So I am trying to find a coupler to mate up the 2.5 intercooler piping to the tb and nothing seems to fit. I tried a 2.5 coupler on the tb and it wouldn't fit and a 2.75 seems too loose. What size are you guys using? The od on the tb measures 2.6ish.

 

On stock B series throttle use 2.5" coupler.

This is 2.5"

https://honda-tech.com/attachment.ph...1&d=1390438374

 

use your muscles...

 

Maybe I just need to heat the hell out of it first.

 

The coupler on the TB is always a bitch...put a little windex on the inside of the coupler and it will slide over the TB a bit easier.

 

I must have the perfect size it's like sliding on an intake

 

LOL I easily stretched a 2.5" into my 72mm TB no problem.

 

Time to hit the gym OP.

 

Yeah i was going to go with the "if it dont fit, dont force it" rule... but i guess not.

 

you have to stretch the 2.5 to fit. in this cold weather you'll have to *gently* heat the coupler or use some lube on the tb.

 

Use Lube. I like WD40 because it dries kinda Sticky.

Also, you can use a screwdriver to pry over.

 

Thats the same reason I always used windex...its slippery at first, but gets tacky/sticky when it dries.

I would be careful if you decide to use a screwdriver...its pretty easy, especially with a flathead screwdriver, to poke a hole in the coupler or tear it along the edge.

 

Yeah i figured out this awesome way to not use screwdrivers when doing this kind of stuff... bike tire levers! Man... riding bikes for 20ys and i never made a connection.