My FA50 is bogging down at 20 mph and won't go over 21mph. Vibrates and grumbles over 20 mph also surges to 24mph briefly while running real smooth for just a second. Not sure what's going on so want to play with the carb.
I don't have an owners manual. Any tips on making adjustments to the carb? It seems to run a bit rich and thought I would start with getting it a bit leaner. Carb is brand new. Don't know what screws are what on it.
Fuel and oil system was cleaned up after it was in storage for 20 years. Carb needed to be replaced. New plug. Idles good. Started right up but won't get up to top speed.
Any suggestions? Only had 1800 miles on it but sat since 1988.
Suzuki FA50 - bogging down at high speed
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Suzuki FA50 - bogging down at high speed
Last edited by Brinbane on Fri Jul 29, 2011 9:56 am, edited 1 time in total.
Re: Suzuki FA50 - leanning it out
Determined the 2 screws on the carb are idle and air. Left screw appears to be the idle as it definitely effects that. Right screw I'm assuming is an air jet as it's right in front of the intake of the air cleaner. Air screw has no effect on engine whatsoever that I can tell. I'm no longer thinking this is a lean/rich problem but something else.
Primary symptom is bogging down at 20 mph with surging briefly and periodically at that speed.
Primary symptom is bogging down at 20 mph with surging briefly and periodically at that speed.
Re: Suzuki FA50 - bogging down at high speed
don't know a thing about your scoot. but found this link
http://www.hondaspree.net/other/FA50_service_manual.pdf
I would look at the drive belt if it's been in storage that long, probably dried and cracked also check the roller weights
http://www.hondaspree.net/other/FA50_service_manual.pdf
I would look at the drive belt if it's been in storage that long, probably dried and cracked also check the roller weights
taz 50mm bbk, 51g. rollers,1500 c spring
24mm arreche, #20 pilot, E2 needle clip on lower groove
arreche air filter
Naruku intake, reeds & block
v8 pipe
stock gears
trail tech temp & rpm gauges
24mm arreche, #20 pilot, E2 needle clip on lower groove
arreche air filter
Naruku intake, reeds & block
v8 pipe
stock gears
trail tech temp & rpm gauges
Re: Suzuki FA50 - bogging down at high speed
the FA50 does not have a drive belt, it does have a chain drive. the FA50 is a fickle beast. 21-27 is all i have had outta mine. make sure your air filter is calean and oiled, is the carb clean through.? do plug chops do get you close, but sounds like your there. at treantland.com there is an exhaust for it, but alas its always sold out.
1986 honda spree(silver fox)
BBK
85 head
SB50 intake
SB50 reeds
taz gears
2.75X10 tires
2000 honda elite S
prodigy vari
2k grabber clutch springs
9:1 gears
jdm tail lite
1982 suzuki FA50
BBK
85 head
SB50 intake
SB50 reeds
taz gears
2.75X10 tires
2000 honda elite S
prodigy vari
2k grabber clutch springs
9:1 gears
jdm tail lite
1982 suzuki FA50
- swimmingfree
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Re: Suzuki FA50 - bogging down at high speed
a lady friend had one .. pain in my b u t t .. it was low oil in the case and burn up the plastic stuff but it did the same thing as your is so look and see were the oil is on the case hers was change drive not a belt..
swimmingfree
swimmingfree
handicap (dyslexia)
looking for
se50 crank...
SpreJunk 87elite in a spree body
ruckus variator , 3.5 tire , 1500 drive face spring , a 64 bbk ,
8 gram rollers, stock carb , after market air filter and 105 jet
looking for
se50 crank...
SpreJunk 87elite in a spree body
ruckus variator , 3.5 tire , 1500 drive face spring , a 64 bbk ,
8 gram rollers, stock carb , after market air filter and 105 jet
- swimmingfree
- CBR1000RR
- Posts: 3357
- Joined: Tue Jun 14, 2011 12:28 pm
- Location: mich.
Re: Suzuki FA50 - bogging down at high speed
a lady friend had one .. pain in my b u t t .. it was low oil in the case and burn up the plastic stuff but it did the same thing as your is so look and see were the oil is on the case hers was change drive not a belt..
swimmingfree
swimmingfree
handicap (dyslexia)
looking for
se50 crank...
SpreJunk 87elite in a spree body
ruckus variator , 3.5 tire , 1500 drive face spring , a 64 bbk ,
8 gram rollers, stock carb , after market air filter and 105 jet
looking for
se50 crank...
SpreJunk 87elite in a spree body
ruckus variator , 3.5 tire , 1500 drive face spring , a 64 bbk ,
8 gram rollers, stock carb , after market air filter and 105 jet