megabomb header melting airbox issue
Senior Member
Joined: Feb 2011
Posts: 628
From: Northern Kettle Moraine
1st Gear Member
I agree. Loosen all the bolts on the system, wiggle it around to get the best fitment/clearance and start to tighten at the front and work your way back. I have no melting, but did find I needed to add a washer at the front muffler mount as it did not sit flush when test fit. If I had not done that it may have pulled in too close to the airbox? FMF does seem to have alot of fitment issues on various bikes.
Senior Member
Joined: Aug 2011
Posts: 516
From: Phuket, Thailand
1st Gear Member
I think the airbox on the efi bike is slightly bigger or lower than the US carb model from what i've seen in pictures on here.
I wasn't feeling the lowering brackets when my mechanic suggested them, I figured it would be a temp measure but that was 10 months ago & there still rock solid & looking pretty permanent now.
I wasn't feeling the lowering brackets when my mechanic suggested them, I figured it would be a temp measure but that was 10 months ago & there still rock solid & looking pretty permanent now.
Senior Member
Joined: Jun 2008
Posts: 1,392
From: So Cal
1st Gear Member
Not much else you can do to get the needed clearance. Lowering brackets seems like a decent solution. The Powerbomb header doesnt have the same issues when running a two bros canister.
Senior Member
1st Gear Member
Joined: Jun 2011
Posts: 1,135
From: San Francisco, CA
did a really long ride on freeways at 80+ mph...and some twisty mountains...heatshield prevented pants from melting...airbox okay...but, temp were 60s today...not a great test ride
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Joined: Jun 2012
Posts: 91
From: Australia
What sort of heat shield are you using?
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Joined: Dec 2011
Posts: 366
From: Seychelles
hmm...installed the megabomb today and i don't see the header pipe even coming close...the slip-on pipe connects and that pipe only one the appears close to the airbox...unless the heat from the megabomb is increasing the overall temp of the exhaust pipe and muffler....hmmm....i'll keep a close eye on mine...i may just wrap the the entire header and muffler pipe....can't believe my pants started melting so quickly...not sure if the heatshield is going to be enough...
Senior Member
1st Gear Member
Joined: Jun 2011
Posts: 1,135
From: San Francisco, CA
updating both megabomb threads..haha...but, yes...the fmf heatshield is working fine for now...i don't think i have any hot weather coming up to test it in hot weather...sf tends to be cooler...
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Klxster
KLX 250S
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May 30, 2014 06:08 AM
