Honda TRX250R Forums banner

1 - 11 of 11 Posts

·
Registered
Joined
·
151 Posts
Discussion Starter #1
hey guys, so heres my question, maybe somebody has had this also. I am running a PC2000 pv top end, pyramid reed valve, and 38mm air stryker. anyways, I heated up the air box boot, put it on the carb no problem. i then heated up the intake boot, put it on the carb no problem. I then went to install it all, and everything is fine, the problem is that the air box boot does not fully reach the airbox itself. so, i then installed a reed spacer to "push" everything back a little, and the air box boot fits fine. It also runs well. the problem is that Duncan is telling me NOT to run the reed spacer, in that Im losing a lot of power, especially low end. But I dont want to risk a airleak between the airbox boot and the air box. What do you guys think? I was also thinking I could modify the airbox mounting a bit to move it forward more. anyt houghts? I included a pic of an extra irbox/boot I have. This is what it looked like when I tried to mount it without the reed spacer: you can see I could not get it to fully seat, and Im afraid when I clamp it down with a hose clamp, it will make it slide off.



 

·
Registered
Joined
·
769 Posts
if you're heating it up, i take it that it's old and hard? either get a new one or soak that one in alcohol to soften it up a little.
 

·
Registered
Joined
·
151 Posts
Discussion Starter #3
if you're heating it up, i take it that it's old and hard? either get a new one or soak that one in alcohol to soften it up a little.

i had to heat up the other end of the air box boot to fit on the larger 38mm carb. thats has all worked out fine. My problem is the airbox boot beaing able to fully seat on the airbox without a reed spacer.
 

·
Registered
Joined
·
206 Posts
try soaking it in hot water to soften it up then clamp it on the carb then stretch it to fit.
 

·
Registered
Joined
·
3,565 Posts
i had to heat up the other end of the air box boot to fit on the larger 38mm carb. thats has all worked out fine. My problem is the airbox boot beaing able to fully seat on the airbox without a reed spacer.
I doubt you can make it work w/o a reed spacer .. both my motors have the reed spacer & it was a close fit with it ..boot to air box & btw do you have the air box ring ??
if not better get it ;)
...& using a good (not old & hard ) boot is the key here
 

·
Registered
Joined
·
151 Posts
Discussion Starter #6
I doubt you can make it work w/o a reed spacer .. both my motors have the reed spacer & it was a close fit with it ..boot to air box & btw do you have the air box ring ??
if not better get it ;)
...& using a good (not old & hard ) boot is the key here

oh yes, i def. have airbox rings installed. yeah, on both my other R's I have 38mm airstryjkers, and I needed the reed spacer for proper and secure fitment. but Loren really pushes not to use a reed spacer.
 

·
Registered
Joined
·
3,565 Posts
ever ask him to explain or how much he claims your loosing ?
or well more options ..
mod the boot .. cut extend a 3 peice boot
..lt500 boot ?
make a boot
put the boot in "traction" LOL

...relocate the airbox
 

·
Registered
Joined
·
151 Posts
Discussion Starter #8
ever ask him to explain or how much he claims your loosing ?
or well more options ..
mod the boot .. cut extend a 3 peice boot
..lt500 boot ?
make a boot
put the boot in "traction" LOL

...relocate the airbox
yes, he said something about it messing with the air turbulance, and overall power, especially down low. But I think I came up with a solution, good ol Home depot to the rescue...... B)
 

·
Registered
Joined
·
30 Posts
i was just going to start a post about this problem. i am having the same issue for the most part i just cant get my boot to fit onto my carb. i have a 38mm mikuni tmx carb and i cant get the boot to airbox to fit. any ideas, anybody make anything that fits right on the bike? do i just need a stock oem new boot to make this work? i have the esr rb2000 reed block with built in spacer and i have to pry just to get the carb in between the two anything that can help will thanks. brian.
 

·
Registered
Joined
·
2,042 Posts
i was just going to start a post about this problem. i am having the same issue for the most part i just cant get my boot to fit onto my carb. i have a 38mm mikuni tmx carb and i cant get the boot to airbox to fit. any ideas, anybody make anything that fits right on the bike? do i just need a stock oem new boot to make this work? i have the esr rb2000 reed block with built in spacer and i have to pry just to get the carb in between the two anything that can help will thanks. brian.
Did you ask ESR what they recommend? My Mikuni TMX from esr has an airbox adapter ring pressed onto it. If fits perfectly with cr reeds, cr boot, no spacer, and tmx with adapter ring. Maybe they have an adapter that fits with the RB2000 reed block or you can get a RB2000 without the built in spacer. My uncle had one. They might tell you that normally the RB2000 with spacer is normally used with the airbox eliminator kit.
 

·
Registered
Joined
·
413 Posts
when your stuffing a 38mm carb into a boot designed for a 36mm theres a fair amount of work involved. anything to heat up the boot and stretch it works. blow drier, hot water etc. then its just muscle it on. i recommend stretching the boot on, with the carb off the bike. after a little while the boot becomes permanently stretched and its no big deal taking stuff on and off.
 
1 - 11 of 11 Posts
Top