1989 Yamaha FZR 600 Logo

Related Topics:

Anonymous Posted on Jul 28, 2011

My 89 fzr 600 @4.5000-5.000 rpm backfires. im new to road bikes and need help. cheers lads!

1 Answer

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Hot-Shot:

An expert who has answered 20 questions.

  • Expert 101 Answers
  • Posted on Jul 28, 2011
Anonymous
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Hot-Shot:

An expert who has answered 20 questions.

Joined: Jun 26, 2011
Answers
101
Questions
0
Helped
24383
Points
207

Too much fuel is getting through the carbs. The carbs either need setting up properly or the correct size jets refitting.

  • Anonymous Jul 29, 2011

    is there a carbs for stupid ppl book anywhere or would it be easier for me to bring it to a pro? thanks simon

  • Anonymous Jul 29, 2011

    Personally, I think it's hard to get carbs set up right so I let the pros do it

×

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer
0helpful
1answer

I have a 92 FZR 3GM, it won't rev past 4k, but if I toggle the kill switch it will rev full rpm untill it goes below 4k. I have changed plugs, pick-up, coils and carbs. disconnected the altenator but...

If you have changed your ignition coils then I think your problem is best tackled by your bike dealership. This seems to be a growing problem. My suggestion would have been to check the consistency of the primary and secondary loops of the ignition coils.
Cheers.
0helpful
2answers

89 Fzr 600 wont start

get ur ignitor unit tested. just a suggestion. good luck
0helpful
1answer

Bike bogs out at mid range and will not accelerate

Measure with a voltmeter the charging circuit for normal operation (battery, regulator/rectifier and generator).
0helpful
1answer

Stage 1 Low rpm backfire

If you are running straight pipes they might not give you the right back pressure. This can be reolved by either going back to riginal pipes or instaling a bolt into the pipes about 5 inches in to make back pressure. Another thing? Did you have the bike's electronic ignition reset after you messed with it?
1helpful
1answer

Starting The Bike On A Cold Morning

Try putting in new, stock spark plugs. Check and possibly replace the air filter. Charge the battery. Get the bike running then check the battery voltage at 2000 rpm. It should show 14volts or more. If not, get the charging system checked. Get a can of starting spray (for future problems).

Get the compression checked. Your bike is 21 years old and I will bet that the valves are needing to be reseated. Check the valve clearances with a cold engine and reset valve clearances as needed. Check the area where the head contacts th cylinder. Any mist of an oil stain? Tighten the head or replace the head gasket. If replacing the gasket, now is the time to have the shop lap re-seat the valves. Have them sync and balance the carbs as well. Your bike will now have its' manners back and show you the dedication it should.
0helpful
1answer

2002 yamaha v star 1100 when i hold it at high rpms it backfires a bit is this normal or ok or whats my problem?

if you are sitting still and not riding the bike (just revving it out till it wont rev any more)then it is notbackfiring as such you have reached the engines rev limiter and it is cutting power to the coils in sequence to protect itself from destruction,if it is backfiring at high rpm while riding then is quite likely the engine is running a touch on the lean side,and this needs to be rectified as an engine run for to long in a lean state will cause premature failure of major engine components(pistons normally melt and weld themselves to the barrells)not ideal at all,hope this helps
0helpful
1answer

My FZR 600 is acting up and backfires

I have had several bikes in my time. and keeping the carbs syncranized is very important. Did you put aftermarket pipes on it? try rejeting the carbs up 2+mm that may help the fuel air ratio?
Not finding what you are looking for?

272 views

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

vince

Level 3 Expert

2530 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1212 Answers

littlewheel

Level 2 Expert

122 Answers

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

Answer questions

Manuals & User Guides

Loading...