off placement throughout engine heat up period. 
5. Pull the handlebar clutch lever inward, to disengage the motor from the rear wheel. 
6. Pedal (down hill if feasible for first commence) 
7. Let out the clutch lever all the way out and continuing to pedal. The end result is a immediate engine hook up 
with the rear wheel by way of chain and sprocket and the engine will now commence spinning, Pedal till motor 

begins. Speed up gradually at initial. 
eight. Twist throttle to increase speed, reverse twist throttle to reduce speed. To quit, disengage clutch 
and use brakes. To speed up, pedal and launch clutch even though opening throttle. 
9. Alter choke to the smoothest engine managing position. 
10. Following heat up drive choke lever all the way down. If engine races way too fast, or too sluggish, pull clutch 
lever and lock in the notched catch, quit and adjust motor rpm. 
11. If the rpm requirements changing, change the idle change screw (still left aspect of carburetor) in or out gradually to 
obtain the appropriate idle pace of about 1400 rpm +/- one hundred rpmTo properly break the engine in, Do 
not exceed 15 mph or 30 min. continuous working for the first 50 HangCZPTs for the duration of motor brake in. Engine 
will build more electrical power following break in. 
twelve. To end the engine, drive Destroy swap and switch off fuel valve at tank. Turning off the gas will prevent 
gas from being siphoned from tank. Warning Observe: In no way go away the tank gas valve in “open” placement” 
when motor is not running or the bicycle is in storage. 
13. Soon after or before each experience check all mounting fasteners, such as high definition. bolts, axle and brakes. 
fourteen. Warning Observe: Motor lock up or piston seizure due to incorrect gasoline / oil mixture will not be 
lined by manufacturing unit warranty. This the responsibility of the operator / operator to make positive the gasoline and 
oil is combined properly. 
frequently Questioned Questions 
Can I put in the bicycle engine kit on a mountain bicycle? 
Yes, you can transform your typical mountain bike into a motorized bicycle. 
Are parts CZPT for the bicycle motor kit? 
Indeed, parts are CZPT as nicely as update elements! 
Does the bicycle motor package comes with almost everything I need to put on my bicycle? 
Yes, this bicycle motor package arrives with completely every little thing you need 
Do I need to have a driver license to trip a motorize bicycle? 
In most states you never want a driver license to journey the motorized bicycle, but the law are various in 
some states. We advocate that you verify in you condition. 
Does this bicycle motor kit in shape all dimension bikes? 
No, this type of bicycle motors package was design for 26’inches bikes and some24 inch body size bikes

Routine maintenance Routine 
a) Get rid of appropriate aspect go over from motor. 
b) Place a small dab of grease at ear mesh spot. 
c) Change protect. 
Dependent on dusty riding circumstances, clear air filter every single 5 to twenty several hours of procedure by 
getting rid of the filter protect to accessibility the monitor and element. Clean aspect with a 
degreasing agent. Be confident aspect is entirely dry ahead of re-assembly. 
Spark Plug 
Remove spark plug and inspect for surplus carbon construct up. Clear, re-gap to .6mm – .7mm 
if essential. Check plug right after every twenty several hours of operation. A suited alternative plug is 
NGK BP-6L if you can discover it. In any other case, go for the NGK B-6L. The NGK R7-HS is 
also advisable for greater performance and smoother idling. 
Exhaust system 
Right after twenty hrs of procedure verify exhaust pipe for excessive oil and carbon create-up. Be 
positive to use provided assistance strap to safe exhaust muffler to strong anchor stage on bike 
frame or motor. 
a) Get rid of exhaust pipe cap by loosening the retaining screw. 
b) Pull cap and baffle out of pipe. 
c) Clear with degreaser, rinse and dry. 
d) Re-assemble 
Excessive intervals of minimal velocity operation, idling or leaving gasoline petcock in the “on” 
place throughout shut down periods may result in the pipe to turn into clogged with unburned 
CZPTy time bicycle is ridden check the rigidity of the push chain by: 
a) Rolling to bicycle CZPT to get rid of slack from the bottom of the chain. 
b) Find middle & drive downward on the top of chain even though measuring the deflection. 
c) Tighten chain if deflection is a lot more than 15mm. 
d) Reduced velocity “chain rattle” can be eliminated with the software of graphite grease to chain.

