CAREFUL! never use air, unless the float bowl is removed, as air pressure can damage the float.
Have fun,
Have fun,
4 stroke engine stalling out
- Thread starter Mr Hydroseed
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Mr Hydroseed
New Member
- Local time
- 7:45 AM
- Joined
- Jul 29, 2011
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- 12
Sad Update.
I did remove both plastic idle jets and sprayed them out. Sorry I haven't checked the valve clearance yet, but what I did do is install the 2nd brand new motor and a new exhaust. I used the new carb with stock jet, but keep in mind i did use it to try to remedy the first engines problem. I felt 97% confident that because everything was new and stock it would run the same as it did with my first kit... What a sad awakening of my shattered confidence. It ran so much worse! I could barely get it to start and if i did manage to do that I couldn't even ride it once because it would stall with the slightest amount of throttle. Ok so how is this possible? What have I not changed? The fuel, maybe there was water in it? maybe When I drilled the main jet awhile ago I effed up and grabbed an old fuel can and filled it up right before what i thought was going to be a long joyful ride. I drained the fuel out and refilled it with fuel that I know I just got a few days prior. Another thing is that the engine manual specifies not to use gas with a higher percentage than 5% ethenol. I'm pretty sure the pump said 10%, but I really don't think it would cause this much trouble!!! Actually before I drained the fuel from the tank, I don't even think I could get it to idle with the choke off. Now I could get it to idle but it was really finicky. The throttle had to be just right to even run. I should say that I must of removed the carb and bowl and inspected and cleaned everything at least 4 times with one carb and 4 times with the other carb and tried millions of different mixture screw adjustments. What I've concluded is that the carb is not giving the engine enough fuel. The only possible way to not have the engine stall when throttle was applied was to put the choke at 1/4 open. This is crazy! Why is this so difficult! I must own about 33 small engine powered devices and I can always get them running eventually. The only thing I can think of now is to be certain my fuel canister is clean and buy more fuel? I think I will try to take the carb off the engine with fuel line still attached and run air through the plenem to see if its atomizing any fuel. I came so close to driving over my bike with my truck repeatedly. THE END.
I did remove both plastic idle jets and sprayed them out. Sorry I haven't checked the valve clearance yet, but what I did do is install the 2nd brand new motor and a new exhaust. I used the new carb with stock jet, but keep in mind i did use it to try to remedy the first engines problem. I felt 97% confident that because everything was new and stock it would run the same as it did with my first kit... What a sad awakening of my shattered confidence. It ran so much worse! I could barely get it to start and if i did manage to do that I couldn't even ride it once because it would stall with the slightest amount of throttle. Ok so how is this possible? What have I not changed? The fuel, maybe there was water in it? maybe When I drilled the main jet awhile ago I effed up and grabbed an old fuel can and filled it up right before what i thought was going to be a long joyful ride. I drained the fuel out and refilled it with fuel that I know I just got a few days prior. Another thing is that the engine manual specifies not to use gas with a higher percentage than 5% ethenol. I'm pretty sure the pump said 10%, but I really don't think it would cause this much trouble!!! Actually before I drained the fuel from the tank, I don't even think I could get it to idle with the choke off. Now I could get it to idle but it was really finicky. The throttle had to be just right to even run. I should say that I must of removed the carb and bowl and inspected and cleaned everything at least 4 times with one carb and 4 times with the other carb and tried millions of different mixture screw adjustments. What I've concluded is that the carb is not giving the engine enough fuel. The only possible way to not have the engine stall when throttle was applied was to put the choke at 1/4 open. This is crazy! Why is this so difficult! I must own about 33 small engine powered devices and I can always get them running eventually. The only thing I can think of now is to be certain my fuel canister is clean and buy more fuel? I think I will try to take the carb off the engine with fuel line still attached and run air through the plenem to see if its atomizing any fuel. I came so close to driving over my bike with my truck repeatedly. THE END.
bideronit13
Member
I grew up on dirt bikes and used to go out in the desert and sometimes have to do carb work out there.
My method of finding the rite settings are simple.
1) Turn the mixture screw in all the way till it wont even start.
2) Make 1/4 turns till it starts
3) Write down the starting point like 2 1/4 turns for example
4) Turn the bike off.
5) keep making 1/4 turns turning off the bike after each turn.
6) find the middle point between the two and leave it there.
7) Then fine tune the air screw
Im not saying this is going to get your bike going but it allways worked for me.
My method of finding the rite settings are simple.
1) Turn the mixture screw in all the way till it wont even start.
2) Make 1/4 turns till it starts
3) Write down the starting point like 2 1/4 turns for example
4) Turn the bike off.
5) keep making 1/4 turns turning off the bike after each turn.
6) find the middle point between the two and leave it there.
7) Then fine tune the air screw
Im not saying this is going to get your bike going but it allways worked for me.
bideronit13
Member
Opps forgot to say hi so hello.
On number one above its supposed to say turn the screw all the way in and nothing else.
Good Luck
On number one above its supposed to say turn the screw all the way in and nothing else.
Good Luck
Hi Mr Hydroseed,
In my area we still have real gasoline, however at a recent motorbike rally I attended I had to use 90% gas 10% moonshine [corn fed fuel]. The only difference was the idle needed to be set a little higher.
Because you didn't buy your kit from a dealer [no support], but a box seller, you will have to keep trying until you stumble across a solution.
