Question about 2004 Yamaha YZ 250 F

1 Answer

Cant start my 2004 80 ws raptor

The starter works but I cant start it looks like that is no compreshin in the cylinder when I crank the engine but the piston is moving OK But thet is wary litel comresin inside the cylinder.
This is a 2004 yamaha raptor YFM 80 WS model

Posted by on

  • vtrktrmn May 11, 2010

    Do a compression test and that way we will know for sure what direction to go, If you have been racing this bike it is possible that while down shifting it got over revved and bent the valves.... I am sorry to say I have done this myself.....



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,167 Answers

Buddy sounds like your piston rings have wore or broken strip the barrel off and replace rings making sure you put oil on them when you install

Posted on Sep 08, 2009


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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

No crank no start problems

What year and make is it? Your relay is usually drivers side under the hood. But, it could be under the dash. Its in a box similar to a fuse panel and may actually be in with fuses.are you getting any noise? Are other accessories like radio working?

Apr 05, 2016 | Cars & Trucks

1 Answer

Isuzu trooper won't start? What is the possible reason??

wow no year car stated... nor engine....
we cant answer those with out the below:
does engine crank robustly? , spinning the engine crank shaft fast?
that be first.
we cant guess that... ever.
starter silent,?
only clicks
if the engine does crank , then
1: check fuses first.
2; CEL lamp most glow keyon, if not ECU is dead. (fuses!)
3: cranks ok.,?
4: check spark next. got spark to all 4 to 6 cylinders? (yes, all must spark)
6: and 50 more possible failures or 1 to 10 tests. skipped,... now.

tell more get more...
the tests are easy.
what year car?
what engine is there,?
does the starter make noise, Y/n
if yes, does engine spin fast (watch front engine crank shaft pulley, it must spin or engine will never start)
if it cranks ok say so, and we check fuses and spark next. got spark? cranking?
on all cylinders?
tell more get more....

Aug 18, 2015 | Isuzu Cars & Trucks

2 Answers

When I try to start the car it wont start but all the lights are . what wrong?

what lights. do tell> we cant guess which of 30 lamps blink.

the 95 , what engine, (size) and cylinder count./
we can not guess that either,

cranks but no start,
the jeeps will run for 3 seconds, and the die via the ASD relay LOGIC.
there are up to 6 ways for the PCM to cut the ASD, for just causes.
so do you get spark for the 3 seconds. cranking?
if not the ASD drops. (fuel/fire safety reasons)

if engine is ok, with full compression
it will run for at least 3 seconds, cranked,
if not there is no spark.
check spark, now, ever do a tune up this decade?
if spark is good, x6 or x8 cylinders than its either flooding or starving for fuel.
take out 1 spark plug, is it soaked in fuel
yes, put i back and crank engine wide open trottle
this is oper, guide, super secret unflood mode. (a feature on all cars)
starts now?
well its staving for fuel
try test fuel.? yet> (spray)
runs for 3sconds and stalls.
yes? then fuel is lost.
check fuel pressure for spec pressure.

i cant tell presssure due to NO ENGINE STATED.

Sep 18, 2014 | 1995 Jeep Grand Cherokee

1 Answer

Raptor 80 started turns but does not engage motor

sounds like the starter clutch is bad. the rollers get worn or the sprag gear gets worn so it will not grab and start the motor. check that out. you will have to take the engine side cover off to see it.

Apr 27, 2014 | ATVs

1 Answer

The engine was to much compreshin when you try to crank the starter makes a funny sound and does not kick over but when you take off the the cover to thers no compreshen it spins

There cannot be to much compression only weak battery charge battery or replace battery see what happens I not hundred percent but I would assume your cams have Auto de compression fitted to them so compression should never be the issue

May 22, 2011 | 2003 Honda CBR 600 RR

1 Answer

I have a 2001 raptor 660, I cant seem to get it to

2 possible issue, your starter solenoid and or your starter relay.

i would not taket the last owner's word for it, even the bike does not agree it is new.

Dec 25, 2009 | 2008 Yamaha XT 660 Z Tenere

1 Answer

Cant start my 2004 80 ws raptor

Most likely, the head gasket is blown.
Check the compression on all cylinders that you can reach.
Compare results. If 2 adjacent cylinders have low compression, then that's the head with the blown gasket.

Hope this helps!

Sep 08, 2009 | 2004 Dodge Ram 1500

3 Answers

1996 jeep grand cherokee, wont start. have power to everything, it's in lockdown.

Its the key fob battery!

Mine had enough to open the doors etc but not enough to deactivate the immobiliser!!!

Jeep Northampton fixed it. Brilliant Garage, would recommend them to any Jeep owner, lovely people.

Aug 12, 2009 | 1996 Jeep Grand Cherokee

2 Answers

I just bought a 92 jeep cherokee ran beautiful . now it just sits there cant get it to start . battery was dead replaced still wont start . cant tell if its the ignition or the starter.

I'm assuming the starter is not turning the engine...check the small wire on the starter for 12v with key turned to start. If no voltage there, check ignition switch and neutral start switch. (voltage in, voltage out)

May 09, 2009 | 1992 Jeep Cherokee Sport

1 Answer

Have a Mitsubishi starter for a small 3 cylinder (Toro Mower)

Removed starter and tested with new battery and jumper cables...starter worked fine. Replaced battery and cleaned cable attachments...unit started as usual.

When starter throws this would indicate that the interconnect circuits are intact..the engine still would not turn...that leaves the battery, the cable, or a siezed engine. The engine flywheel turned siezure. That left only the battery and cable. Battery was 3 years old...cable was corroded...bad combination. Battery was replace and corrosion removed from the cable terminals...started first crank.

Apr 12, 2009 | Diesel Garden

Not finding what you are looking for?
2004 Yamaha YZ 250 F Logo

Related Topics:

383 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

314 Answers


Level 3 Expert

1216 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1165 Answers

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

Answer questions

Manuals & User Guides