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 2012 Zuma 50F with Malossi BBK and Force 2 Issues 
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Newb
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Joined: Sun Jun 30, 2019 10:45 pm
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Post 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Im a new here, but I have been a zuma rider since the early 2000s.

In Oct. 2017, I had a Malossi Itech BBK along with a Force 2 fuel control and primary gear installed on my 2012 Zuma 50F. First thing I noticed when starting the scooter was that the start was laboured. It was not as crisp as in its stock form. While riding it home from the shop, the check engine light went on intermittently. The shop said that this was odd and could not reproduce the check engine light when I brought it in for inspection. Well, the scooter ran like this for a the remainder of the 2017 season and 2018 season. Just recently, I had trouble starting the scooter. The check red light on the force 2 would go one. Eventually, I would get it started. It would run a good while, then the scooter would die completely and I would not be able to get it started right away. The check engine and red temp light would go on. I would wait another 20 mins and try to start it up and it would work. Just now I went to start it up and it started up normally, but I am afraid to take it out for fear of getting stuck somewhere.

Have any of you experienced this issue? Could this be a bad ignition, fuel control module or fuel pump gone bad???


Sun Jun 30, 2019 11:07 pm
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Bronze Member
Bronze Member

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 493
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
I am not a 4 tsroke guy
Buruksuu has totally rebuilt his recently so I would comapre notes with him .
Here is one of his threads
viewtopic.php?f=50&t=28625

_________________
2004 Vinos Derestricted exhaust and variator stock carb with mikuni 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe derestricted stock variator stock carb 72 mikuni main one clip rich
45 mph still breaking in Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r 2008 zuma torque driver polini high speed variator 5.5 grams sliders malossi delta clutch yellow contra yellow clutch springs Stock Carb 82 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich (sold)


Mon Jul 08, 2019 10:15 am
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Scooterologist

Joined: Sun May 27, 2018 11:18 pm
Posts: 65
Location: Massachusetts
scooters and mods: 2013 Honda PCX 150 (RIP), 2015 Yamaha Zuma 50F, 2014 Honda Forza 300
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
arkangel140 wrote:
Im a new here, but I have been a zuma rider since the early 2000s.

In Oct. 2017, I had a Malossi Itech BBK along with a Force 2 fuel control and primary gear installed on my 2012 Zuma 50F. First thing I noticed when starting the scooter was that the start was laboured. It was not as crisp as in its stock form. While riding it home from the shop, the check engine light went on intermittently. The shop said that this was odd and could not reproduce the check engine light when I brought it in for inspection. Well, the scooter ran like this for a the remainder of the 2017 season and 2018 season. Just recently, I had trouble starting the scooter. The check red light on the force 2 would go one. Eventually, I would get it started. It would run a good while, then the scooter would die completely and I would not be able to get it started right away. The check engine and red temp light would go on. I would wait another 20 mins and try to start it up and it would work. Just now I went to start it up and it started up normally, but I am afraid to take it out for fear of getting stuck somewhere.

Have any of you experienced this issue? Could this be a bad ignition, fuel control module or fuel pump gone bad???

My guess is your fuel controller isn’t working correctly or wasn’t installed right. My scooter had a bad/low idle when I would start it before I installed my fuel controller. My Zuma would even stall at red lights from lack of fuel and I too had the red light come on when going up hills but it was very rare. Since I installed my fuel controller the scooter has ran smoothly without a hitch. My fuel controller was $175 from rolling wrench and well worth the money

_________________
2015 Titan Grey Yamaha Zuma 50F w/ dual headlight mod, restrictor washer removed from variator, Michelin Bopper 130/90-10 front and rear tires, Polini 66cc BBK, Beast Mode Fuel Tuner, Polini Air Filter, Polini Variator, 6.25g Rollers, Malossi 13/44 Gears, Malossi White Contra Spring, Koso 1000 RPM Clutch Springs
2013 Red Honda PCX 150 - Stock (Crashed into a deer August 2018 :( RIP)
2014 Red Honda Forza 300 - Stock


Tue Jul 09, 2019 10:22 pm
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Newb
Newb

Joined: Sun Jun 30, 2019 10:45 pm
Posts: 4
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Well fellow scooties, it appears the issue is with the stock fuel pump. Swapped out the whole fuel pump assembly and no problems since. No engine check lights or error codes of any kind. According to the wrench man, these fuel pumps do fail. Anyhow he says he has seen these pumps fail.

thanks for all your input?


