Question about 2004 Yamaha YZ 250 F

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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

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  • 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.....


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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

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1989 nissan pickup 4 cylinder when i turn the key to crank the engine i hear a click sound at the starter what could the click sound be?

could be battery . It needs a huge amount of charge to turn over the starter motor. It may work the headlights but be unable to turn the starter motor.
Suggest get battery tested at a battery seller to see if battery is really ok .
The click is most likely the solenoid on the starter motor clicking on.
You might be able to get someone to run jumper leads
Note +ve to + ve and negative to negative !
from their car while the engine is running and their car is not moving !
Wait 10 minutes
Then try to crank over your car engine .

I jump started a 4wd vehicle a month ago from my car and it took about 10 minutes to get enough charge in it to crank over the engine !

Apr 18, 2017 | Nissan Cars & Trucks

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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

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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

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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

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Craftsman Tiller 917.298560 pull cord will not move but rewind starter is ok when removed from the engine. Flywheel will not move when rewind starter is off. It worked one minute but not the next or after....

The Flywheel or the piston may not be frozen up, unless it ran without much oil to the cylinder. After not being used for a while it may have locked itself in place by hitting the old dry spot in the cylinder. Remove the spark plug and spray some lite oil like wd-40 into the cylinder and move the flywheel by hand back and forth until it starts moving freely again. Also would be a good idea to change the old oil. When oil sits up it can collect moisture and cause dilution of the oil and score the cylinder walls at start up and damage the engine. If you cannot move the flywheel by hand, try using a strap wrench. Also a good idea to wear gloves while doing this procedure.

Aug 22, 2013 | Craftsman Tiller Operation Manual...

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Changed water pump on a 92 eagle talon. we got the timing marks right,but the car won't turn over. Been working on for about 3 weeks. help

what do you mean by "won't turn over"??,does something stop a piston(s) from making its cycle?,interference engine (valves hitting pistons on its stroke). Do you mean it cranks but doesn't start? and if so,did you check for spark and timing for that cylinder????

Aug 03, 2013 | 1992 Eagle Talon

1 Answer

Will not crank, starter works fine. 40 hp evinrude, seems like the engine is locked up but the pistons do move a little when i move it by hand, need answer.

remove spark plugs and you should be able to rotate the flywheel easy ! then try starter to spin over , if not then remove starter and check the brushes inside etc ! check solinoide ok ! check wires ok !

Oct 02, 2011 | Light Outboard Motor Boat Bass Fishing...

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 ford focus has no compression in any of the cycl we checked the timing belt and all no damage everything looks good but no compression in engine. Was driving down road the other day it...

Hello, I have read about the Keyways in the crank and camshafts shearing off. If you disconnect the Battery and take out a sparkplug, you can turn the engine with a breaker bar. Then put a probe into the sparkplug hole and you should be able to feel the piston coming up in the cylinder. If the piston does not move you can start disassembling the front cover to check the Keyway on the crank.

If the pistons are moving. remove a Valve cover and turn the crank while watching the Valves or cam on the topside of the engine. This will give you an indication if the Cam is not turning. It is not impossible for a Cam to snap so watch to see if all parts the entire length of the cam are turning.

Another potential problem much easier to fix is the Starter bendix. If you only hear the Starter cranking without a load, was the engine turning? The Starter gear could fail and the starter will just spin while the engine does nothing.

Would be interested in the outcome of this problem.

Mar 04, 2011 | 2001 Ford Focus

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