U70921933 Whats my bike worth

http://www.vintagemongoose.com/frame/serials.php

This will tell you more about your bike. The value is what someone is willing to pay for it.

It's worth what you paid for it. If you found it, then with no brakes and probably repainted (which is why you have only the serial number) it's not worth much at all.

I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

Hi,

If the engine will run for twenty mins then just stops it may be worth checking the air vent to the fuel tank. Dirt bikes often have a small plastic tube fitted to the petrol cap to allow air into the tank. Sometimes the tiny hole in the fuel cap ( Which most bike have) gets blocked and the engine will run until such time as the vacuum in the tank stops fuel coming through. Got to be worth a check.
Cheers Stan

Value is based on many things such as condition, color and tires. The best way to find out whats its worth is looking at craigslist in yourarea or ebay sold section

please watch video!

check for a loose wire on the relay or battery, or selionid

If you want to buy a NEW dual-suspension mountain bike that is worth buying, be prepared to spend at least $700 dollars. A GOOD dual-sus bike will run upwards of $1500 and a very nice one will be over $2000. Anything new for under $500 is generally rubbish and money down the drain. The components will be bad, the manufacturing will be bad, the frame will be bad and it will no doubt be problematic if ridden more than occasionally on the street only. i might suggest looking at bike forums or craigslist for a used bike made by one of the reputable manufacturers like Giant, Trek, Specialized, Cannondale or the like. Bargain bikes are not a bargain at all, but money down the drain.

i hope this helps,
matthew

For what it´s worth I have noticed what appears to be better rear-veiw from the left hand mirror and have got into the habit of tipping the bike if I´m desperate to see whats going down on the right of the bike. I beleive EMGO have a good selection of aftermarket mirrors and IMHO it would be a simple job to measure the centres of the existing mirrors and see whats available in something with a longer stand. Suzuki are great ones for adopting the universal fit theory... so there is bound to be something out there that will suit your needs If you get stuck, sing out, I´m happy to see what I can dig up...