Total Noob needs to know where to start.

Hello folks. First let me start by stating that I am not only a Polaris noob but a ATV noob as well. Ok so the back story goes like this. My buddy bought a house some years back which included a barn. Inside that barn sat a Polaris Scrambler 400 4×4. This is all we know about it, other than the fact that it is white with purple graphics. So we started tinkering with it, found out the electronic start doesn’t work, no so much as a click noise or anything. We attempted this on a jump start from a car as there was no battery in the quad. It will start with the pull starter but wont idle on its own, you have to feather throttle. It has very weak brakes but other than that seems to be ok. We (buddy and I) want to start fixing it up. So here is the questions I have.

1. How do i find information on this thing like year, and engine (if there is more than one 400)

2. Where is the best place online to buy parts. Money is not an object as I know that you get what you pay for. What im looking for is the BEST place to buy (ie best selection, best quality stuff like that)

3. Where can I get manuals, shop manuals or any other texts on how to do repairs on this thing as I have no previous experience with ATV (car knowledge yes, atv knowledge no)

Thanks in advance, any guidance is appreciated.

Total Noob needs to know where to start.

Hello folks. First let me start by stating that I am not only a Polaris noob but a ATV noob as well. Ok so the back story goes like this. My buddy bought a house some years back which included a barn. Inside that barn sat a Polaris Scrambler 400 4×4. This is all we know about it, other than the fact that it is white with purple graphics. So we started tinkering with it, found out the electronic start doesn’t work, no so much as a click noise or anything. We attempted this on a jump start from a car as there was no battery in the quad. It will start with the pull starter but wont idle on its own, you have to feather throttle. It has very weak brakes but other than that seems to be ok. We (buddy and I) want to start fixing it up. So here is the questions I have.

1. How do i find information on this thing like year, and engine (if there is more than one 400)

2. Where is the best place online to buy parts. Money is not an object as I know that you get what you pay for. What im looking for is the BEST place to buy (ie best selection, best quality stuff like that)

3. Where can I get manuals, shop manuals or any other texts on how to do repairs on this thing as I have no previous experience with ATV (car knowledge yes, atv knowledge no)

Thanks in advance, any guidance is appreciated.