-
Do you own an ATV or UTV? Join our Forum!
As a member, you can post in our forums, upload your photos and videos, use and contribute to our downloads, create your own member page, add your ATV events, and even start your own ATV club to host your own club forum and gallery. Registration is fast and you can even login with social network accounts to sync your profiles and content.
1999 Yamaha Big bear won't start
-
Similar Tagged Content
-
By diamonddogs
Hi i bought my first atv last week, mostly for plowing. its a 94 yamaha big bear 350 4x4, with plow, new front axles, carb rebuild and some other stuff for $900. in todays prices, i think it was a pretty good deal. I plan on tearing it down and doing a semi restoration in the summer. its been clearly neglected so i suspect i will need to do a fair amount.
couple questions.
1. parts and manuals, so far i know it needs front shocks, tie rods, brakes, cables, lots of small stuff, whats your guys favorite online atv parts store? where can i find a good repair manual?
2 - starts and drives great, shifts a bit hard? not sure whats normal because i dont have a point of referance. i have to almost lean back in the seat and lever my foot up to get it to shift, seems like there is either alot of play in something (shift lever itself is tight) or there is a long travel, or it just dosent want to shift. also the hi / low / reverse lever needs to go past the gate a bit to actually shift into gear, and seems to need me to shift into nutral before shifting into reverse (not sure what your supposed to do). also wondering a bit about the history of the machine, because the plastics have a slot for a dash mounted shifter, but the one on it is a gated shifter right above the pull starter.
3. seat and plastics repair, seat is quite torn up with a seat cover over it, plastics are pretty cracked up, these items i havent found replacements for for any reasonable price, i dont care a whole lot about asthetics but whats the best way to functionally repair these things? is there reasonably priced replacements somewhere? i plan to bedline the whole thing after im done.
4. there was no title, but i did get a bill of sale, will it be difficult to get it titled / registered? (im in mn)
thanks in advance for your help, looking forward to being part of the community
-
By hutchir3
Hello Folks....new to the forum. I have two Warriors (87 and 92), and an 89 Big Bear. Looking for some help with engine issues on the warrior, and my 89 Big bear backfired and died. Got spark, got gas, seems to have compression, (but haven't tested it yet...next). She rolls over good, maybe too good...seems soft. Have spark and enough compression to blow gas mist out the plug hole when cranking. Suggestions, Been running great since we got it.
-
By jolio
Just got a '98 Yamaha big bear 4x4 in working condition (so far). Looking forward for some good information on this site about how to keep it alive.
-
By Muskyjim
I recently purchased a 99 big bear 350 2x4 that was sitting for a while got it running and went to take it for a ride after about 10 minutes into the ride it stalled and wouldn't let me shift down into neutral tried rocking it back and forth but will not go into neutral...can anyone point me in the right direction on where to start?
-
-
-
Similar Topics
-
By chimmike
Picked up a 98 Quadrunner 500 for a song. It's in rough shape, but funny enough it turned over and fired on starter fluid. Fuel lines are rotted to snot and the inlet tubes to the carb are rusty. I have a rebuild kit for the mikuni, but I'm wondering if anyone has used any of those alternatives on Ebay or Amazon that say they fit?
-
By Jride937
Have a 2002 Yamaha Bear tracker 250, everything was fine then one day just lost power. Battery is fine, have 12.53 volts coming out, but I have no lights no start no anything. Looking for a wiring diagram
-
By diamonddogs
Hi i bought my first atv last week, mostly for plowing. its a 94 yamaha big bear 350 4x4, with plow, new front axles, carb rebuild and some other stuff for $900. in todays prices, i think it was a pretty good deal. I plan on tearing it down and doing a semi restoration in the summer. its been clearly neglected so i suspect i will need to do a fair amount.
couple questions.
1. parts and manuals, so far i know it needs front shocks, tie rods, brakes, cables, lots of small stuff, whats your guys favorite online atv parts store? where can i find a good repair manual?
2 - starts and drives great, shifts a bit hard? not sure whats normal because i dont have a point of referance. i have to almost lean back in the seat and lever my foot up to get it to shift, seems like there is either alot of play in something (shift lever itself is tight) or there is a long travel, or it just dosent want to shift. also the hi / low / reverse lever needs to go past the gate a bit to actually shift into gear, and seems to need me to shift into nutral before shifting into reverse (not sure what your supposed to do). also wondering a bit about the history of the machine, because the plastics have a slot for a dash mounted shifter, but the one on it is a gated shifter right above the pull starter.
3. seat and plastics repair, seat is quite torn up with a seat cover over it, plastics are pretty cracked up, these items i havent found replacements for for any reasonable price, i dont care a whole lot about asthetics but whats the best way to functionally repair these things? is there reasonably priced replacements somewhere? i plan to bedline the whole thing after im done.
4. there was no title, but i did get a bill of sale, will it be difficult to get it titled / registered? (im in mn)
thanks in advance for your help, looking forward to being part of the community
-
By 92BayouB
Hey there all,
First off thanks for the board. My Bayou 220 has survived 3 teenagers and is on its 4th now. Up until recently it has been a virtual tank....until I decided to fix it;)
Noticed some smoking from the engine block (not exhaust) so figured it was time for a quick top end rebuild. Now that I have it all back together, it fails to start. I've pulled the starter rope until my arm is tired.
So I will be as detailed as possible and hopefully get some help.
Completed:
-New Head gasket
-New Valve seals
-New piston (standard)
-New rings (standard)
-All new seals
-Cleaned up head and valves (didn't do any resurfacing, as it all cleaned up pretty easy)
-All torqued to spec
-Piston ring gaps all checked out
-Valve clearances (Intake: .18mm, Exhaust .20mm). Not too tight, not too loose.
Pros:
-Engine IS making decent compression
-DO have spark
-Will fire for a split second if I drop some gas in the spark plug hole and pull start. Will NOT from carb and or intake valve.
Timing:
So I followed the guide of: TDC
-Flywheel aligns on the “T” mark on the engine site hole
-Cam gear mark aligned with the cover mark
Seeing as this is my first time doing a top end rebuild on an ATV. Here are my questions and concerns:
-I didn't realize (dummy me) that there are 2 TDC's. 1- Compression, 1-Exhaust.
How do I know if I'm on the right one?
-Does the cam need to be aligned a certain way when put back in? I just aligned the cam gear dimple with the cam and put it in. No alignment.
Thanks ahead of time. I feel like I'm 90% there, but I'm missing an important step for completion.
-
-
Recently Browsing 0 members
No registered users viewing this page.
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.