Motorcycle

Motorcycle questions? Ask a mechanic.

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Have a MiniKolt 50cc 2 stroke quad that will not run. New…

Have a MiniKolt 50cc...

Have a MiniKolt 50cc 2 stroke quad that will not run. New carb, cdi and plug. Good spark but wont start.

Mechanic's Assistant: Have you checked the battery, particularly the terminal connections? Are they corroded?

Cranks over fine.

Mechanic's Assistant: What is the model/year of your motorcycle?

2002

Mechanic's Assistant: Are you fixing your bike yourself? What have you tried so far?

Yes, myself. For a friend. Didnt have spark so i got a new plug and cdi. Have spark now. Bought a new carb also. Also have rebuilt the top end.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Had to remove the brake lever to get it to crank. Will not even fire if i put some fuel in cylinder...

Show More
Show Less
Ask Your Own Motorcycle Question
Answered in 5 minutes by:
3/17/2018
kwiggins29059
kwiggins29059, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 3,396
Experience: Experience in Harley Davidson and Triumph
Verified

Hello, if it has spark and still will not fire with fuel in the cylinder or starting fluid sprayed into the air intake then it's a compression issue. Either a poor ring seal, or leaking head gasket. If you used new rings but did not hone the cylinder you may need to go back and do that. Ifthe cylinder was honed you may need to crank the engine more for the rings to seat.

My goal is to provide 5 star service. Rating/accepting does not cost extra and ensures I'm credited for my time and knowledge. It also does not close your question if you have a follow up concerning this. Thank you for using Just Answer!

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
it was a new piston, cylinder, ring set.

Thanks for the additional info. A quick compression test will confirm but likely the rings have not seated in the new cylinder yet. If it's a manual gearbox I would suggest pulling it slowly in 3rd with another vehicle to help avoid frying the starter. If auto use the starter in short 15-30 second cranks with some wait time in between to allow it to cool. Once compression gets up to around 80-90 psi it should start with some starting fluid sprayed into the air filter. Then run it around 1500RPM for 2-3 minutes to help seat the rings the rest of the way.

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
Just did compression test. Had throttle wide open and used kick starter. Showing 85psi.

Thanks, ***** ***** enough to start. Have you tried starting fluid/either in the air cleaner yet vs fuel in the cylinder? Usually that works a little better since it's a vapor.

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
have tried starting fluid. Checked spark again and now I don't have any. Seems like an intermittent spark issue...

OK, I know you replaced the cdi, did you replace the pick up coil for the cdi? Also check your wires between the two with an ohm meter while moving the the harness around. There may be a break in one of the wires.

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
The pickup from the stator to the coil?

Looks like this it produces ac voltage to trigger the coil

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
I did not replace it but there is continuity through the wire. It runs to the cdi.

OK if you have continuity on the wire to the cdi check to see if the pickup produces any ac voltage while cranking. It probably won't be much maybe 1-5 volts. You can also check to see if its open or shorted.

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
Only showed .11. I put the positive in the pickup wire going to cdi and grounded other lead.

Thanks, ***** ***** the pickup coil is going. I would go ahead with replacement.

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
Ok, guess I'll order one and see what happens...

That's pretty much the last piece to the puzzle so to speak. It should resolve the issue.

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
Thanks... I'll get one coming today. Any certain gap?

I don't see a spec for this one but a good rule of thumb is .014 to .017

Ask Your Own Motorcycle Question
Customer reply replied 1 month ago
Ok, thank you!!

