Motorcycle

Motorcycle Questions? Ask a Mechanic.

Ask an Expert,
Get an Answer ASAP!

Motorcycle

timing..fuel tank..IDLES FINE, but when you throttle it up, it cuts

Customer Question
1995 yamaha big bear 350...
1995 yamaha big bear 350, good compression 150#, carb. is good, timing is dead on, and a new coil. The fuel tank has been cleand and draind twice, to put new gas in it. IDLES FINE, but when you throttle it up, it cuts out and eventually dies, it'll start right up. Seems to be constantly intermitant. Could this be electrical, or what?
Submitted: 5 years ago.Category: Motorcycle
Show More
Show Less
Ask Your Own Motorcycle Question
Answered in 2 minutes by:
4/12/2012
Motorcycle Mechanic: jmlloar, Motorcycle Mechanic replied 5 years ago
jmlloar
jmlloar, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 73
Experience: Suzuki service pro certified multiple Yamaha and Kawasaki certifications
Verified

jmlloar :

does it completely die or just pop and spit and carry on

jmlloar :

Hello, are you there?

Customer:

Dies, will idle if left unthrottled.

jmlloar :

Only electrical problem on yamaha that is assosiated with this typr problem is the park brake switch

Customer:

sometimes if throttled slow it spits and sputers before die

jmlloar :

Sounds more like carb problem

jmlloar :

first easy check, is intake boot cracked? Pull on carb and look for cracks

Customer:

I've been through this carb three times and it's all there, clean and all ports are open. raised the float leaval, lowered the float, all the same results. Now cracks in intake boot.

jmlloar :

is this the cv carb with round top and spring on top of slide?

Customer:

no round top, spring under plate on top of slid

jmlloar :

does slide move freely up and down in carb with your finger

Customer:

Yes

jmlloar :

look very carefully for crak or tear in slide diaphram

Customer:

none. one other ?, should the flywheel be in oil bath?

jmlloar :

yes

Customer:

Where is the pick up on this?

jmlloar :

You can check switch for p brake, it very seldom causes a stall but it does keep engine from reving

jmlloar :

pickup there is actually 2

jmlloar :

both are with stator in the flywheel side

Customer:

Do these ever cause problems?

jmlloar :

only ever seen a no start from pick up

Customer:

Understand. Have You ever known any problems like this that wasn the carb.?

jmlloar :

test p brake switch and let me know, its the small switch on left handlebar lever, first try pushing out on brake lever and reving engine

jmlloar :

This is a bullet froff engine and very few problems other than neglect I have seen

jmlloar :

bullet proof

Customer:

How can I get back to this after checking it out.

jmlloar :

you will get an email link, and you should have a my questions link when logged in to the site

Customer:

Thanks, XXXXX XXXXX do that now.

jmlloar :

ok

jmlloar
jmlloar, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 73
Experience: Suzuki service pro certified multiple Yamaha and Kawasaki certifications
Verified
jmlloar and 87 other Motorcycle Specialists are ready to help you
Ask your own question now
Customer reply replied 5 years ago
Relist: Incomplete answer.
Customer reply replied 5 years ago
Hello, are you there? Do You want to know what it was?
Motorcycle Mechanic: jmlloar, Motorcycle Mechanic replied 5 years ago
know what what was?
Ask Your Own Motorcycle Question
Customer reply replied 5 years ago
Sorry, my bad. The carb was good, but I had a vet tube patially blocked. Dam those mud dobbers.
Motorcycle Mechanic: jmlloar, Motorcycle Mechanic replied 5 years ago

Pretty common

 

Good way to solve that is by using a fish aquarium air end. The one that is like a cylinder shaped tube that hooks onto the end of the air pump line. Attach it to the end of your carb breather and it will help keep them out. An in line fuel filter works almost as well.

Ask Your Own Motorcycle Question
Ask jmlloar Your Own Question
jmlloar
jmlloar
jmlloar, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 73
73 Satisfied Customers
Experience: Suzuki service pro certified multiple Yamaha and Kawasaki certifications

jmlloar is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

Meet the Experts:

Jeff Policky

Jeff Policky

Motorcycle Mechanic

2,425 satisfied customers

Yamaha Gold, Suzuki Gold, Honda Bronze, Polaris Bronze, BRP

Louie

Louie

Technician

1,281 satisfied customers

25+ yrs. experience

TIMOTO

TIMOTO

Motorcycle Mechanic

1,233 satisfied customers

Honda registered technician, silver level award, former Kawasaki/Suzuki tech, 40+ years exp.

