Nope you read wrong sir,
I had 1 engine NOT 2, that I wrecked running it WOT for several miles with an oil/fuel mix at 70:1 and this oil wasn't designed for that lean of a mix, the engine was brand new and it locked up due to my running it too long too hard on too lean of a mix.
Then this
very same engine failed again after 420 miles after a complete rebuild, the only part that wasnt new in this engine was the crankshaft, which I bought from another member here used, it looked to be in good condition, but the block that it came out of looked like it had 10,000 miles on it and had been broke in multiple places and had new holes drilled and tapped in it where originally there were no holes, I assume this was for mounting the engine somehow after the mounts had been broken off.
I was a little leary of the crank all along, and that crank was very out of balance from the very start, it would numb my hands, butt & was even rough on my feet if I ran it very hard for very long.
So to sum this all up, this BGF engine was just fine until I trashed it with the lean oil mix and the long distance for too long when it was new and tight.
I truly believe this last failure was due to the huge amount of wicked vibration that this engine had after the rebuild because of the used junk $30 crankshaft I put in it...... I completely believe that if I had just ordered a new crank from BGF for $20 I would still be running and enjoying that engine as we speak, I put a used baddly balanced crank in the engine instead unknowingly and this was it's demize in my honest opinion.
I know you may differ and that is fine, but I will put the engines BGF sells up against any of the others because they all come from the same place & are made from the same cheap materials......some people on here hate all the Grubee engines because they have had several of them that were junk, and some hate the Stingers, and some hate the RAW engine, and so on and so on.............they are all crap shoots........you can get a good of any of them and you can get a bad, you can also trash a good one like I did.........that engine was smoothe and ran like a scalded ape until I did what I did to it, I was a noob to these engines at that time and just gave her more blues than she could handle.........plain and simple, it wasn't the fault of the engine, it all sat on my shoulders.
I dont know where you got the 6 from because I've only had 4 and I killed the 1 of that 4 because of lack of knowledge of these engines..... I had 2 bikes built and running before I had ever even heard of this forum, I didn't have any advice of point of reference at that time so I screwed it up because of this lack of knowledge.
Send me your best engine and let me treat it the way I treated that one and I'll send it back to you siezed up and junk.....guaranteed!!!
None of them will take what I did to mine.
Peace
I thought I read that 2 of your 6? BGF motors blew up on you......maybe more.
2 out of 6? That is not good odds.