OzVMX Forum

Clubroom => Tech Talk => Topic started by: maxi81 on March 29, 2013, 05:09:42 pm

Title: Air intake boot
Post by: maxi81 on March 29, 2013, 05:09:42 pm
I purchased a new mikuni carburetor but the air intake boot is to small to go over the carb. Is there any aftermarket manufacturers out there? Or any tips would be appreciated.

Thanks
Title: Re: Air intake boot
Post by: mainline on March 29, 2013, 05:53:51 pm
Is it way too small? A bit of work with the heat gun or hot water could soften it enough to fit if it's close. Maybe some rubber friendly grease as well.
Title: Re: Air intake boot
Post by: maxi81 on March 29, 2013, 05:58:36 pm
It was only a few mm to small. I put the boot in hot water and I think it has shrunk even more :-[ I might try some rubber friendly grease. Thanks
Title: Re: Air intake boot
Post by: craignduke on March 29, 2013, 06:02:03 pm
KY it has many uses ::)
Title: Re: Air intake boot
Post by: mainline on March 29, 2013, 06:40:59 pm
Quote from: maxi81 on March 29, 2013, 05:58:36 pm
It was only a few mm to small. I put the boot in hot water and I think it has shrunk even more :-[ I might try some rubber friendly grease. Thanks

You did try to fit it while it was still warm?
Title: Re: Air intake boot
Post by: SLAWESY on March 29, 2013, 07:18:41 pm
Quote
It was only a few mm to small. I put the boot in hot water and I think it has shrunk even more  I might try some rubber friendly grease. Thanks

You did try to fit it while it was still warm?

Sounds like one of your late night activities involving the Gymp outfit that you are getting too large to fit into.... apparently... so Walshie said...

 ;D
Title: Re: Air intake boot
Post by: mainline on March 29, 2013, 07:33:45 pm
Quote from: SLAWESY on March 29, 2013, 07:18:41 pm
Quote
It was only a few mm to small. I put the boot in hot water and I think it has shrunk even more  I might try some rubber friendly grease. Thanks

You did try to fit it while it was still warm?

Sounds like one of your late night activities involving the Gymp outfit that you are getting too large to fit into.... apparently... so Walshie said...

 ;D

It's spelt Gimp, and it's too sticky when it's warm
Title: Re: Air intake boot
Post by: Andrew L on March 29, 2013, 10:44:58 pm
Putting into a bag with glycerine for 2 or 3 days will soften it greatly worked on my Yamaha intake
Title: Re: Air intake boot
Post by: ChrisACT on March 29, 2013, 11:05:52 pm
What size carby are you trying to fit to what engine?  A few specifics might help us find an answer to your initial question about aftermarket intake boots.

In other words, yes aftermarket items exist for some models.  But we don't know what you've got so we don't know if you can get one.

  :D
Title: Re: Air intake boot
Post by: Montynut on March 29, 2013, 11:28:47 pm
If you are replacing a Bing carbie with a Mikuni there is a large difference in the inlet size with the Mikuni being some 15mm bigger in inlet diameter. It is a problem on all conversions. What type of bike?
Title: Re: Air intake boot
Post by: pancho on March 31, 2013, 04:58:06 pm
Quote from: maxi81 on March 29, 2013, 05:58:36 pm
It was only a few mm to small. I put the boot in hot water and I think it has shrunk even more :-[ I might try some rubber friendly grease. Thanks
Detergent or KY.
Not ANY grease. It will just pop straight off again.
Title: Re: Air intake boot
Post by: maxi81 on April 01, 2013, 05:22:28 pm
The bike is a 1980 RM 400. I used my wifes hairdryer and got the boot on the carby, but needs to go on a bit more as the new carby is a fraction longer. Will keep trying though. Thanks for the replies