Andre Pilon

Andre Pilon

Motorcycle Mechanic

1,032 satisfied customers

Over 25 years experience, ICS, MMI, Owned shop for 12 years, worked tech-support for Harley Davidson

Kenny O.

Kenny O.

Motorcycle, ATV, Mules, Side by Side's Product Specialist. All Brands

619 satisfied customers

Worked for Kawasaki Motors as a Product Support Specialist (Factory Support) for 24 years

asphaltcycles

asphaltcycles

Motorcycle Mechanic

458 satisfied customers

I operate a motorcycle dealership and CCS Ducati Race team.

Glenn Adams II

Glenn Adams II

Motorcycle/ATV Technician

393 satisfied customers

6 years Motorcycle/ATV/Water Craft; 4 years auto; 18 years carpenter

< Previous | Next >

Related Motorcycle Questions
Moose. I have a '05 suzuki 500 quadrunner that will start
Hello Moose. I have a '05 suzuki 500 quadrunner that will start and run normal for about 10 secs. Then it will only idle and when throttle is increased it will die or at least bacfire a couple times t… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I have a 1992 FXR that I have just fitted a Revolution 85
Hi, I have a 1992 FXR that I have just fitted a Revolution 85 cube bolt on kit to as well as an ev27 Andrews cam and new performance lifters with a new steel cam chest breather. All clearances are cor… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
6,997 satisfied customers
My bike won't start. The starter motor is turning the engine
My bike won't start. The starter motor is turning the engine but it just won't fire. All electronics are working fine and I've had the battery tested. I rode the bike to work all good, left it for 2 h… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Honda Nss250S Headlights fine, but when I switch to dip,
Honda Nss250S Headlights fine, but when I switch to dip, nothing happens and the headlights stay on. Their are only 2 wires into the switch. Surely their should be 3 ? Any advice would be most welcome… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
2005 gold wing, ran ok, replaced battery now won't start but
2005 gold wing, ran ok, replaced battery now won't start but does turn over. Sounds like not getting a gas. Suggestions? … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I have a 1991 vmax yamaha 1200. So there is no power on the
I have a 1991 vmax yamaha 1200. So there is no power on the spark plug. But it turn over normally. … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I replaced the starter & now no spark. It wasd running finr
I replaced the starter & now no spark. It wasd running finr before. … read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
6,997 satisfied customers
Got a 96 Fxdwg that I am doing a ground up resto on it has
Got a 96 Fxdwg that I am doing a ground up resto on it has the stock tranny but when I built the motor i had to replace to lowerend with S&S cases and oil pump question is where do all the oil lines g… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
6,997 satisfied customers
I'm looking the new 2018 Kymco xcting 400i scooter. I'm 5'6"
I'm looking the new 2018 Kymco xcting 400i scooter. I'm 5'6" tall so I need to lower it. Can it be done, and what Shocks and how can I go. Thanks,Dane … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 1970 Rupp Sprint and have to replace the track.
I have a 1970 Rupp Sprint and have to replace the track. What is the proceedure? … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
How to open a jam seat when the does not work. It is a 2016
No the brakes have not been squeaking and I have check the fluid level … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
For 2004 harley night train the turn signals on left not
Hello, for 2004 harley night train the turn signals on left not working,left side rear was working., now its not working, front running lights are working.only turn signal on front left side working. … read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
6,997 satisfied customers
The check engine light is on. How can I find out what is
The check engine light is on. How can I find out what is wrong without taking it to a dealership? … read more
Kavey
Kavey
86 satisfied customers
How can I open the seat of my 2014 Yamaha Zuma without a
How can I open the seat of my 2014 Yamaha Zuma without a key. The key is locked in the seat! … read more
Kavey
Kavey
86 satisfied customers
I own a 2009 fatbob dyna and I have just put 14 inch bars,
my name is ***** ***** I own a 2009 fatbob dyna and I have just put 14 inch bars , new wiring , switches , hand controls , braided throttle and clutch cables but when it was time to fire it up I had n… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
6,997 satisfied customers
I have a 2006 Honda Rancher TE and wanted to see if someone
I have a 2006 Honda Rancher TE and wanted to see if someone could answer a question regarding lining up the cam shaft marks on crankshaft lobes ( that may not be what they are called exactly. Accordin… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
My son's LT50 started giving starting problems. I removed
Hi, my son's LT50 started giving starting problems. I removed the carb, cleaned it out. Was very dirty. New sparkplug etc. Now I can't get itstarted at all. Tried the priming and flooded piston. It's … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I have a 1985 h-d fxsb headlights dim when throttled up an
I have a 1985 h-d fxsb headlights dim when throttled up an brighten when I let off throttle… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
6,997 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x