Join Today, It's Simple and FREE!
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.
I've got a Polaris and a Honda that I use regularly on my ranch so they see a lot of abuse. Fortunately, there is still a Honda dealer nearby but the nearest Polaris dealer is over 1.5 hours away. They charge way too much money ($1800 for battery, alternator, wire harness and fluids change) so I am starting to learn how to do my own repairs. The Internet is a wonderful and scary place when it comes to shopping. Where can I go for a fair deal? Is there a list of preferred vendors that advertise on the forum?
Haven't got a service manual for this yet so I'm flying by the seat of my pants I made myself a shifter extension to go up by the gas tank took my foot shifter off to weld it and now when I put it back on I don't seem to be able to find neutral. Is there some asinine reason that you have to do something internally when you change or remove the foot shifter? It was a simple take off weld put back on and dog bite my pecker it's not working. I hope this is something simple I've done and that's something I need brain surgery for. Cheers fellas I know y'all will have the right answers
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 Scott Matthews
Just picked up a 1989 Big Bear 350 for $250 CAD. Bike was running but lost crank and spark. They've installed a new coil, a couple relays, and installed a Ford starter solenoid in place of the original. Now it cranks but has no spark so they sold it to me. Does anyone have a wiring diagram for this bike so I can test some wiring. Also any ideas as to direction to head would be nice. Lots of things have been hacked together so I know it probably wont be to easy. The ignition switch was replaced with a toggle switch, I already mentioned the Ford solenoid which 1 of the small wires was not re-installed, and a diode or something was removed from the oil temp sensor wire. I'm sure I will find more so a diagram would be amazing.
Similar Tagged Content
Recently Browsing 0 members
No registered users viewing this page.