Question about Suzuki VZ 800 Marauder Motorcycles

1 Answer

My vz800 only runs on the front cylinder. The back kicks in and cuts out through the power band. I have been through the carbs and cleaned all the jets and air ways. If I hold my hand over the rear intake the cylinder will pick up and it will pop on both at idle. I'm stumped!

Posted by on

1 Answer

  • 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.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Suzuki Master
  • 40,868 Answers

Hi Aaronstarnes, and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition and leaking.
3. Spark plug gap too close or too wide.
4. Faulty ignition coil, module, and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose/broken connections at battery terminals/cables, especially the "NEGATIVE" cable at both ends, ignition coil, or plug between ignition sensor and module.
7. Intake air leak.
8. Water, dirt, or rust in the fuel system, carburetor and/or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor.
12. Loose, dirty, or corroded ignition module connector at crankcase.
13. Faulty MAP, CKP, and/or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damaged intake or exhaust valve.
For more information about your issue, please visit the websites below. Good luck and have nice a day.
Suzuki Motorcycle Service Repair Workshop Manuals

Posted on Oct 05, 2015

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.
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.
goodluck!

Posted on Jan 02, 2017

  • 375 Answers

SOURCE: kick back and starting problens

Take it to a shop and get it tuned - remotely diagnosing problems with a modded bike is impossible.

Posted on Jun 27, 2009

  • 3567 Answers

SOURCE: 1981 gl1100 has 4 keihin carbs bike sat 7 years

39dcb9a.gif5ab3c33.gif
648d54b.gifWhen removing the pilot jet screw, count the number of turns to remove. Put the screw back the same number of turns then unscrew 1/4 turn.
A “very helpful” rating on this answer? Thanks!

Posted on Jul 02, 2009

  • 164 Answers

SOURCE: 2005 kx250f wont idle.will idle fine w/choke

the fact that it idles with the choke on indicates that fuel mixture is the problem here remove the mixture screw completely check that the o ring seal is not damaged & that the end of the needle is not worn or bent if either of these conditions are obviouse replace the damaged or worn parts general rule of thumb with mixture adjustment is 1&1/2 to 2 turns out give it a try

Posted on Feb 23, 2010

  • 3 Answers

SOURCE: I have a 2000 Yamaha Vstar classic with Vance and

readjust carbs popping due to being to lean

Posted on Jan 14, 2011

19ken55
  • 426 Answers

SOURCE: Hi , my suzuki Bandit GSF 600 2002 plate, off road

Ride the bike 20 or so miles on open road. Stop and remove plug to inspect. 'Are they black or white ?


Black =rich white=lean

Posted on Feb 01, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Marauder carb


Try new plugs

Sep 01, 2013 | Motorcycles

1 Answer

2000 VZ800 marauder runs mostly on one cylinder


It seems there is too much of fuel going into the non firing cylinder thus the blackish spark plug, recheck the float level to that carburater and also check the valve clearance.

May 01, 2013 | 2000 Suzuki VZ 800 Marauder

1 Answer

2002 Suzuki Marauder VZ800 Front cylinder does not fire till bike warms up a bit?


Definately try a spark plug first. What does the old spark plug look like? ( white, oil fouled, melted, metallic?). Usually a fuel issue will make the inoperable cylinder very hot. Might have a loose valve guide in the head, or a bent valve.

Oct 18, 2012 | 2004 Suzuki VZ 800 Marauder

3 Answers

Front cylinder misfire at idle,then raise rpm's to 2000 area an it comes in an out popping thru exhaust.front cylinder cold to the touch when rear is hot, till it runs a couple of min. New plugs, good...


I am not sure if the bike is a 650 or 1100 but in either case it sounds like a fuel issue or and air leak. When the carbs were off for re-jetting did they get cleaned? The slow circuit controls to about 2000 rpm and it sounds similar to your problem.

The first thing to look at is the carb synchronization. If the front cylinder is lagging, it can give the same symptoms. I do not think that the exhaust is a factor because the front is cold when running.

Spray some WD 40 at all the intake manifold area when the bike is running and see if the idle changes. the idle will change and push some smoke out of the exhast if the intake is leaking.

If both of these check good I would pull the carbs back off and clean the slow circuits out completely. This is delicate work and shoud be done by and experienced tech.

If I can help some more just send message.

I hope that his helps. Steve

Jan 18, 2011 | 2004 Yamaha V Star Classic

1 Answer

I have a 2000 suzuki marauder vz800. the front carb isnt getting fuel and the carbs have been freashly rebuilt. i am getting fuel to the rear. i cant tell if the fuel pump is working. it is brand new...


This is a common problem with vz800 models, I had the very same problem front ran lean and rear ran rich. I would advice you to do the following strong. change the frot jet to 130 rear to 135 and both needles should be 3rd from the top. it's not your fuel pump it rarely goes bad.If there is back firing then turn the carb. screw out by 31/2 turns. hope this helps. PS: it is not your petcock, nor your fuel pump. One advice have you gas tank cleaned and line it with POR only it is a good product.

Dec 07, 2010 | 2000 Suzuki VZ 800 Marauder

1 Answer

I have a 1990 suzuki rm 125 starts first kick, but boggs alot, every once and awhile power band kicks in and it runs good. I checked spark good and blue, checked reed valve in good shape. pulled head...


I'd start by thoroughly cleaning out your carb.,...check/replace the main jet with a leaner, [higher #], jet...change/clean pilot jet also,..spray carb cleaner in all holes and blow out w/compressed air. Re-check your float height and/or any damage to the float pin+tangs etc. Maybe try a 50:1 gas:oil mixture. Perform a leakdown test,..air will cause boggs as well. *[p.s.; does bike blow oil out exhaust?].

Apr 09, 2010 | 2003 Suzuki RM 125

2 Answers

I have a 2001 suzuki RM125 and it wont kick start and the power band wont kick in,It will start write up if pushed but the power band will not kick in..Thanks Greg...N.O. L.A.


it may just be dirty carb jets or no fule from the tank getting to the carb if it runs better with the choke on its likly to be jets blocked up

Mar 18, 2010 | 2003 Suzuki RM 125

2 Answers

I have a 99 vz800 suzuki back firing when i decelerate


Hi and welcome to FixYa,

In the versions we have worked on, almost always, your description indicates too lean a mixture on at least one of the carbs (chances are the one for the front cylinder). Considering that it has not been used for over a year, the carbs would need to be pulled down and cleaned. Old/stale gas would have coated the inside of the carbs with varnish like substance. This would be blocking the ports, holes, jets, slides and definitely, the bowl, walls and floats. Other than the above, the fuel pump/regulator would also have to be considered.

Incidentally, I was made to understand that certain versions has had known issues with the carbs and a recall was done.

Good luck and thank you for using FixYa.

Apr 25, 2009 | 1999 Suzuki VZ 800 Marauder

2 Answers

2003 Suzuki RM 125 with no power band.


Scatter gun approach > thoughts to check out > > >
Clean and dry the air filter? Go back to a stock main jet, at least to check things out? Are "O" ring seals on the main jet going bad?Partial internal collapse in exhaust (remove exhaust pipe & do a quick run down the alley), Install a new stock NGK spark plug, Be sure battery connections are clean and tight, Be sure intake manifold and carb are good and tight.

Hope this helps!

Apr 03, 2009 | 2003 Suzuki RM 125

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

219 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Ed Nelson
Ed Nelson

Level 2 Expert

149 Answers

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

Answer questions

Manuals & User Guides

Loading...