You're welcome, It's been a pleasure to assist you.

kwiggins29059
kwiggins29059, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 3,396
Experience: Experience in Harley Davidson and Triumph
Verified
kwiggins29059 and 87 other Motorcycle Specialists are ready to help you
Ask your own question now
Was this answer helpful?
Ask kwiggins29059 Your Own Question
kwiggins29059
kwiggins29059
kwiggins29059, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 3,396
3,396 Satisfied Customers
Experience: Experience in Harley Davidson and Triumph

kwiggins29059 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
Smokes all the time, sorry 82 Yamaha 650 smokes. yes you
sorry 82 Yamaha 650 smokes. yes you have to add. oil after thye run … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
A new battery in the key fob and it still won't disable my
a new battery in the key fob and it still won't disable my security system. 2009 dyna low rider … read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
7,057 satisfied customers
See the conversation here: I'll be continuing
Please see the conversation here: https://my-secure.justanswer.com/question/index/f068923a78cb4a1abbb2e9a02aaef3da?rpt=1020I'll be continuing troubleshooting...I had to stop due to being in graduate s… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Have a kfx90 how do I disconnect the rev limiter, No thanks
Have a kfx90 how do I disconnect the rev limiter JA: Okay, I'll connect you to the mechanic to go over that information regarding your motorcycle. Before I do, is there anything else you want him to k… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Is cycle season almost in Cleveland I just pulled my 2004
Is cycle season almost in Cleveland I just pulled my 2004 Suzuki V-Strom 1000 out of hibernation you help me with a stator issue that problem seemed to be resolved but now I have a new problem I just … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
01 fxd. Speedo cluster would come off and on. Still ran.
01 fxd. Speedo cluster would come off and on. Still ran. Then it just died. Battery seemed pretty hot. 5 mile hike. New battery. Nope. Starter relay, fuses and switches all have power. No low beam, tu… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
7,057 satisfied customers
My 93 FXDWG sat for 3 years with a nearly full tank of gas,
my 93 FXDWG sat for 3 years with a nearly full tank of gas, my future son in law emptied the fuel tank, serviced the engine oil and filter, recharged the air filter, checked and cleaned the bowl on th… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
7,057 satisfied customers
Were can i find 1982 cb900c vacuum fuel valve kit. i have
were can i find 1982 cb900c vacuum fuel valve kit. i have spent hours online and cannot find a rbuild kit for mine anyway were… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
1998 Polaris 6x6 big boss radiator fan not running when hot
1998 Polaris 6x6 big boss radiator fan not running when hot I put 12v to the fan directly and it turns… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I have no power to the coil. Consistent, wont start. 03
i've changed the plugs, had carb rebuilt because didn't know what the problem was.… read more
Steve
Steve
I&C technician
Vocational, Technical or Trade Scho
7,057 satisfied customers
I need to know what volume of fork oil is required for each
I need to know what volume of fork oil is required for each fork tube on a Victory Highball. I am about to change fork seals. … read more
timothy ratcliff
timothy ratcliff
t3
Vocational, Technical or Trade School
9 satisfied customers
Burgman650: the starter is working half tank with fuel but
burgman650 : the starter is working half tank with fuel but the engine is not ignite … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
When I turn the ignition switch on the neutral light and oil
when I turn the ignition switch on the neutral light and oil light come on but nothing else works … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
2013 Polaris Ranger 800 EFI twin cylinder watercooled 4
2013 Polaris Ranger 800 EFI twin cylinder watercooled 4 stroke.Problem: High Idle speed 1750 to as high as 2200. I have tested the Throttle position sensor Via a fluke Ohm meter.....resistances check … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Cruising with cruise cdontrol on and lost all power. no
cruising with cruise cdontrol on and lost all power. no spark at plugs. tested relaqys and no power at the cruise valve relay … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
My Harley 09 883 ran fine parked it in garage about 4 years
My Harley 09 883 ran fine parked it in garage about 4 years or so Bought new battery tried to start it , nothing acting like no fuel took fuel pump out hooked up to battery it works fine put back stea… read more
timothy ratcliff
timothy ratcliff
t3
Vocational, Technical or Trade School
9 satisfied customers
Bike fell on the right due to very strong wind. stayed on
Hi , bike fell on the right due to very strong wind . stayed on its side for maybe an hour or more . since then there was no power when ignition is turned on. replaced the main fuse , 30amps. got powe… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
My 2004 Volusia is breaking up real bad. i put straight
hello my 2004 Volusia is breaking up real bad. i put straight pipes on it now i hve this problem.. … read more
TIMOTO
TIMOTO
Motorcycle Mechanic
Bachelor's Degree
1,233 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