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ATV won't start.....Help Me
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Topic: ATV won't start.....Help Me (Read 6563 times)
02YamahaBigBear400
Senior Member
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Location: West Palm Beach
Posts: 282
Wheres the mud?
ATV won't start.....Help Me
«
on:
September 02, 2008, 10:07:52 PM »
Hey guys maybe someone can give me an idea to whats wrong. I have a bigbear 400 4x4 and 3yrs ago i was pulling a friend out of a mudhole but my bike was idling as i was trying to relocate the rope for a better pull. Well the bike shut off. Since then i haven't been able to start it. 3 yrs later, I've taken it outta storage to work on it. Just the other day i checked for spark......got that, gas......its getting that, carb and tank are cleaned out and fresh gas has been put in. It still won't fire. Every now and then I'll get a backfire or it pops my carb off the boot going to the cylinder. I haven't done a compression check but I have stuck my finger over the spark plug hole and it blows my finger off. I'm clueless to what has happened. Can some help or have any idea to what is wrong. Thanks
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2002 Yamaha BigBear 400 4x4
27x10x12 Vampires (Front)
27x12x12 Vampires (Rear)
Custom Snorkel
Extra Lights w/custom grill
FMF MegaMax 2 exhaust
----------------------------------
1996 Honda 300 4x4
27x10(front) and 27x12(rear) vampires
exhaust
HL clutch Kit
Snorkel
am/fm cd player
yz450f rider
Junior Member
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Location: apopka
Posts: 31
Re: ATV won't start.....Help Me
«
Reply #1 on:
September 02, 2008, 10:19:53 PM »
try straight wiring the kill switch
was it idleing in water??
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1999 dodge ram 13.5 lift with 39.5s
02YamahaBigBear400
Senior Member
Offline
Location: West Palm Beach
Posts: 282
Wheres the mud?
Re: ATV won't start.....Help Me
«
Reply #2 on:
September 03, 2008, 12:27:59 AM »
it was out of the water on land. my friends was in mud. but the kill switch works cause if i kill it, it won't let me crank it. I'm thinking my timing or my valves. But i never had my valves knock or right now as i crank it I don't hear anything knocking around.
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2002 Yamaha BigBear 400 4x4
27x10x12 Vampires (Front)
27x12x12 Vampires (Rear)
Custom Snorkel
Extra Lights w/custom grill
FMF MegaMax 2 exhaust
----------------------------------
1996 Honda 300 4x4
27x10(front) and 27x12(rear) vampires
exhaust
HL clutch Kit
Snorkel
am/fm cd player
bocephus300
Full Member
Offline
Location: Davie
Posts: 199
Re: ATV won't start.....Help Me
«
Reply #3 on:
September 11, 2008, 09:17:03 PM »
id say it maght of jumped a tooth in timing or the chain tension is bad. cause its blowing the carb off, meaning its sparkink while the intake is open or partially open.
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2006 outlander 800
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2006 forman 500
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grizzlefoshizzle
Junior Member
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Location: Girls Are Hotter In,FL
Posts: 99
Re: ATV won't start.....Help Me
«
Reply #4 on:
September 11, 2008, 09:29:51 PM »
check the parking brake out if its on it wont want to start cause of its weird
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[><]
2007 Yamaha Grizzly 450
stock
2005 Arctic Cat 250
3.0 Winch
25" mudslingers
MuddFreak77
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Location: Fort Myers, FL
Posts: 1006
I found out who my friends are
Re: ATV won't start.....Help Me
«
Reply #5 on:
October 04, 2008, 10:33:11 AM »
Its a timing issue, as was already said if its blowing the carb off its sparking while the intake valves are open. Check the timing chain.
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Never argue with an Idiot. They drag you down to their level, and then beat you with experience!
'07 Suzuki King Quad
3k Warn Winch
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2001 F-250 4X4 Diesel, 6 way hand
MadMudder
Supreme Member
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Location: Jacksonville
Posts: 1572
Semper Fi
Re: ATV won't start.....Help Me
«
Reply #6 on:
October 04, 2008, 05:27:14 PM »
I agree its either a timing issue or your carb might be loose. Id check both.
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2013 BF650i 4x4
Stock; for now..
scrimmy
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Location: h|U
Posts: 181
Finally, ATVFlorida.com is here!
Re: ATV won't start.....Help Me
«
Reply #7 on:
October 08, 2008, 09:18:27 PM »
^^^^^^ agree
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4fittyr
Senior Member
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Location: v-town
Posts: 434
Re: ATV won't start.....Help Me
«
Reply #8 on:
October 12, 2008, 04:27:18 PM »
if its a yamaha my buddies raptor wouldn't start did a valve adjustment not much paper thin but the intake was closing before it could fire so opened up a lil more than need .0003 on mic cause their gonna close up again hope this helps fired rite up
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if u can't be good be good at it
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