I find it interesting that you own 2 kits and still can't get it going.
By changing the motors you have elimanted many possibilities, and sure makes it look like carburetor problems.
Sounds like you have a leak somewhere in the intake system, as playing with the carburetors on both motors is the only common to both setups.
If you can get the motor to run, simply sparay WD40 around the manifold, gaskets, spacers, etc to see if the motor changes speed or idles faster or slower. This will let you know if it is an air leak.
If the kit was purchased from us we would have tested and replaced any items not working correctly [as would any other vendor on this site] ASAP.
Although you didn't buy from a vendor on this site, I will offer to test, tune, and adjust the carburetor for you for a small fee if interested. You can send both carburetors and I will install on our factory prototype motorbike, and log in 50 miles to make sure it is totally correct. If all else fails, contact me and I will do my best to get you "back on the road again" We have all the necessary equipment to check CFM, flow, throttle response, and adjust under load.
Please don't take this offer as bid to "get in your pocket" but as an offer to help, as I am sure your final cost won't be much. In fact I am guessing the shipping will be more than the labor to make the carburetors correct.
Please make sure the issues are carburetor related, as I don't want you to spend money on a non problem.
Have fun,
In my area we still have real gasoline, however at a recent motorbike rally I attended I had to use 90% gas 10% moonshine [corn fed fuel]. The only difference was the idle needed to be set a little higher.
Because you didn't buy your kit from a dealer [no support], but a box seller, you will have to keep trying until you stumble across a solution.
I find it interesting that you own 2 kits and still can't get it going.
By changing the motors you have elimanted many possibilities, and sure makes it look like carburetor problems.
Sounds like you have a leak somewhere in the intake system, as playing with the carburetors on both motors is the only common to both setups.
If you can get the motor to run, simply sparay WD40 around the manifold, gaskets, spacers, etc to see if the motor changes speed or idles faster or slower. This will let you know if it is an air leak.
If the kit was purchased from us we would have tested and replaced any items not working correctly [as would any other vendor on this site] ASAP.
Although you didn't buy from a vendor on this site, I will offer to test, tune, and adjust the carburetor
Please don't take this offer as bid to "get in your pocket" but as an offer to help, as I am sure your final cost won't be much. In fact I am guessing the shipping will be more than the labor to make the carburetors correct.
Please make sure the issues are carburetor related, as I don't want you to spend money on a non problem.
Have fun,
The Honda uses a small carb to self limit rpm it will only over rev if a larger carb is installed.
The Honda cam is molded nylon, not fiber,for it to jump time it will have to lose a tooth from the gear. I've never seen a Honda mini four stroke cam lose a tooth in 12 years of experience with them.
I have never seen any of the motors "jump" time, but was mentioned as a possible issue to what seems to be an unusual problem.
I have a 50 cc Honda motor with the rod blown off due to exessive RPM. It had the stock Honda carburetor. I don't know for sure if the Honda carburetor was on the motor when blown, as it was sent to me to rebuild. One of my test bikes has the Honda motor with the original carburetor [installed larger main jet], and it will easily over rev without a load. The Honda motor has the same size carburetor as the HS, except the main jet is one size smaller. The Honda motor ran too lean prior to the jet size increase, as the spark plug was completly white. After the jet change the plug is still close to too lean, as the plug still looks a light gray [not tan, brown, or black].
I too think the Honda motor is very well made, and should out last the HS motor, and I also agree it is slower than the HS. The Honda motor has a speed regulator system, whereas the HS does not [most remove it]. I agree with Honda being a great motor, and my experience with Honda covers a 40 year history under extreme conditions [raced against them in the early 70s].
The term "fiber" was used to describe the camshaft material, however I only used it to indicate the camshaft wasn't metal, and the HS camshaft may also be made from similar material as the Honda unit.
Have fun,
I have a 50 cc Honda motor with the rod blown off due to exessive RPM. It had the stock Honda carburetor. I don't know for sure if the Honda carburetor was on the motor when blown, as it was sent to me to rebuild. One of my test bikes has the Honda motor with the original carburetor [installed larger main jet], and it will easily over rev without a load. The Honda motor has the same size carburetor as the HS, except the main jet is one size smaller. The Honda motor ran too lean prior to the jet size increase, as the spark plug was completly white. After the jet change the plug is still close to too lean, as the plug still looks a light gray [not tan, brown, or black].
I too think the Honda motor is very well made, and should out last the HS motor, and I also agree it is slower than the HS. The Honda motor has a speed regulator system, whereas the HS does not [most remove it]. I agree with Honda being a great motor, and my experience with Honda covers a 40 year history under extreme conditions [raced against them in the early 70s].
The term "fiber" was used to describe the camshaft material, however I only used it to indicate the camshaft wasn't metal, and the HS camshaft may also be made from similar material as the Honda unit.
Have fun,
bideronit13
Member
Hey quinton in your first post you said, "it really warmed up".
Before I came back I was just running possable things that could be going on. Well you also said that the when you first run it after sitting a while it ran then cuts out.
I trully believe the engines oil is low, out or contaminated.
Before I came back I was just running possable things that could be going on. Well you also said that the when you first run it after sitting a while it ran then cuts out.
I trully believe the engines oil is low, out or contaminated.
bideronit13
Member
Im sorry I ment to say Mr Hydroseed
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