intake boots, can I make them larger?

Hey everyone, Im swapping up to 28mm carbs on my 810 project, My question is, can I make my intake boots larger to accept the larger carbs? something like "boring" out the intake boots? can this be done to rubber easily? or should I just get the larger boots?(for $70)
Any imput would be appreciated. thanks
Scott

i know you can shove 29s into stock k1000 boots for 26mm carbs. goodluck,happy wrenching!

wireman wrote:

i know you can shove 29s into stock k1000 boots for 26mm carbs. goodluck,happy wrenching!

Whats the OD of the 26 carbs?

I have a set of J model carb holders that I got from Z1, and I'm pretty sure I paid ~$40 for a set of four.
You have to elongate the bolt holes to make them fit though.

I checked and they are now $48.80, still a lot cheaper than $70 though.

www.z1enterprises.com/detail.aspx?ID=314

Post edited by: steell, at: 2006/04/06 19:02

The VM29 and VM28 OD is actually smaller than the OD on a VM26. All fit the same intake manifolds. You can't enlarge an intake manifold. You need to buy new ones. The mount holes are slightly different width and will need to be elongated.

Actually a Rat biker could enlarge a intake rubber. I found a piece of pipe the appox. size i needed and heated it up with the torch and Wa-LA,Inlarged boots. Please be in a well ventelated area. Roy:woohoo:

steell wrote:

I have a set of J model carb holders that I got from Z1, and I'm pretty sure I paid ~$40 for a set of four.
You have to elongate the bolt holes to make them fit though.

I checked and they are now $48.80, still a lot cheaper than $70 though.

www.z1enterprises.com/detail.aspx?ID=314 <br><br>Post edited by: steell, at: 2006/04/06 19:02

I guess I was figuring shipping and the swap to CAD$ for the $70 figure
So does anyone know the OD for a 28? I need to see if its "close enough" to the OD of the 24s to see if I can modify my intake boots. thanks
Scott

im gonna shoot in the dark here and say just under 30mm feel free to shoot this theory full of holes guys! :whistle: :woohoo: goodluck,happy wrenching!

wireman wrote:

im gonna shoot in the dark here and say just under 30mm feel free to shoot this theory full of holes guys! :whistle: :woohoo: goodluck,happy wrenching!

If youre right, that would be awesome! my 24s are right around 30mm OD

I enlarged the boots on the air box side of the carbs by warming them with a torch and forcing them down over the neck of a beer bottle. This softened the boot and with a larger carb size made it alot easier to install them. Not sure if this will wirk for the engine side.

Good luck... I can see you have more advice on this subject than you need already so I will butt out! bwhahahaha Just remember what I mentioned when you try fitting those 28s in the 24 intake manifolds hehe

Thanks a lot guys, Ill give it a go, and if I screw it up, theres always Z1 with lots of new ones.