Sun Jul 14, 2019 10:05 am
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Joined: Wed Mar 16, 2011 9:25 pm
Posts: 736
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Glad this was resolved. Now, for the real important stuff. You're running the Malossi, and Buru went with the Polini. Which is better in performance and value for the money? Only way to answer that is to compare results. What is your top speed looking like? Acceleration?

I'm new to the 4t rides, but it seems to me that we should do what we can to make this place as good of a resource for the new 4t models as it already is for the 2t bikes.

_________________
Stock '05 Zuma - in the wild somewhere.
2015 Zuma - Stock. For now.


Mon Jul 15, 2019 3:57 pm
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Scooterologist

Joined: Sun May 27, 2018 11:18 pm
Posts: 65
Location: Massachusetts
scooters and mods: 2013 Honda PCX 150 (RIP), 2015 Yamaha Zuma 50F, 2014 Honda Forza 300
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
pat-daddy wrote:
Glad this was resolved. Now, for the real important stuff. You're running the Malossi, and Buru went with the Polini. Which is better in performance and value for the money? Only way to answer that is to compare results. What is your top speed looking like? Acceleration?

I'm new to the 4t rides, but it seems to me that we should do what we can to make this place as good of a resource for the new 4t models as it already is for the 2t bikes.

Well I always have a thirst for more lol. If there’s something better and bigger than I want it. Soooo I might be buying the 75.6cc kit by SSP-G or the TPR 75cc kit. Both are around $450 but not sure which one to get. I’ll be selling my polini big bore kit to my buddy who also has a 2015 Zuma FX

_________________
2015 Titan Grey Yamaha Zuma 50F w/ dual headlight mod, restrictor washer removed from variator, Michelin Bopper 130/90-10 front and rear tires, Polini 66cc BBK, Beast Mode Fuel Tuner, Polini Air Filter, Polini Variator, 6.25g Rollers, Malossi 13/44 Gears, Malossi White Contra Spring, Koso 1000 RPM Clutch Springs
2013 Red Honda PCX 150 - Stock (Crashed into a deer August 2018 :( RIP)
2014 Red Honda Forza 300 - Stock


Mon Jul 15, 2019 6:17 pm
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Newb
Newb

Joined: Sun Jun 30, 2019 10:45 pm
Posts: 4
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
I will strap the GPS on and give it a run. I will report top speed then. Acceleration .... Well...Its a lot better than stock for sure :D :D :D


Tue Jul 16, 2019 9:04 am
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Joined: Wed Mar 16, 2011 9:25 pm
Posts: 736
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Burukkusu wrote:
pat-daddy wrote:
Glad this was resolved. Now, for the real important stuff. You're running the Malossi, and Buru went with the Polini. Which is better in performance and value for the money? Only way to answer that is to compare results. What is your top speed looking like? Acceleration?

I'm new to the 4t rides, but it seems to me that we should do what we can to make this place as good of a resource for the new 4t models as it already is for the 2t bikes.

Well I always have a thirst for more lol. If there’s something better and bigger than I want it. Soooo I might be buying the 75.6cc kit by SSP-G or the TPR 75cc kit. Both are around $450 but not sure which one to get. I’ll be selling my polini big bore kit to my buddy who also has a 2015 Zuma FX


Where are those 75cc kits available?

