airprene

i use castrol 20 50 dont know if thats good but it makes it shift smooth i have a f4 but yea i can rock wheelie for miles and my bike seems fine but i dont do second gear a lot i use 3rd and i am like 8 to 12 k in revs just depends on how hard the wind is blowing ad if i can get the balance right

not_me

Synthetic is good for ryding, but stunting I dunno. I would never use a thin oil in my bike ever. They run hotter, take more abuse..... Run some good ol' thick oil, especially if your weather is warmer and you should be ok next time.

Motors do blow though, and I highly doubt it was the pickup. Maybe you missed a screw, got a small leak and hit some major highway standy's?

I messed up my gixxer trying to slow down in second on the highway, but it didn't blow then, it blew around two weeks later riding home from NYC.

Good luck man



Camo Mike

Lb3

hah.. back in the day before the pickups and when I was rocking a gixxer, I blew 3 motors in a row trying to slow down 1st gear highchairs with shitty gearing and no hb.. memories.

meddling kid

that sux man - I've never heard of an F4i motor blowing up- throwing a rod seeems a little extreme

anyway, I got an 01 motor with a bent crank (just the section that the flywheel bolts to) if you want for $200 plus shipping - your call - it's in Jacksonville Fl.


PM me if ya want

Spencer75south

i already bought one. but thanks for the offer. ****, if i had an extra $200 id buy it just to have a spare (minus the bent crank)

SAMBO

Blown motors happen to everybody that stunts. But your young and full of ***. So you will get back on the ball soon. goodluck!

yzfrone

could be cam chain tensioner going REALLY bad and throwing the timing...

detonating the bike.

check your cam chain...

kxrider

that sucks you can proly score a new motor for 500

Lb3

I guess we never updated this. Spencer brought the bike over and we put a new motor in it. Pulled the head off of the other motor and found it was because of rod failure. The bearing was laying inside of the bottom case and was not spun. The bearing looked mint other than it being tossed around in the motor with a broken rod before throwing most of it through the front of the block.

SAMBO

Thank you LB32D2

955iDisastar

But why did the rod snap??? Could it be from lack of lube to the grugeon pin (small end) of the con rod????? How did that look?

And how come no-one from stuntex will answere my e-mails, posts, pm's... are yall still selling pick-ups?

JOHN J

i have an engine with a messed up transmission and it needs a clutch(complete) ill get rid of it if you want make me an offer. if you i guess you can piece it together with mine and yours.................

give me a call 910 273 8490
john

Lb3

Nope, the small end was ok as well. The rod just broke. It could have been from the engine being hydrolocked earlier that day. It wasnt due to oil starvation though. I looked at the bearings on both ends and they were not worn, burned or scored. I have seen my fair share of spun bearings and know what one looks like.

stuntex emails: I need to take ryans email off of the site. He doesnt even know how to check his email and I dont have time to show him. I work 60+ hours a week managing 50+ servers and over 600 workstations which makes it hell to check and reply to every email I get. I try. I dont make any money from it so I dont have alot of motivation.

sprocketz

right after i put all new farings on my gixer the motor blew up i think its cuz of those farings

Spencer75south

lol the added weight caused too much stress on the motor.

Kyle_PBZ

Andy is on his second motor. First one had about 30,000 on it, second has got close to that. ALL HARD, REVLIMITER, HIGHWAY AT 12,000RPMS, ETC... He also NEVER changes his oil. So who knows.

Spencer75south

my motor blew becuase it SEMI-hydro locked probally about 2 weeks prior to it blowing. then after about the 2nd mile on one wheel at like 10K rpm's it snapped.

DoodleF4i

i saw andy tonight..bikes still running .. my motors got 23k miles no pick up and i rock 3rd gear stand ups for miles..rev limited spreaders on the highway..still seems to run fine..tho ill prolly get a spare motor just in case.

Skunky

did the same to mine last night i'll post pics tomorrow.... flipped the bike over landed on the handle bars and tail (completely upside down)
I have a kill switch so the bike stopped running...turned it back over let it sit went to start it and booom like a small gun the rod flew threw the back of the motor causing an expolssion of oil....sooo pissed off!!!

oh well the motor swap begins tonight...is it hard???

I have done one before by myself on a 99 r6...never anything else though???

wish me luck!