Cover on plunger caps

[Tyler Shiells]

So the cover for the plunger Caps seem nigh impossible to get. Discontinued part.
There is ONE on ebay that would cost me over $30 by the time I received it. Ouch.

I still have one in functioning order. The other is off and too hard to put back on.

My question is, how imperative are these covers to the function of the choke?

I will try and boil the one to soften it and see if it will slide back on.

 

[mmmboost]

Forgive my ignorance, but what is a plunger cap?

 

[Tyler Shiells]

Forgive my ignorance, but what is a plunger cap?

It's the nut that screws into the choke cavity and holds the plunger in place. There's a little rubber ring that covers the cap, one of mine is rock hard and cracked.

 

[mmmboost]

I'm assuming this is the part you're referring to? if so the same part is offered on XS650Direct.com since I see you're in Manitoba. If it's the actual brass cap, I don't see there on MikesXS or 650Direct

 

[Tyler Shiells]

I'm assuming this is the part you're referring to? if so the same part is offered on XS650Direct.com since I see you're in Manitoba. If it's the actual brass cap, I don't see there on MikesXS or 650Direct

Yes that's the part I need.

But when you got to the xs650 direct site it lists that part # for the BS/38.
On the Mikes XS site, as the oneyou linked, it say it's for BS/34. Hmmm

I'll send them a message and find out what's up.

Thanks for the link.

 

[mmmboost]

for the price of them you could pick up one of each and not feel too bad about it. lol

I found a post on The GS Resources with some info in it. It looks like the MikesXS site has corrected the information that was previously listing the 5041 part as a BS38 part. Maybe 650Direct hasn't corrected their website.

http://www.thegsresources.com/_foru...oke-plunger-dust-seals-(external-to-the-carb)

 

[xschris]

The 80-84 xs650 caps are too large for 77-79 xs400 carbs. They would only work on 80-82 sohc xs400 carbs.

 

[BBS360]

Whole assembly including the cap:
http://www.ebay.com/itm/291521955947
About the same price as what you mentioned. Not a bad price.

 

[Tyler Shiells]

The 80-84 xs650 caps are too large for 77-79 xs400 carbs. They would only work on 80-82 sohc xs400 carbs.

The thing is Mikes has it listed for 79-83 bs/34 ...
Choke Plunger Dust Seal - Fits: 1979 - 1983 Yamaha XS650 BS34 CV Carb Choke Plunger.

Did those years on the 650 use the same carbs as the 400?

 

[BBS360]

Even if they did, don't you have a '78?
Check out the parts compatibility:
Your part:
http://www.boats.net/parts/detail/yamaha/Y-2A2-14173-00-00.html
The MikesXS part:
http://www.boats.net/parts/detail/yamaha/Y-3F7-14173-00-00.html

 

[Tyler Shiells]

Even if they did, don't you have a '78?
Check out the parts compatibility:
Your part:
http://www.boats.net/parts/detail/yamaha/Y-2A2-14173-00-00.html
The MikesXS part:
http://www.boats.net/parts/detail/yamaha/Y-3F7-14173-00-00.html

Yes I have a 78.
Didn't anticipate all these little parts would add up. The shipping from the US to Canada is outrageous on these tiny little parts.

I have budgeted myself between $2000 and $2500 to rebuild the bike and I haven't even replaced the expensive parts yet!

Thanks for your help so far tho.

 

[arfstrom]

https://www.youtube.com/results?search_query=xs400+carb
Sorry I couldn't come up with something more helpful