CZPT Bolts 
Tighten all fasteners right after every five hours of operation. It really is most crucial to check 
cylinder head bolts: tighten in an X sample to twelve ft/lb. employing a torque wrench. A twopiece 
cylinder and head layout motor requires head bolts be kept limited. 
Check head bolts prior to every single and each ride, vibration can result in them to loosen and 
blow a head gasket. Caution: Do not more than torque or head bolts may possibly crack off. 
Correct facet gears 
Get rid of go over plate and maintain tiny quantity of hefty grease on equipment train. 
Do not more than grease as leaks will occur and also may possibly adversely impact clutch procedure. 
Regular greasing if essential will assist decrease equipment use and maintain equipment train silent. 
CZPT Information 
Obey all traffic laws. Always wear an authorized helmet although using. Remember 
that you are driving a motorized bicycle and other visitors might not be capable to see you. 
In no way work your motorized bicycle on a pedestrian thoroughfare or pathway whilst the 
motor is operation. Never ever function you motorized bicycle in an unsafe way. 
Check YOUR Neighborhood AND State Legal guidelines Just before Using ON STREETS. 
You should read through this petrol and oil mixture ratio. 
The motor is a 2-stroke design and style therefore a petrol/oil combination is essential. Initial 3 tanks 
of gasoline use 6 ounces of two-stroke oil to 1 gallon of fuel. After the first 3 tanks, use 4 ounces 
of oil to 1 gallon of gasoline. 
USE ninety three Quality (Premium) GASOLINE. Be certain to mix gasoline and oil before 
incorporating to tank. Do not add independently. 
Do not exceed 20km/h for the duration of break in time period. Velocity may be improved to 35km/h after 
the very first 500km. 
Use only high-quality two-stroke motorbike oil to make certain suitable motor lubrication. 
Keep in mind basic safety first. Wipe up any spilt gasoline. Never refuel a hot engine or smoke whilst 
refueling. This could outcome in fire and individual harm. Often shift your motorized bike 
at minimum three meters from any refueling region ahead of trying to begin it. By no means depart the 
tank fuel cap off right after refueling as rainwater could contaminate the gas and trigger engine 
one) Open the gasoline valve. Modest lever pointed down with fuel line is in the open placement. 
two) Depress the small spherical cap plunger (tickle button), to prime carburetor.One or two instances are 
3) Raise choke lever to the upward placement. This is the tiny lever on the right side of the carburetor. 
All the way up the choke is on. All the way down the choke is off. Go progressively downward to off 
situation throughout engine warm up period of time. 
4) Pull the handlebar clutch lever inward, to disengage the engine from the rear wheel. 
five) Pedal (down hill if attainable for initial start off). 
six) Allow out the clutch lever all the way out and continuing to pedal. The outcome is a direct engine hooks up

with the rear wheel through chain and sprocket and the motor will now start off spinning, pedal till motor 
starts off . Accelerate slowly and gradually at initial. 
seven) Twist throttle to increase pace, reverse twist throttle to lessen pace.To stop, disengage clutch 
and use breaks. To accelerate, pedal and launch clutch even though opening throttle. 
eight) Alter choke to the smoothest engine operating place. 
nine) Soon after heat up press choke lever all the way down. If motor races as well quickly,or too slow, pull clutch lever 
and lock in the notched capture, end and adjust motor rpm. 
ten) If the rpm needs adjusting, switch the idle change screw (best of carburetor) in or out gradually to receive the 
suitable idle velocity of about 1400 rpm +/- 100 rpm. To accurately crack the motor in, do not exceed 25 
kph or thirty min. continuous managing for the 1st 80 klms during motor split in. Motor will produce more 
energy after split in. 
11) To cease the motor, drive get rid of change and flip off gasoline valve at tank. Turning off the gasoline will prevent 
fuel from getting siphoned from tank. In no way leave the tank gasoline valve in “open” placement when motor is 
not managing or the bike is in storage. 
twelve) Af ter or ahead of every single experience examine all mounting fasteners, such as head bolts, axle and brakes. 
13) Warning: Engine lock up or piston seizure because of to poor petrol/oil mixture will arise. This 
responsibility of the owner/operator to make positive the petrol and oil is combined correctly.


Quality Assured Bicycle Gasoline Engine