Question about Garden

1 Answer

1950's boat with chevy 6 cyl duel carbs (Rochester BC) w/auto choke on primary carb. will only start when fully choked (hot or cold). had to adjust choke to approx. 3/4 closed when hot runs ok but burns a ton of fuel. any suggestions? please.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 224 Answers

Carbs need rebuilt to clean the jets and and passages

Posted on Oct 17, 2013


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 109 Answers

SOURCE: Snapper SS312 weed eater. Cranks when primed but won't run

I am sorry to say this, but the compression for that type of engine should be atleast 120 psi. Remove the muffler and look at the cylinder, it is scarred beyond repair.

Posted on Apr 22, 2009

  • 71 Answers

SOURCE: stihl line trimmer starts but won't stay running

check to make sure your kill switch is not shorting and you have the right gap from the coil to the flywheel also if the flywheel sheer pin is damaged in the least this will cause a multitude of problems... it is the timing pin and must be in good shape not damaged or sheered ..any way reply to and i will try to help you through this.... DALE good luck and will wait for reply..

Posted on Aug 29, 2009

  • 62 Answers

SOURCE: poulan ppb 250 weed eater, only runs with choke on,


Posted on Sep 25, 2009

  • 1 Answer

SOURCE: It won't run prorerly

I had the same problem. I took it to the dumpster and used my old echo that I purchased in 1986. The Homelite was 2 years old. My sugesstion is to dump it.

Posted on Apr 09, 2010

  • 36 Answers

SOURCE: Craftsman 25cc weedwacker (358.791030). Zama

need to adjust the high sscrew. i do mine in 1/4 turns. start machine, full throttle, adjust the h(high) til it clears up.i would start by turning 1/4 counterclock wise, just remember to keep track, in case it runs worse, the put it back to orig. then try the other way. but i suggest 1/4 turn at a time

example... think of a clock when turning screw. straight up and down, 12oc, 1/4 turn will be 3oc, another 1/4 will be 6oc, and so on. hope it helps!

Posted on Sep 22, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Need vaccum diagram for chevy impala 1978 with 6 in line motor with 1 barrel carb. rochester mono jet

To the intake manifold , from your choke, choke close incoming air is restricted, adjustment of the choke via thermostatic spring coil or electric heating element, loosen the 3 screws , as spring heats up the choke gradually opens, hope this helps

Dec 31, 2016 | Cars & Trucks

1 Answer

Choke dont work

if too rich adjust choke leaner
if too lean, adjust choke righer.

from 1920 to about 1988 , usa, 70 years we did this.
no more. well we do, but most dont now.
i still have 1 twin carb motor cycle and one single carb VW 1968.
both restored.
also the chock heater must work and the choke spring not old.
the old bi-metal spring that is old become lazy,/crazy. kick it to the curb for best experiences.
if water heated choke the water actually must flow here.
if not, it will fail.
there are 3 common types.
electric, needs 12v.
water, needs 180F hot water actual flow.
and exhaust choke stove heater. (a small horror this, dont ask)
there are others, but would need carb name and p/n

Feb 13, 2014 | 1983 Toyota Pickup

2 Answers

Edelbrock 1406 3 years old on a Chevy 350 corvette. Starts and runs great when cold but when it heats up to running temp. and I shut off the engine it will not start!! Has great spark,compression,and fuel....

Check the choke and make sure that the choke is all the way open when hot. The choke should only be closed when cold. The choke can be adjusted on the side by loosening the 3 screws and wathcing the butterfly valve.

May 24, 2010 | 1972 Chevrolet Corvette

1 Answer

15hp Evinrude, to start must hold throttle firm towards acceleration position to start, when starts won't idle until hot

It sounds like your choke is not being used. If you are setting the choke, the carb is venting air somewhere. Take the cover off the motor and look at what is happening to the choke plate when you set the choke.

The choke plate should have either a vent on the butterfly plate if it closes tight or the butterfly plate should be ajar about the thickness of a credit card if the plate is unvented. Then check the mounting nuts on the carb base for tightness. If you want, you can put some ATV around the outside base of the carb to ensure its sealing.

Also note if there is a stepup cam for the choke RPM. This would increase the RPM with adjustment for cold starts and reduce the need to Throttle so much to cold start the engine. If it does not have this part thats Okay too, just a feature to be used if it is there.

Most likely your low speed idle mixture needs adjusting and its common to have the throttle capable of shutting off the engine without a killswitch. But try Cold starting it and see if sealing the carb base and adjusting the butterfly plate has helped. Then do the mixture adjustment if you are not happy with it.

If all this fails to help, have the engine running and try moving the throttle shaft with your fingers. You want to see if the throttle shaft has play where it pivots in the carb body. Its hard to explain but the extra venting of air can occur where the shaft rubs the casting. Depending on your talent it means you need a new carb or you need to rebuild the shaft.

Good luck on your motor.

Apr 23, 2010 | Boating

1 Answer

New honda hrr auto choke hard to start

sounds like it may need the carb clening out, but it could be the auto choke not closing when cold. there was an issue with some of the early auto chokes on the gcv135/160 engines so check to see if the choke flap is in the closed position when starting from cold, run the engine for approx 10-15 minutes and see if the choke flap has opened fully.leave it to go cold and see if the choke flap has returned to the closed position

Apr 12, 2010 | Husqvarna 160 CC Honda OHC Engine 21 in

1 Answer

84 chevy running rough

Check the choke when cold. When its hot take notice that its opened. Upon starting next time when its cold look at the choke and see if its closed fully. It should be. If not push the throttle all the way open and let it retract closed. The choke should close when the engine is cold. If it does not the vacuum break is shot which should be the rear one that controls the choke. Yours may be on the front since some are but very few are made on the front

Feb 05, 2010 | 1984 Chevrolet S-10

2 Answers


its better to have it rebuilt......... it might be a float issue do u have black smoke when it first starts????

Oct 19, 2008 | 1981 Ford F 150

1 Answer

I have a 1986 pup 4 cyl,4speed.I cant seem to keep the electric choke adjusted correrctly.Is it possible tha there are problems elswere in the carb?or just the choke.

i have a 1984 pup 4 cyl 4 speed.i cant seem to keep the electric choke adjusted it possible tha there are problems elswere in the carb?or just the choke

Jul 27, 2008 | 1984 Isuzu Pickup

Not finding what you are looking for?
Garden Logo

Related Topics:

36 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garden Experts

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers


Level 3 Expert

544 Answers

john h

Level 3 Expert

12650 Answers

Are you a Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides