Can anyone plz explain to me the steps I can take if I just got an atv that doesn't run & hav no clue what's wrong and just wanna make sure the engine is good and bike is operational? Ideally I wud love to find out the easiest & quickest way to bypass everything (all electric & non- important parts) and maybe hotwire it quivk enough to just make sure it will run. Like what are the basic elements needed to make it run? Basically I need sum type of troubleshooting chart for someone who wud like to get into rebuilding them as a hobby. Any help wud be amazing of u to giv. Thanks.

 

Can't be done, there are so many different electrical systems employed by manufacturers, and you have to know what system your bike has.
As for checks, does the starter work? if not, sort that out first.
If the engine is spinning over but not starting, check if you are getting a spark by removing the plug, re-fitting the plug lead and laying the plug on the engine, spin the starter and see if you get sparks.
If you are getting a spark, check the compression with a tester, under 90psi and it may be bad to start.
If you have a spark and compression but not running, clean the carb out. I don't go for new parts unless something is worn inside the carb, dismantling and a good clean with compressed air will usually sort it.

 

Im currently working on a 1989 Suzuki Quadrunner LT160EK. Vin # is ( KM4AG42A5K1103681 ). Can you or anyone else on here help me out with a wiring diagram or anything else I can use to help me rebuild/repair it? Keep in mind I hav no bank accounts and no access to debit cards or anything like that. So i wouldn't be able to buy anything or pay to join anything to get it. I was really hoping for a good old fashion nice person to take pity and giv me for free. Lmao And thank u so much for your reply, it means alot ☺

 

I don't think you need to "bypass" everything to diagnose. Any engine needs the following:
1) fuel/air mixed properly
2) compression
3) spark
4) the above happening at the right time (timing)


I generally start with spark...it's easy to test (ground plug to frame) and covers the "electrical" part...


Compression tester will test compression or just put your thumb over plug hole...good compression will pop your thumb off...


Fuel - if plug is wet when cranking...it's getting fuel. Getting the right amount is a different issue. If you have spark & compression it should run on starter fluid easily (given timing is ok)...if you're confident it has good spark & compression but wont run on SF, then I'd look at timing...


Runs on SF, but not without - this now is a fuel delivery issue...since you didn't mention the machine type can't offer much else...

 

not sure about that machine. But on all the machines i worked on the Black/white trace going into the cdi i remove. This bypasses all safety switches. But only do this if you have no spark. It will tell you if one of the safety switches is bad... But go over the basics first as stated above