Questions tagged [choke]

The choke valve adjusts air pressure through restricting an intake manifold to deliver a richer air/fuel mixture. It is typically on carburetor engines and applied during a cold start.

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1 answer
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Does leaving the choke closed increase fuel consumption

I ran out of fuel using my outboard engine the other day, when I had checked the tank beforehand and thought I saw plenty of fuel. I had forgotten to open the choke for twenty minutes or so. My ...
Nic's user avatar
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7 votes
1 answer
1k views

Rough idle while warming up, goes away after a tiny rev

I have an 84 Ranger 2.8L V6. It seem that nearly every time I start the car, it has a pretty rough idle while it warms up. If I just rev the engine a little bit for a second and release (just barely ...
Kevin Evans's user avatar
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6 votes
2 answers
5k views

Basic operation of a choke valve

As user Steve Matthews pointed out on my last question Car interior rattles on idle The ideal use of a coke is "Use the choke until the car warms up properly. You can reduce the amount of choke ...
EChan42's user avatar
  • 1,005
6 votes
2 answers
43k views

Testing automatic choke on a scooter

My Peugeot Speedfight 2 is having trouble starting when cold. I took down the carburetor and cleaned it. The spark plug is also pretty new. I've read that automatic choke can be faulty but I don't ...
ragezor's user avatar
  • 63
5 votes
2 answers
2k views

Hero passion pro India Bike is only get started on choke

i am having hero passion pro new model in the morning when i start my bike with kick i have on the choke the bike started without no hesitation but when i pull of the choke after 15 seconds and ...
faruk mahir's user avatar
5 votes
2 answers
36k views

What is the choke on off position in passion xpro?

Hi am greatly confused with the on/off position of choke in Hero Passion XPro (2014 model). I am able to set it in three different positions Vertical (the choke switch pointing downwards) (image ...
AAG's user avatar
  • 51
4 votes
1 answer
222 views

If I start a previously unfueled small engine, do I keep choke on for first pull only or until it starts?

I purchased a small engine inverter generator. It obviously has a carburetor and a choke valve. I just put in the oil and oiled the foam air filter element and am ready to break in the generator with ...
juhist's user avatar
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4 votes
1 answer
1k views

Is it OK to run a trimmer without the plate-filter support?

I've discovered the answer to this question by unfortunate experience, so I'm sharing it... I have an XT200 Weedeater Trimmer. In between the carburetor and the air filter is a thin metal plate ...
anonymous2's user avatar
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3 votes
1 answer
2k views

Hero Passion Pro - Choke Issues

I have a Hero Passion Pro Motorcycle. It does not get started when the choke is on. It does start when the choke is turned off? The engine produces a disturbing noise and smoke goes out when the ...
user18855's user avatar
3 votes
1 answer
2k views

Does opening the throttle mean a leaner fuel to air mixture for starting?

As per the title, if I'm starting a motorcycle or lawnmower or something similar with a carburetor and I know the mixture is too rich, does opening the throttle lean the mixture out? I've got a ...
Hellreaver's user avatar
2 votes
2 answers
5k views

Why it is necessary to use choke for starting bike?

I purchased Honda CB Shine 125 cc, When I start directly it not start, when I used choke and start bike it start and I on the choke for 10 to 15 secs(The choke case is always happen in morning time in ...
Gourav Joshi's user avatar
2 votes
2 answers
4k views

Engine Does Not Run with Choke off (Honda CB750)

I have a 1972 Honda CB750 that I have been working on and have a question about running the engine with the choke off. I originally posted this question (1972 Honda CB750 Motorcycle Choke) and it ...
MillerMedia's user avatar
2 votes
1 answer
687 views

1972 Honda CB750 Motorcycle Choke

First, I have to preface that I am a complete newcomer to motorcycles. I don't have any people in my circle of friends that ride so I'm just diving in and learning and asking questions on here since I ...
MillerMedia's user avatar
2 votes
2 answers
4k views

Can choke on a motorcycle compensate for dirty carbs without causing fouling?

My 92 Katana 600 dies on idle with the choke off, no matter how warm the engine. I've found that leaving it on 1/2 - 3/4 choke gives it a good balance. I know that choke can cause fouling and carbon ...
user6086585's user avatar
1 vote
1 answer
3k views

how to start a older car with an automatic choke?

Sometimes my car will not start the first time. I press throttle all the way down then turn the key on but no start how to I start an older car with an automatic choke?
Ron's user avatar
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1 vote
1 answer
6k views

I get confused to understand the choke on or off position of Yamaha Saluto RX

I am unable to understand which is the choke off position (up lever or down lever)
aditya's user avatar
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1 vote
1 answer
3k views

While riding bike , Pressing clutch turn off the motorcycle

My Motorcycle Suzuki sling shot, When riding the motorcycle at the traffic time when pressing the clutch it suddenly turn off the motorcycle But when put ON the choke and riding motorcycle it ...
User6667769's user avatar
1 vote
0 answers
28 views

Engine only runs on full choke

Ford 390 Autolite carburetter Starts ok but only runs on full choke the two fuel needles don’t seem to make a difference. ( they used to be ok before cleaning). This carburettor did work ok, but I ...
Neil Willis's user avatar
1 vote
1 answer
215 views

Scooter wont start or idle without using choke

2007ish Honda activa doesn't start or idle without using the choke. It also bogs down or shuts off when giving 25% throttle (but runs fine with choke, tho it isn't good for the scooty) . I have tried ...
Knight King's user avatar
1 vote
0 answers
48 views

SBC electric choke issue

I have a 1969 Chevrolet C10 1/2 ton pickup with stock 350 small block engine. Don’t know much about internals of engine as I purchased the truck with engine in it and not much info. Had a Quadra jet ...
Bryan Allen's user avatar
1 vote
0 answers
19 views

Engine stopping as if no fuel most of the times

I have a Pulsar 150 2005 model and it has done 225000 kilometers. It had no problems what so ever as of now until the recent showers. It starts runs for sometime and then turns off as it there is no ...
Arun Prasad J.S.'s user avatar
1 vote
0 answers
113 views

What would cause a weed-eater to suddenly only run on partial choke?

As stated in question - was starting and running beautifully until this past usage. Same fuel I've been using and same storage method. Suddenly will only run on mid-choke. Even after using for 10 ...
NathanLite's user avatar
0 votes
3 answers
2k views

How to raise front of car safely?

i need to get under front of car for oil change and some exhaust work. Do I just put front on axle stands and what do I do about back tyres? The might roll either way right? so do I put chock ...
James Wilson's user avatar
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0 votes
1 answer
350 views

About choke in two wheeler [duplicate]

I have purchased new scooty activa 4g in dec . I had kept on choke around 120km and it takes so much fuel . I had filled fuel around 6.8 litre(₹500 )and it runs 147km and still have fuel around 1litre ...
Abhishek uniyal's user avatar
0 votes
1 answer
512 views

1982 Virago 750 starting problem; not starter problem but carburetor problem

Recently restored my 82 Virago which has ~80,000 miles. Have been around states 3 times. Ever since new, to start cold I would only have to engage choke lever all the way and give no turns on the ...
user57683's user avatar
0 votes
1 answer
88 views

Turn push/pull motion into up/down?

I don't know if this is the right place to ask, but I have an RC 2 stroke engine with a choke with an arm that requires up/down motion to open/close. The problem is I can't place a servo below, so I ...
Dacobi's user avatar
  • 103