Spree Bogs down with throttle

[a1parrothead]

Hello all,
My 1985 Honda Spree is driving me crazy. It will start perfectly, idle fine, but when you give it throttle it bogs down and will die unless you let off. Sounds like the carb, right? But.... i have cleaned it until its spotless. All the jets are perfect. I am POSITIVE it is clean. It has a new plug (in fact I have tried it with multiple plugs), compression of almost 120psi. Strong spark. I have also removed and cleaned the exhaust port, and let the exhaust sit with Coke in it and flushed it. It seems to be very clear.
Heres the weird part. I can sometimes ride it and it will run perfect for about 5 minutes. Then it does the same thing again. Real annoying. I have checked the fuel pump. It seems to be fine. I have a fuel filter on it so I can also see that fuel is in the filter.
What is going on? Also, can someone explain the drive part of this scooter? Does it have oil in it, belts, clutches? I have never had the side cover off.
Thanks, Jeff

[88speedracercivic]

Hello all,
My 1985 Honda Spree is driving me crazy. It will start perfectly, idle fine, but when you give it throttle it bogs down and will die unless you let off. Sounds like the carb, right? But.... i have cleaned it until its spotless. All the jets are perfect. I am POSITIVE it is clean. It has a new plug (in fact I have tried it with multiple plugs), compression of almost 120psi. Strong spark. I have also removed and cleaned the exhaust port, and let the exhaust sit with Coke in it and flushed it. It seems to be very clear.
Heres the weird part. I can sometimes ride it and it will run perfect for about 5 minutes. Then it does the same thing again. Real annoying. I have checked the fuel pump. It seems to be fine. I have a fuel filter on it so I can also see that fuel is in the filter.
What is going on? Also, can someone explain the drive part of this scooter? Does it have oil in it, belts, clutches? I have never had the side cover off.
Thanks, Jeff

maybe the bystarter is sticking?

[toad772]

Hello all,
My 1985 Honda Spree is driving me crazy. It will start perfectly, idle fine, but when you give it throttle it bogs down and will die unless you let off. Sounds like the carb, right? But.... i have cleaned it until its spotless. All the jets are perfect. I am POSITIVE it is clean. It has a new plug (in fact I have tried it with multiple plugs), compression of almost 120psi. Strong spark. I have also removed and cleaned the exhaust port, and let the exhaust sit with Coke in it and flushed it. It seems to be very clear.
Heres the weird part. I can sometimes ride it and it will run perfect for about 5 minutes. Then it does the same thing again. Real annoying. I have checked the fuel pump. It seems to be fine. I have a fuel filter on it so I can also see that fuel is in the filter.
What is going on? Also, can someone explain the drive part of this scooter? Does it have oil in it, belts, clutches? I have never had the side cover off.
Thanks, Jeff

Spree do not have fuel pump. As for the "drive part" it has a belt and a cent clutch.

[wood10214]

did

I have checked the fuel pump.

did you mean the oil pump?

[Bear45-70]

AIRBOX! Is it in place with a good air filter in it? This is exactly what my 1985 Spree does with the airbox off or even without the air filter element in place.

[toad772]

AIRBOX! Is it in place with a good air filter in it? This is exactly what my 1985 Spree does with the airbox off or even without the air filter element in place.

I had that issue with a half hanging off bystarter and a loose * airbox.




I fixed both those issues but have no gas to see if it fixed the problem(Getting some tomorrow was to lazy to make a trip just for gas today).

[a1parrothead]

O.K., not a fuel pump, but a vacuum operated fuel valve. Does anyone know (or can you test yours) how many volts should be going to the bystarter? I checked mine. I removed the bystarter wires and put my meter on the wires it plugs into. I found 2 things: First it only had power when the bike was being cranked over (my bike never started so I could not tell if it had constant power once it was running), and the second thing was it only had about .26 volts. So... I need to know when it should be getting power and how much. When I hook my bystarter to a 12V source it extends fine. But, I am not sure it is getting the power it needs when its hooked up to the scooter to extend properly.
Jeff

[Bear45-70]

O.K., not a fuel pump, but a vacuum operated fuel valve. Does anyone know (or can you test yours) how many volts should be going to the bystarter? I checked mine. I removed the bystarter wires and put my meter on the wires it plugs into. I found 2 things: First it only had power when the bike was being cranked over (my bike never started so I could not tell if it had constant power once it was running), and the second thing was it only had about .26 volts. So... I need to know when it should be getting power and how much. When I hook my bystarter to a 12V source it extends fine. But, I am not sure it is getting the power it needs when its hooked up to the scooter to extend properly.
Jeff

The bystarter is operated by AC voltage from the stator only when the engine is rotating. That's so if you forget and leave the key on the bystarter will still be in the enrichment position when you try to start the engine. The faster the motor rotates the higher the voltage will be. Yours is fine.

[toad772]

Well my scooter no longer has a bog down issue now that I have fixed the airbox and removed the bystarter.

[HGbrokenCoS]

Mine does the same thing. Does the air box have to have a cover on it because mine didnt have one on there when i got it a few weeks ago. I haven't checked the bystsrter yet.

[patthesoundguy]

The missing airbox cover is totally your problem. You need a cover and hopefully the cover has the gasket intact. The gasket is still available though. Replacing that cover is going to be the best way to fix the problem. Unless you restrict the intake to match what the air box does or upjet to make up for the change you risk engine seizure if you continue to drive that spree in its current state. The best way is to return the airbox to the stock setup.