_________________
Stock '05 Zuma - in the wild somewhere.
2015 Zuma - Stock. For now.


Tue Jul 16, 2019 2:53 pm
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Scooterologist

Joined: Sun May 27, 2018 11:18 pm
Posts: 65
Location: Massachusetts
scooters and mods: 2013 Honda PCX 150 (RIP), 2015 Yamaha Zuma 50F, 2014 Honda Forza 300
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
pat-daddy wrote:
Burukkusu wrote:
pat-daddy wrote:
Glad this was resolved. Now, for the real important stuff. You're running the Malossi, and Buru went with the Polini. Which is better in performance and value for the money? Only way to answer that is to compare results. What is your top speed looking like? Acceleration?

I'm new to the 4t rides, but it seems to me that we should do what we can to make this place as good of a resource for the new 4t models as it already is for the 2t bikes.

Well I always have a thirst for more lol. If there’s something better and bigger than I want it. Soooo I might be buying the 75.6cc kit by SSP-G or the TPR 75cc kit. Both are around $450 but not sure which one to get. I’ll be selling my polini big bore kit to my buddy who also has a 2015 Zuma FX


Where are those 75cc kits available?

eBay has the SSP-G one for $430. You just type Zuma 50f big bore and it will come up. Steady garage has the TPR one but that doesn’t come with the piston. Looks of better quality, though.

_________________
2015 Titan Grey Yamaha Zuma 50F w/ dual headlight mod, restrictor washer removed from variator, Michelin Bopper 130/90-10 front and rear tires, Polini 66cc BBK, Beast Mode Fuel Tuner, Polini Air Filter, Polini Variator, 6.25g Rollers, Malossi 13/44 Gears, Malossi White Contra Spring, Koso 1000 RPM Clutch Springs
2013 Red Honda PCX 150 - Stock (Crashed into a deer August 2018 :( RIP)
2014 Red Honda Forza 300 - Stock


Tue Jul 16, 2019 4:31 pm
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Bronze Member
Bronze Member

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 493
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Pat
Go for it We need a few more guides on how to build these 4 strokes to 50 mph plus machines.
Seems like the big 3 are bbk ,gears ,and unlimited cdi if they are available .

We all might eventually modding 4 strokes for fun.

How much has your guys mpg dropped with the extra power ?

On a 2 stroke I went from 70 mpg and 40 mph with bbk pipe and gears 55mph takes me down 58 mpg.

_________________
2004 Vinos Derestricted exhaust and variator stock carb with mikuni 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe derestricted stock variator stock carb 72 mikuni main one clip rich
45 mph still breaking in Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r 2008 zuma torque driver polini high speed variator 5.5 grams sliders malossi delta clutch yellow contra yellow clutch springs Stock Carb 82 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich (sold)


Tue Jul 16, 2019 7:36 pm
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Bronze Member
Bronze Member

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 493
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Arkangel
Top speed and Rpms at different speeeds would be helpful if you have a Tach .
Pat and I are both curious to see what the limits to modding these are .

_________________
2004 Vinos Derestricted exhaust and variator stock carb with mikuni 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe derestricted stock variator stock carb 72 mikuni main one clip rich
45 mph still breaking in Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r 2008 zuma torque driver polini high speed variator 5.5 grams sliders malossi delta clutch yellow contra yellow clutch springs Stock Carb 82 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich (sold)


Tue Jul 16, 2019 7:49 pm
Profile
Scooterologist

Joined: Sun May 27, 2018 11:18 pm
Posts: 65
Location: Massachusetts
scooters and mods: 2013 Honda PCX 150 (RIP), 2015 Yamaha Zuma 50F, 2014 Honda Forza 300
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
arkangel140 wrote:
I will strap the GPS on and give it a run. I will report top speed then. Acceleration .... Well...Its a lot better than stock for sure :D :D :D

Arkangel do you have stock gears? What’s your top speed at flat? I’m thinking the 66cc kit isn’t powerful enough to push my 13/44 straight gears. I’m thinking of getting a 75.6cc and hoping that kit is powerful enough to push the gears. My friend has a 60cc kit in his and stock gears with 5g Sliders and he goes 47 mph gps on flat but hits a rev limiter at 47.5 mph which sucks lol

