Question about 1982 Suzuki GSX 400 FS impulse

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Choke on a suzuki gs1100 gk /mikuni 34mm carbs

When i apply the choke and start the bike, choke works good, but when the bike is warmed up the choke will not open completely. if i push on the end of the choke rod(four carbs connected together with common rod). rpms will go back to idle but will not stay there. when the throttle is moved or it seems that just the vibration of the engine will apply the choke a small amount( will raise rpm's to about 2k ) I can not seem to find any reason for it. thanks, ron

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  • Anonymous Mar 26, 2014

    will start and idle if only if it is choked. unchoked it will barely start. both ways it will stall the moment i try to turn the throttle. all spark plugs are getting a spark. fuel is good. what should i do?

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Cables too tight , poor lubrication of choke and or throttle cable

Posted on Dec 16, 2008

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Posted on Jan 02, 2017

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My 1995 suzuki rf600r


That bike has 4) 36mm Mikuni carbs. Most likely they are stopped up. If you have been running U.S. Fuel with ethanol added this is not good for the carbs. Or most likely it was sitting for the winter, and the carbs got stopped up. If you have the carbs cleaned out, this will fix your problem. Keep me updated, and good luck. P.S. if a shop does this work it will be expensive, its not a hard job just time consuming.

Mar 26, 2014 | 1995 Suzuki RF 600 R

1 Answer

1999 Suzuki GSX-R 600 hard to start cold


Hi, Anonymous before you start it in the morning, pull the spark plugs and sniff them. Do they smell like gasoline? Are they wet? If so, you may have fuel leaking past the needle and seat in the carburetor and flooding the cylinders.
Use a voltmeter on the battery an hour after you shut the bike off. It should be at least 12.6 volts. Check it again in the morning. It should still be 12.6 volts or more. If not, something could be drawing current when the key is off.
If it's a carbureted bike and the ambient temperature is warm, you may be over-using your choke/enrichner. Try cranking it with the choke turned off first and then try half-choke, and then full choke. If you start with too much choke it will flood. After it starts, shut the choke off after 15 - 30 seconds and then use the throttle to keep the bike running until it warms up. Over-using the choke will soot up your spark plugs.
A fresh set of properly gapped spark plugs can make a lot of difference in how easily a bike starts.
Engines need a richer fuel mixture when they're cold. An intake leak can also cause hard starting because it leans out the air/fuel mixture.
After you get the bike started, spray some WD-40 or carb cleaner around the carburetor intake manifold seals. If the RPMs change, you have an intake leak.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
starts hard in the cold Suzuki GSX Motorcycle Forums Gixxer com
98 suzuki gsxr 600 srad cold start part 2 of part one
Suzuki 2001 GSX R600 Service Manual
https://www.partsfish.com/page/oem-parts-for-suzuki
http://mybikemanuals.com/suzuki/suzuki-gsx-owners-manuals

Nov 06, 2013 | 1999 Suzuki GSX-R 600

1 Answer

1997 Suzuki GSX-R 600 is hard to start cold


Hi, Anonymous before you start it in the morning, pull the spark plugs and sniff them. Do they smell like gasoline? Are they wet? If so, you may have fuel leaking past the needle and seat in the carburetor and flooding the cylinders.
Use a voltmeter on the battery an hour after you shut the bike off. It should be at least 12.6 volts. Check it again in the morning. It should still be 12.6 volts or more. If not, something could be drawing current when the key is off.
If it's a carbureted bike and the ambient temperature is warm, you may be over-using your choke/enrichner. Try cranking it with the choke turned off first and then try half-choke, and then full choke. If you start with too much choke it will flood. After it starts, shut the choke off after 15 - 30 seconds and then use the throttle to keep the bike running until it warms up. Over-using the choke will soot up your spark plugs.
A fresh set of properly gapped spark plugs can make a lot of difference in how easily a bike starts.
Engines need a richer fuel mixture when they're cold. An intake leak can also cause hard starting because it leans out the air/fuel mixture.
After you get the bike started, spray some WD-40 or carb cleaner around the carburetor intake manifold seals. If the RPMs change, you have an intake leak.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
starts hard in the cold Suzuki GSX Motorcycle Forums Gixxer com 98 suzuki gsxr 600 srad cold start part 2 of part one Suzuki 2001 GSX R600 Service Manual https://www.partsfish.com/page/oem-parts-for-suzuki http://mybikemanuals.com/suzuki/suzuki-gsx-owners-manuals

Mar 16, 2013 | 1997 Suzuki GSX-R 600

1 Answer

My 91 gsxr 750 will idle up and stay up. disconnected the throttle cable and manually revved it up an it still stays up. it will come down if it feels like it also when i apply a load or choke. the bike...


Sounds like carbs need a good clean out. The 1991 model GSXR was not Electronic Fuel Injected. A model this old may also be subject to the carbs being worn out and letting in unmetered air around the screws etc, which may be keeping the revs up at idle and causing a lean idle.
Applying load will source fuel from the next jet and hide the problem. Applying choke holds back some air which will help as it sounds like too much air at idle. This will not help as much when bike is warm.
Bottom line is your carbs need a good clean and service and maybe if they are leaking air they might need to be replaced.

Sep 03, 2017 | Suzuki Motorcycles

1 Answer

My bike turns on when choke cable is engage and 5 minutes of warming disengaging the choke cable the bike shuts off.. Its a 1993 suzuki bandit gsf 400..


You may have a vacuum leak. Your carbs may just need be adjusted and synced. I would not be surprised if the carbs have been out of sync since day one.

Sep 15, 2011 | Suzuki GS 400 E Motorcycles

1 Answer

Hi, after riding through flood water the motor starts but only if no throttle is applied, as soon as you do the engine cuts out.tried some choke and tried idling for enough time to warm up , no...


Water in the carb float bowl? Remove the carb then remove the float bowl. Use spray carb cleaner to clean the carb. Pay special attention to the main jet.

Sep 11, 2011 | Suzuki Terra 125 Motorcycles

1 Answer

Cold starts 1985 plymouth colt 4Dr dl sedan 1.5 L


If yours is a Mikuni carb, here's what I did to make my choke work manually on a 1986 Plymouth Voyager:

http://imhdd.ms11.net/CHOKE/choke.html

Mar 29, 2009 | 1985 Plymouth Colt

2 Answers

Rebuilt carbs-starts and idles but wont rev up without choke on


sounds like the main jets are partly pluged, you must remve all brass jets and seats including needle jet and its slide soak in carb cleaner and blow out with compressed air only.. hold up to bright light to verify if all are clean. jim

Mar 29, 2009 | 1984 Suzuki GS 700 ES

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