Question about Motorcycles

Open Question

Engine wont start on my polaris big boss 500 6x6 after the piston and rings was replaced

Last month my motor would not turn over anymore, after i took the carb off i noticed a chunk of the piston was broken, so i took the head off and got a new piston and new rings, now i put it all back together and i have fuel and i have spark, but it wont start, i have compression cuase my finger blows out the hole when i try the old school compression test, its a 2 stroke motor, and yes when i placed the new piston in i made sure the hole markings was facing the correct way, WHAT DO I DO NOW!!!????!!

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 3 Answers

SOURCE: i got a 1987 yz250 that wont start. we cleaned

check your float in the carb it could be off causing the bike to flood itself before you even get a chance to kick er over

Posted on Jul 15, 2009

Ad
  • 68 Answers

SOURCE: scooter wont start

carb could be clogged with trash even though fuel is gettin to carb the main jet could be blocked not letting fuel enter intake

Posted on Aug 02, 2009

Benimur
  • 6966 Answers

SOURCE: My 50cc 2 stroke engine won't start, it has fuel

Hi and welcome to FixYa,

A couple of ideas:

  • fuel to the carbs - as you posted checks good;
  • fuel inside the carbs - loosen the drain screw at the bottom/bowl. Check for quality / quantity of fuel;
  • fuel into the combustion chamber - check the plug (would be wet).
For a no start 2 stroke engine with your described condition, a possibility to consider is too much / unburned 2T oil in the lower combustion chamber; remove sparkplug, air dry (or use compressed air).

Good luck and thank you for asking FixYa.

Posted on Sep 09, 2009

  • 79 Answers

SOURCE: 2 stroke engine not starting

Head or base gasket leak, spark is happening at the wrong time. Any of these will cause it to not run.

Posted on Oct 02, 2009

  • 35 Answers

SOURCE: 1981 suzuki gs550l wont start, rebuilt carbs, new plugs, new bat

did you adjust the iddle screws? Those black plugs need to be installed. Those carbs pull all gas threw the main jets. If you remove the black plug and look closely you will see a small tunnel going from that tube to the main jet tub. The fuel gets pulled threw that tiny hole from the main tube. (This also puzzled me the first time I saw one, don't worry, that was the first thing I thought of doing also, but since then, I have found tons of bikes and boats like this) I found mine runs best on 2-1/2 turns on the idle screws. Also try sincronizing you carbs, the cheep way to do this is by blocking them open slightly and checking the butterflies with a feeler gauge to see if they all open the same amount. I also found that sometimes it could be as simple as the choke slide not returning completely back to the proper position, this will cause the diaphrams to not operate properly. Good luck and hope I helped a little.

Posted on Oct 17, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My polaris 350 engien wont turn over


If your engine does not turn over with the starter or pull rope, take spark plug out and see if the motor will turn over. If it will not turn over you may have a stuck piston. Was it running before?

Mar 15, 2014 | Polaris ATV

1 Answer

99 polaris scrambler 400...was eating coolant then stoped running...as i was turning it over i heard a clank and now i have no compression


Probably a blown head gasket. Coolant will not compress. but will burn off. If the leak got too big and was leaking onto the piston... You probably just broke it or the rings or the connecting rod. Engine job...!!

Sep 04, 2013 | Polaris ATV

1 Answer

Engine wont start on my polaris big boss 500 6x6 after the piston and rings was replaced


First - Did you find ALL the pieces of the broken piston...if not...STOP and FIND them.. they are in the bottom of the crankcase...you engine WILL NOT live long if you have not gotten ALL the pieces--even the TINIEST ones out!! You mat have more damage than just a broken piston.. something caused it to break.. you may have cracked the crankcases...may have damaged the main bearing(YES) and/or damaged the crank bearing.. see if gas in leaking into the transmission oil.
There is an arrow on the piston that faces toward the EXHAUST port. If there are hole(s) in the piston, they go towards the INTAKE.
Do some more searching and repost the results for review!

May 22, 2017 | Polaris 2012 Sportsman Big Boss 6x6 800

1 Answer

I own a black pulsar 220 dts-i and it has run over 11000 kilometers.last month my gear was malfunctioning so i took it to the service station and then they opened the whole engine for it.after it got...


Blue smoke is usually a cracked piston ring or worn out oil ring.
The only time the valves should be suspect is if the valves were recently lapped or replaced.
It's possible in those cases that the valve seals might leak oil into the cylinder.
Most often though, you will be looking at the piston rings, and the cylinder itself might need to be honed or bored.
If the cylinders need to be bored because of gouging due to scraping of the cracked or shattered rings, then you will need an oversize piston and rings to fit the new bore.

Jun 27, 2011 | 2010 Bajaj Pulsar 220 DTSi

1 Answer

My Polaris Sportsman 90 ATV has 70lbs of compression on the engine is that enough ? It does not start .


70lbs for a 90cc should be good, but 80-85 is better. Compression drops from piston rings wearing out, most of the time. Piston rings wear out from old oil...every time. Rule of Thumb: 5 tanks of gas, change your oil !!! It's not a car !!! A car has 5 quarts of oil which takes about 3 months to break down (2,000 miles or so), 90 cc engine has a half a quart, which takes about 3 weeks to break down (based on everyday use) SO...5 tanks of gas, change your oil..

as for the not starting thing, check for spark (should be a blue spark ONLY, any other, replace plug, orange won't ignite gas) if you haven't been riding for a while, open the drain screw on the bottom the carburetor and drain the water out. Ethanol turns to water when the gas sits too long...

Apr 09, 2010 | Polaris ATV

1 Answer

My indy 500 wont start i changed the fuel pump and it will turn over with stater fluied got compresion and spark


i have trouble starting a polaris indy 500 1990 new gasgets, pistons rings all i does is back fire through the two carbs

Dec 11, 2009 | Polaris New Genuine Polaris Snowmobile...

1 Answer

Hard to( impossible) start when warm 2001 polaris trail boss 325


check or change oil and clean around engine fins sound like engine getting to hot and vapor locking fuel

Oct 05, 2009 | Polaris ATV

1 Answer

I have a 1989 Polaris Big Boss 4x6. Cannot get polaris to start. New plugs, battery and coil, still no spark to the plugs. What else can I check before having to spend big bucks at dealership ?


Check the emergency cut off switch position and the ignition switch. Use a voltmeter to see if any voltage to the coil when unit is in ON mode. The CDI ignition might be bad. Replace as a last resort for dealer work. These run about $60.00.

Sep 17, 2009 | Polaris ATV

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

33 people viewed this question

Ask a Question

Usually answered in minutes!

Top Motorcycles Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4535 Answers

yadayada
yadayada

Level 3 Expert

76649 Answers

kakima

Level 3 Expert

102366 Answers

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

Answer questions

Manuals & User Guides

Loading...