JMaN05

^my point proven.

I think some people just have nothing better to do than argue online. Funny after all that back n forth nonsense, now asking opinions of eachother!! Hah! I for one who sometimes had to make custom pipes for custom motor swaps, PC would come in handy. Alot better than spray painting parts for clients. As far as not breathing. You might have to dip in the savings for some in frame drag pipes, IMO.

But seriously. After motor is built. I change the oil after 5 hrs of use. Of break in period. Much like changing your oil on a brand new vehicle after break in period. (1500-2000miles.) then continue with you normal interval. Btw. Atv is sold Thanks evryone!

Yea. You definitely are. Because if you dont put gear oil in your bottom end you're fucked

I do not sorry. I have videos of it idling i can txt anyone interested Thanks

Thanks to the help of guys on the forum. I have this baby up and running 100% I have 34 pics on my phone of the whole build. Txt for more pics Thanks

Started off with a 2001 banshee. Decided to rebuild whole motor. No expenses spared. Shes just now about broken in and ready for first oil change. Stainless steel engine bolt kit. New 4mm stroker, welded, trued and balanced crank. 115mm long rod. 65.5mm bore. 391cc. Engine overhauled. All new seals. Hinson clutch basket and cusions. All the fun stuff. Billet waterpump impeller. Pro design cool head, 19cc domes. Picked up a chariot racing intake and reed cages. Boyseen stage 2 reeds. 35mm pwk carbs. Mounted up with some fmf sst pipes and silencers. I run 98 octane. Finally jetted perfectly. To the chassis. Started off with a 04 yfz450. Only part original is the frame. Mounted up to a 6 point subframe. Fox floats up front. Fox podium x rear. Metalcraft LT arms. Stock 06 swingarm. Oversized rad. Tusk axle. Tusk steering stem. Steering stabilizer. Ac nerfs and grab bar. Dg bumper. Laker custom plastics. Tires are like new. Dwt front rims. Hyper beadlock rears. 450r thumb throttle. Stainless brake lines. Tm designworks rollers. Bunch of other misc upgrades Ive owned every sport quad. Honda, suzuki, yamaha, gas-gas, cannondale, hybrids, Couple Side x sides. Etc. this is the quickest offroad machine ive ever rode. This is the R1 of atvs. Unnecessarily fast. No expenses spared building this machine. Motor professionally built. This is one of a kind. No joy rides. Cash must be in my hand before riding. Cash sale. Price is $5000 FIRM. Only trade for a wrx, v8 sports car or v8 sports sedan. Must be manual. Or a polaris rzr Five70-856-219zero Thanks for looking. Happy holidays

Thanks guys. To tap it i would have to remove the head tho so no shavings fall in? Also i tried riding again today. It started leaking coolant sooner this time. Which is weird because today is 10* cooler outside. However, this time i see coolant and i cant tell where its coming from. I see dripping from the very bottom of the top coolant hose. But nothing wet above it. First thought was a loose clamp. But i tightened everythng before todays test. So i suppose it could be leaking from nipple still and just dripping down center of head onto hose. Possibility. Cause there is coolant on my frame under pipes as well. However, there is no hissing out of the nipple this time. Just coolant. I would second that my cap is not strong enough under pressure. I used a rubber cap and zip tie. Altho, i did use the same caps to seal off vaccum lines for exhaust diverters on cars. Prob less pressure tho..

I am running rich at the moment. Still dialing in the jetting. But i would guess over heating relating to jetting would be if i was lean correct?

And yes. After i rode for about an hour. Upon shutting off the engine, hissing and slight leaking came from that nipple. Any ideas/help is much appreciated.

when i asked if i need a better cap, im referring to the nipple i cappped that i mentioned in the same post.

Everything i posted is pertaining to the vent nipple on the top of the head.

So i capped the nipple on the top of the head. After riding for a little over an hr. Air was hissing out for about 5 mins and i lost 2-4oz of coolant ouut of there also. I thought maybe it was a good thing and air was just getting out of cooling system. Like it bled. But then i thought perhaps it got too hot.. Seems like a symptom of over heating... Any idea? Do i need a better cap? Was it just bleeding? Or this overheating? Side note, what is a safe temp range on these babies