| Author | Message | ||
     Glitch |
Hey y'all. A friend of mine (New12r) and I were given a little project not long ago. Another friend of mine bought a raffle ticket for a chance to win a Blast. He bought one $10 ticket. He won! After getting the bike home he decided to paint the bike and get it cleaned up, as the "new" bike was previously owned. This bike came with the Pro series intake, and exhaust. What a nice sound! While cleaning it up he noticed a small oil leak and wanted to get it fixed. That's where Charlie (New12r) and I came in. It was a base gasket that was leaking. After we got the engine apart we noticed the cylinder was scarred. Soon after we noticed the piston was in pretty rough shape as well. Looks like it ran pretty damn hot because of the lean condition caused by the Pro Series equipment minus re-jetting the carb. So this is a warning to anyone that wants to take a short cut to nicer sound. (People that want power don't take short cuts do they  ) If you let more air in, and free up the exhaust, you must re-jet I know this has been said before, just thought I'd drop in and say it again. Pictures to follow real soon. Keep on Thumpin'! These really are great bikes, and I always have a great time each and every time I throw a leg over one, I will own one asap! | ||
| Naustin |
The pro-series gear specifically was probably not at fault. Only a collateral cause. The likely cause of the excessively lean conditon was actually most likely a torn intake boot. This is a common problem when you use the pro-series intake. As long as the boot is good, the intake and the exhaust alone will not cause the mixture to become so lean as to cause damage, but a re-jet is the best idea. However, the pro-series intake will cause boot failures, and if you don't fix THAT, you will destory your engine. | ||
| Ezblast |
Concur!!!!!!!!!!!!! | ||
| Totolandman |
Ezblast, Can you elaborate more regarding the Pro Series intake boot failure. I have recently installed the Pro Series Intake, re-jetted along with the Vance and Hines Pipe, Iridium plug, performance wire, Pro-Series cams, and HP oil pump gear drive. What do I need to look for on the intake? Cheers, Robb | ||
| Gearheaderiko |
Though you didnt ask me.... Look for cracks in the rubber intake 'boot'. When you remove the stock airbox you now have an unsupported carb. With the ProSeries intake all the weight of the carb and filter is hanging on the rubber intake coupling. That can cause premature failure of the intake 'boot'. The stock airbox supports the carb from both sides. It is recommended to install some kind of brace or support with the carb. EZ uses springs. Some use brackets. Some use no additional bracing (like me). Using the PS intake unbraced does not guarantee 'boot' failure. It does however greatly increase the chances. (Message edited by gearheaderiko on February 25, 2008) | ||
| Ezblast |
Concur | ||
| Buellistic |
use a "PRODUCT IMPROVED" AIR BOX as it supports "DAS BOOT" and stops failures if properly intalled(the boot that is) !!! IMHO it is more "FUN" to ride !!! | ||
| Muckerpuck |
how much difference do you think there is between the the ez airbox mod and upgrading to a different intake. i just had a different idea for an intake, what if you used 3" pvc and a couple of 90 elbows and put a stack in the stock box location.cutting up the stock box to make mounting brackets for the new stack?????? do you think 3" pipe would be restrictive.... or is this idea just whak | ||
| Ezblast |
Why not just do the Phase 2 mod I outlined, using the gutted box - with the filter-support wall area gone facing the carb, and a stack filter clamped to the Venturi/factory-stack. Scot has ran his for years now, no boot problems and he can still hear a slight huff at shut off. EZ | ||
| Gearheaderiko |
I think just whak  Seriously the biggest air filter you can find combined with a stack is the best set up. I really couldnt tell you which is better (airbox mod/different intake. The biggest reason (for me) to go with something like the ProSeries is convenience-easy acces to carb and carb removal.I dont think you can improve much on whats been done with the gutted airbox methods. | ||
| Muckerpuck |
 i was drinkin this messed up tea man.... | ||
| Gearheaderiko |
Drinkin or smokin? Really, creativity is encouraged. Some really whack ideas sometimes bear awesome results. | ||
| Gbaz |
3 inch should be fine. Unless you have a really tricked out blast 72cfm is the max you should ever need, if i did my math right that is . Having a wider tube and a smooth reduction into the carb should be even better. volume in always equals volume out a smooth reduction into the carb should increase the airs velocity, and that may lead to better fuel mixture. |
