Smoking 440

[dbarbitta]

I just got my 440 together and smoke is coming out of the head pipes, what is wrong...please send comments

[exrider008]

what color is the smoke? mine allways smokes a little after i rebuild it. just go for a little ride and see if it goes away.

[lpmaster]

coming off the head pipes?.......theres probably just oil on the headers from your hand or something it will stop eventually

[400EXTRA]

that is what happens when you bore a machine you will be rebuilding it in a couple of months you should have just left it stock.

[400eXr1d3rZ]

Originally posted by 400EXTRA
that is what happens when you bore a machine you will be rebuilding it in a couple of months you should have just left it stock.

You're an idiot.

[PismoLocal]

Originally posted by 400EXTRA
that is what happens when you bore a machine you will be rebuilding it in a couple of months you should have just left it stock.
^ :rolleyes:
When built right big bore 400ex motors are very reliable.


Originally posted by 400eXr1d3rZ
Your an idiot ^ lol x2

To answer the original question there are two copper crush gaskets (one for each pipe) that are inbetween your headpipe and your exhaust ports. Sometimes when you take off your head pipe and put them back on they don't seal correctly. I had the same problem a couple of times. You might want to try either re-tightening your head pipe of buying new gaskets. They are pretty cheap around $5 if I remember correctly.

[hornetgod13]

Originally posted by PismoLocal
^ :rolleyes:
When built right big bore 400ex motors are very reliable.

I hear that time and time again but, I always read about 440 problems. I wouldn't ruin my engine doing it.

[400eXr1d3rZ]

Originally posted by hornetgod13
I hear that time and time again but, I always read about 440 problems. I wouldn't ruin my engine doing it.

Not everyone can take care of a motor.

[hornetgod13]

Originally posted by 400eXr1d3rZ
Not everyone can take care of a motor.

I'm willing to bet that a stock 400 engine would outlast a 440 modded engine if maintained and riden identically. Most everyone that would argue otherwise would mostly likely have already modded their motors and would just be defending thier decision to do so.

Additionally, why did you call someone else an "Idiot" when their opinion differs from yours.

[400eXr1d3rZ]

Originally posted by hornetgod13

Additionally, why did you call someone else an "Idiot" when their opinion differs from yours.

Because it was ignorant.

[JOEX]

No need for the name calling:ermm:

If you're not able to post something usefull don't click the reply button.

[PismoLocal]

Originally posted by hornetgod13
I hear that time and time again but, I always read about 440 problems. I wouldn't ruin my engine doing it.
I think that the reason there are alot of 440 problems are because a lot of people that do 440 builds skimp out on buying the other parts they need to keep it reliable. 440 "kits" come with gaskets, sleeve's, and pistons and usually cost around $200-$250. But they don't come with oversize oil tanks $120, HD studs which are around $120 if they are installed at a machine shop, HD cam chains $27, or accurately Torqued bolts on the head PRICELESS :D. People don't think they need those things to keep it reliable. Some times you don't need those parts and it will run with no problems but it seems that more commonly you do, IMO they should be installed on all motors that have modified internals.