_________________
2015 Titan Grey Yamaha Zuma 50F w/ dual headlight mod, restrictor washer removed from variator, Michelin Bopper 130/90-10 front and rear tires, Polini 66cc BBK, Beast Mode Fuel Tuner, Polini Air Filter, Polini Variator, 6.25g Rollers, Malossi 13/44 Gears, Malossi White Contra Spring, Koso 1000 RPM Clutch Springs
2013 Red Honda PCX 150 - Stock (Crashed into a deer August 2018 :( RIP)
2014 Red Honda Forza 300 - Stock


Tue Jul 16, 2019 8:38 pm
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Newb
Newb

Joined: Sun Jun 30, 2019 10:45 pm
Posts: 4
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Im running the Malossi gears...top speed is tough to say without my GPS cuz the needle is literally buried and can go no further. Unfortunately I do not have a tach and I am really a novice when it comes to mods. My wrechman at CaseyMoto did all the work for me. I ll get the GPS on the scoot and get you guys my top speed.

arky


Wed Jul 17, 2019 11:02 am
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Scooterologist

Joined: Sun May 27, 2018 11:18 pm
Posts: 65
Location: Massachusetts
scooters and mods: 2013 Honda PCX 150 (RIP), 2015 Yamaha Zuma 50F, 2014 Honda Forza 300
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
arkangel140 wrote:
Im running the Malossi gears...top speed is tough to say without my GPS cuz the needle is literally buried and can go no further. Unfortunately I do not have a tach and I am really a novice when it comes to mods. My wrechman at CaseyMoto did all the work for me. I ll get the GPS on the scoot and get you guys my top speed.

arky

Malossi gears are straight cut 13/44 like mine. My needle also gets buried but that’s only down hill. Is your needle buried on flat? Mine goes a little past 45 on flat. I’d like it to be buried on flat ground but never has been. Maybe the polini kit isn’t as powerful as the malossi kit? Which doesn’t make sense because they’re both 66cc kits

_________________
2015 Titan Grey Yamaha Zuma 50F w/ dual headlight mod, restrictor washer removed from variator, Michelin Bopper 130/90-10 front and rear tires, Polini 66cc BBK, Beast Mode Fuel Tuner, Polini Air Filter, Polini Variator, 6.25g Rollers, Malossi 13/44 Gears, Malossi White Contra Spring, Koso 1000 RPM Clutch Springs
2013 Red Honda PCX 150 - Stock (Crashed into a deer August 2018 :( RIP)
2014 Red Honda Forza 300 - Stock


Wed Jul 17, 2019 1:02 pm
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Bronze Member
Bronze Member

Joined: Fri Aug 31, 2018 5:18 pm
Posts: 493
Location: Fox Valley Wisconsin
scooters and mods: 2 2004 Vinos 2004 Zuma
Post Re: 2012 Zuma 50F with Malossi BBK and Force 2 Issues
Your cell phone has apps that will gps your speed .
Most of them will be under speedometer in the app store and are free .
Tachs on amazon can be bought for 20 bucks for a cheap one or 40 bucks for the trail tech.
They help alot with dialing in the trans

_________________
2004 Vinos Derestricted exhaust and variator stock carb with mikuni 70 main jet needle down 1 clip 40 mph
Athena Sport BBK waiting to go on

2004 Vino Malossi sport 70cc Malossi Wild Lion pipe derestricted stock variator stock carb 72 mikuni main one clip rich
45 mph still breaking in Michelin S1 90/90/10 rear tire Michelin S1 3" x 10 up front

2004 Zuma Malossi sport 70 cc Technigas next r 2008 zuma torque driver polini high speed variator 5.5 grams sliders malossi delta clutch yellow contra yellow clutch springs Stock Carb 82 main jet 46 pilot jet needle 1 clip rich stock athena 14/42 gears 11 to 1 final ratio 56 mph

2005 Eton Beamer (Taiwan Zuma Clone) Airsal sport 70cc 9200 peak rpm top speed 42 77.5 mikuni jet needle 1 clip rich (sold)


Wed Jul 17, 2019 5:31 pm
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