Quick back story, i bought a yz450 on craigslist, i never really got to ride it because it had issues( i didnt know that at the time)it wouldnt easily kick over and then it wouldnt start. I replaced the timming chain and cams and it fired right up then it dropped a valve seat and destroyed the head and piston and jug due to who ever reconditioned the head forced one of the intake valves in the guide( i was told when i bought the bike the head had just been rebuilt). Heres where im at now, currently the bike has new shifter new brake foot brake lever new tusk pegs, i have stage 1 hotcams for it, a jd jet kit, new air filter, the plastics are farely new, new seat, new grips, tires are in pretty good shape, it has after market wheels already, the clutch and basket are all newer and performance. so its got a bunch of new stuff most of which i have bought and some came with the bike when i got it but ive priced out a head(new) and jug kit(480cc big bore) and it around 1700$ for what i want and to have the bike to really where i want it its about 3K$ total thats with a full exhaust and graphics and different color plastics and a few minor other things. My question is should i continue with it or cut my losses, ive had someone offer 1000$ for the bike as is and so far with what i paid for the bike and what ive spent in it im sitting around 2600$ invested. I trail ride and dont have tons of expierence but i have road my buddys ttr225 and drz 125 ( which are all fun but IMO rather slow) and also my buddys yz250 2stroke which is almost alittle to much but i account that to it being a 2stroke with its on and off throttle reponse. I own a grizzly 700 atv and also like atvs and now im thinking of just dumping the bike and going with a raptor 700 or somthing along those lines. So its either continue to roll with the project and invest atleast another 1700$ ontop of the 2600$ ive put into it just to get the bike running and then later spending more to get it exactly how i would like it or cut my losses and sell it for around 1000$ maybe more or less depending and look into getting a raptor. I havent been riding for years and i dont mx so idk if a bored out yz450 is going to be for me for hitting the trails. all thoughts are welcome THanks! heres the bike before i took it back apart to to see if the head could be repaired which it cannot.