GT250 only runs on choke
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
- jabcb
- Moto GP
- Posts: 4245
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: GT250 only runs on choke
Have not had this problem before.
My guess would be that you have a number of issues that interact to produce the rev problem.
My guess would be that you have a number of issues that interact to produce the rev problem.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
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- Yeah Man, the Interstate
- Posts: 508
- Joined: Sat Sep 05, 2015 3:14 pm
- Country: us
- Suzuki 2-Strokes: GT
- Location: southeast pa
Re: GT250 only runs on choke
Is this while riding,under load ? Did you check for air leaks on carbs and engine ?
If it runs away and won't shut off with ignition switch, put in gear and stall it with brake.
76 GT185
77 GT250
77 GT380
76 GT500
73 GT550
73 GT750
74 GT750
71 T250 scrambler
75 T500 cafe
77 GT250
77 GT380
76 GT500
73 GT550
73 GT750
74 GT750
71 T250 scrambler
75 T500 cafe
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- Yeah Man, the Interstate
- Posts: 590
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- Country: WALES
- Suzuki 2-Strokes: suzuki gt 550j
- Location: Wales
Re: GT250 only runs on choke
I know its been said but that seems to me like a sticking throttle valve. You say that you have checked that but it has happened to me at least twice. I found out that the little pin that makes sure the throttle valve faces the right way had come out and the valve turned around on itself and caused the symptoms you describe.
Look here
https://www.kettleclinic.co.uk/kcforum/ ... ttle+valve
Look here
https://www.kettleclinic.co.uk/kcforum/ ... ttle+valve
98 carb Blackbird and GT550j
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- On the street
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- Joined: Tue Jun 02, 2020 12:14 am
- Country: United Kingdom
- Suzuki 2-Strokes: Suzuki gt250 B 1977
Re: GT250 only runs on choke
Thanks for your thoughts, that's given me a few things to look at
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- To the on ramp
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- Location: New Zealand
Re: GT250 only runs on choke
The best way to check carb slides for possible sticking is to take air cleaner off and do the ice cream stick trick.also fuel air screw to be one and a half turns out.
CB360T
TT250
TT250
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- On the street
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- Joined: Sun Mar 22, 2020 1:05 pm
- Country: United States
- Suzuki 2-Strokes: 1971 t500
Re: GT250 only runs on choke
slides are getting stuck. I had the same issue. Check the routing of your throttle cable to the splitter (oil, throttle). Lube the cables and try to make sure the slides do not get stuck and they are seated.
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- On the street
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- Joined: Tue Jun 02, 2020 12:14 am
- Country: United Kingdom
- Suzuki 2-Strokes: Suzuki gt250 B 1977
Re: GT250 only runs on choke
Hi folks, I'm out of action for a while, but when I get to the bottom of it I will post what the problem was.
Thanks for all your advice.
Al
Thanks for all your advice.
Al
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- On the street
- Posts: 13
- Joined: Tue Jun 02, 2020 12:14 am
- Country: United Kingdom
- Suzuki 2-Strokes: Suzuki gt250 B 1977
Re: GT250 only runs on choke
Okay so I removed the air filter and rubber manifold, looked into the carbs and they were coated in brown smeg removed the carbs and float bowls and they look like someone's taken a s**t in them. I thought I had cleaned the fuel tank enough but obviously not, so I've bought some kreem tank cleaner and liner, also getting the carbs ultrasonic cleaned,
So hopefully that'll do the trick
So hopefully that'll do the trick
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- Still in the Driveway
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- Joined: Mon Jun 07, 2021 3:24 pm
- Country: England
- Suzuki 2-Strokes: GT250 1976
Re: GT250 only runs on choke
Did it do the trick?
- Alan H
- Moto GP
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Re: GT250 only runs on choke
Last active March 2021, so the chance of a reply is minimal.
I never expect much from now posters who can't be bothered to say hello and do a basic intro of where they are from and a bit of biking experience.
I never expect much from now posters who can't be bothered to say hello and do a basic intro of where they are from and a bit of biking experience.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
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- Yeah Man, the Interstate
- Posts: 630
- Joined: Fri Aug 11, 2017 7:09 am
- Country: england
- Suzuki 2-Strokes: several gt250 ramairs
Re: GT250 only runs on choke
brown crap everywhere? that sounds like somebody has lined the inside of the fuel tank with original petseal and it's now leeching out and through the carbs and engine. i know this happens from experience, which is why i only ever use por15 nowadays. brilliant stuff
cheers, dd.
cheers, dd.
GTS250 road registered. TS250 engine, Ramair frame.
GT250 big bang road registered. Both pistons fire the same time. USD forks.
GT285 road registered. Overbored - 58mm and TS125 +2 pistons fitted.
GT10 road registered. '65 T10 engine, GT250 frame.
GT250 big bang road registered. Both pistons fire the same time. USD forks.
GT285 road registered. Overbored - 58mm and TS125 +2 pistons fitted.
GT10 road registered. '65 T10 engine, GT250 frame.