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My lakota has a new carb and just had a top end redone by a professional, but it will not start. The electric start turns it over great, there seems to be compression. It seems like its trying to start, getting right there and just doesnt catch. It does start occasionally, but wont run for more than a couple of minutes and smells rich. Im assuming the carb needs to be tuned, but im just wondering if anyone else has any ideas before i get a chance to work on it.
By Ed Zeppeli
I picked up this quad after the previous owner couldn't get it going.
The issue is that I can't get it to fire at idle or at all.
- replaced plug. Decent blue spark. Also tested with spark tester inline.
- rebuilt the carb. PO had already bypassed vacuum lines from petcock. There's fuel at the cylinder
- Checked compression with new gauge. reads 190 psi
- cleaned all contacts I could access.
- am currently jumping with car battery. Solenoid jumpered.
- checked cam timing at TDC and adjusted valve lash
- put gas directly into cylinder to see if it will fire at least momentarily
Motor turns over well. Plug gets wet.
Motor may fire once or twice but smokes through exhaust a bit as if it's trying to fire or combusting.
This leads me to suspect timing. As mentioned I checked the flywheel mark versus cam marks. Perhaps someone has been in there before because I can't find a 'T' on the flywheel but there is a very visible paint mark which aligns with TDC position on piston. Possibly a slipped flywheel/woodruff?
Is it possible that if it had seen previous repairs, that the timing could still be off? I'm reluctant to dig into the flywheel/stator area if there's something else I could have missed but all signs point me to that area. Would a bad CDI cause spark timing to be off?
Anywhere else to diagnose incorrect spark timing?
I've scoured these forums and elsewhere but I'm posting just in case there's something I've overlooked up until now.
Thanks very much for reading!
By Chad Dickerson
I am goin nuts here! I have a 04 400 air cooled 4x4 , I'm a atv,car,truck,mower mechanic for yrs,just sayin. Ok it cranks and kinda fires now and again then after 5 min of cranking and stopping itl start if u touch throttle itl did then u start all over! If u let it warm up sumtimes u can throttle it up other times it just does! Just depends on it? When it stays running it runs awesome,no problems except it just does randomly like u shut key off? Sumtimes itl start right back up others itl do the no start thing! IV put new plug,adjusted valves and hot tanked carb? I'm at a loss here guys! Please any other ideas? I don't think it's anything to do with flywheel? It's not the auto it has a hi low reverse lever on left fender and foot shifter? Help please lol
By Kevin Vlogs
I just bought my first Quad, a 2014 Sportsman 400 HO and want to replace the battery. It's not dead, but the voltage seems low and I'm not sure how old the battery is. What does everybody recommend for a replacement battery? Is there a difference that I should know about? I see Gel batteries, Regular Acid sealed batteries and a lot of different prices. Any help would be appreciated.
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Got a 04 Sportsman 500 that wasnt running- owner said it needed a stater and a new battery. It ran rough (been sitting out in the weather for a while). A friend and I started by adding a new battery and it would start barely with the choke and his hand over the air-filter. I decided to install the new battery in the holder on the side. we had it on the rack because the old on was still in the bike. I tried to be nifty by turning the battery to put the terminals in an easier spot to get to, but forgot to reverse the cables too. In a sentence, I reversed the positive and negative on the battery like a dummy. When we discovered my mistake and corrected it, we turned on the bike, but the display did not light up and the key did not turn on the starter. jumping the solenoid worked the starter, so we thought the solenoid just burned up when I reversed the pos and neg... new solenoid and no difference. what have I burned up? Also, the shifter does not seem to do anything in the trans. it slides back and forth like its stripped in the trans. any help would be appreciated!!
I think the biggest issue right now is the electrical.
The battery box on my machine kind of fell apart and I was wondering if this has happened to anyone else and what they did to rebuild the box.
By Resurgence Small Engine Inc.
Diagnostics - Bad Voltage Regulator (2007 Arctic Cat 700 EFI)
In this video, Jonathan investigates a client's observation that he has had to replace the battery every 2 years on his 2007 Arctic Cat 700.
Watch the video to follow Jonathan's diagnostic process.
Thanks for watching!
Resurgence Small Engine Inc.
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