Question about Yamaha WR 450 F Motorcycles

2 Answers

I have a wolverine 450 quad with 50km on it. it started to sputter and stall. will idel with choke on(rough though).when choke off it backfires and stalls. changed gas and plug....didnt help. was wondering if carb is problem? is it a tough job to fix as i live 200km from nearest shop. any help or advice you can give would be very much welcomed.

Posted by on

  • 2 more comments 
  • darrensworld Apr 25, 2010

    need to know steps to getting carb out and how to get to jets inside of carb. go through float bowel or top of carb?????

  • darrensworld Apr 25, 2010

    thank you very much for the help. have a good one....DM

  • darrensworld Apr 25, 2010

    these guys a great. thanks for everyones help

  • darrensworld Apr 25, 2010

    thanx very much buddy



2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Yamaha Master
  • 76,846 Answers

This is most definitely a carb dirt problem, remove the carb and blow it out with compressed air and use carb cleaner to clean the jets and internal passages, then blow out the passages again, compressed air is a absolute must have, also it would be a good idea to remove the gas tank and make sure you didn't pick up some dirty fuel, it only takes the tiniest bit of dirt to cause this problem.

Posted on Apr 25, 2010

  • yadayada
    yadayada Apr 25, 2010

    it is very easy, just disconnect the linkage and the clamp to the rubber intake tube and off comes the car, the jets and p[assages are cleaned through the float bowl, very, very simple job. I have done many 4 carb setups, never took more than 2 hours to go through 4 carbs and reinstall them.


  • 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 whose answer got voted for 500 times.

  • Expert
  • 4,070 Answers

Hi! you may have fuel flooding. You will need to fix the jettings of the carb. It wont be a tough fix, just gonna require a lot of patience. Hope this helps and have a good one!

Posted on Apr 25, 2010


1 Suggested Answer

  • 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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
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

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

After start it backfires, sputters then runs

Hi,when starting bike you put the chock on,remeber this is to make a richer mixture for cold start,so when you start the bike put put the choke off a little bit as it warms up,other wise wat you are doing is couseing it to floud,so again as the bike warms up put the choke off little bit at a time,all the best.

Sep 01, 2015 | Honda VT 1100 C2 Shadow Sabre Motorcycles

1 Answer

Wount start and it backfires

Check for bad gas, water in gas, blown head gasket. or carb need complete rebuild.

May 31, 2014 | Yamaha 2006 Wolverine 450 4x4

1 Answer

1991 F350 w/460 cu starts but runs rough until warm.

sounds like auto matic choke problem try a manual choke

Jan 02, 2014 | Cars & Trucks

1 Answer

Buick regal 3.8l 3800 series 2 rough idle, almost stalls, surges forward

have u checked the idel air control selonoid otherwise could be a bad injector or fuel pressure regulator

Sep 26, 2012 | Cars & Trucks

1 Answer

Stalling and backfireing

to me it sounds like it might need some spark plugs put in

May 29, 2009 | 2000 Harley Davidson FLHRCI Road King...

5 Answers

4 wheeler 250cc no compression

it needs a set of rings and maybe a piston then it will be like new again

May 07, 2009 | RTO Quads 125cc Full Size Adult 4 Wheelers...

2 Answers

Sputtering backfiring, stalling randomly when i engage the clutch. help!

everytime i try to start my truck, it turns over then stalls out on me. any idea?

Apr 13, 2009 | GMC Sonoma Cars & Trucks

1 Answer

1993 jeep grand cherokee has 318 motor keeps backfiring

check wires, cap and rotor for tracking or moisture. Replace as needed

Dec 21, 2008 | 1993 Jeep Grand Cherokee

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

121 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

281 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1147 Answers


Level 3 Expert

2600 Answers

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

Answer questions

Manuals & User Guides