Bridgestone Motorcycle Parts Discussion Board

Bridgestone Tech Talk => 350 Talk => Topic started by: farmerdl on January 23, 2020, 12:24:40 PM

Title: Right side carb and clutch cover
Post by: farmerdl on January 23, 2020, 12:24:40 PM

We have been looking into the possibility of having the carb and clutch cover for the 350 reproduced.  The initial costs are high and unless there would be adequate demand it is not feasible.  I would like to be able to keep the price per unit in the $200 range and am looking for an idea of how many people would be interested.

farmerdl
Title: Re: Right side carb and clutch cover
Post by: Bridgestone Man on January 23, 2020, 03:14:40 PM
Not trying to tell you what to do, but perhaps check with Richard, as he had made lots of parts in the past and may have helpful information fro you.
I hope you go ahead with the project as there is a red shortage of them.

Sam
Title: Re: Right side carb and clutch cover
Post by: CL-100 on January 23, 2020, 03:37:44 PM
I'd be interested in two sets.
Title: Re: Right side carb and clutch cover
Post by: simonhk on January 23, 2020, 07:38:06 PM
I would be interested in a set
Title: Re: Right side carb and clutch cover
Post by: farmerdl on January 24, 2020, 07:19:58 AM
this is just the right side I am looking into. The smaller on the left seems to be more available.

DL
Title: Re: Right side carb and clutch cover
Post by: OldSwartout on January 24, 2020, 08:42:01 AM
The right side ones have been gone for years since the brake pedal tends to poke a hole in them. Definitely contact Richard, he probqbly has already investigated.

With 3D printing of metal parts like that readily available, the costs may have come down vs. the start-up costs of a die casting (probably $20k or more).  It's an easy part to make a 3D model of. It may also be possible to 3D print a cover in ABS (I could do that on a home printer) and have it chromed by vacuum deposition. I have no idea of the cost of the vacuum deposition, though.
Title: Re: Right side carb and clutch cover
Post by: BRT-GTR on January 24, 2020, 12:19:38 PM
              I would take at least two covers, probably the most sought after item for 350 restorations.
Title: Re: Right side carb and clutch cover
Post by: rwgibbon on January 25, 2020, 07:25:02 AM
It would be great if the clutch cover was available.
It seems that 75% of the ones I have found are cracked
or are broken from where the rear brake lever has hit.

If the quality was good and the price was around $200
I would purchase.

Randy

Title: Re: Right side carb and clutch cover
Post by: Kenneth Pagel on January 25, 2020, 04:02:56 PM
I'd be interested.
Title: Re: Right side carb and clutch cover
Post by: AlanJohn on January 27, 2020, 10:36:02 AM
How difficult to find are they?
Title: Re: Right side carb and clutch cover
Post by: CL-100 on January 27, 2020, 02:44:18 PM
I can't even find a damaged one!!!
Title: Re: Right side carb and clutch cover
Post by: farmerdl on January 27, 2020, 04:54:44 PM

it's still very preliminary but it looks somewhat promising that we should be able to do this.  We are staying away from trying to do it in ABS for a number of reasons and if we get there it will be aluminum.  Advice is always appreciated, we don't promise to follow it.

farmerdl
Title: Re: Right side carb and clutch cover
Post by: farmerdl on February 14, 2020, 08:58:16 PM

Just a quick update.  The tooling is being made and I should have a casting in hand in 4 to 6 weeks.  There is going to he  finish work involved past that and the decision will be made whether or not we are on the right track, but it does look promising.  I didn't mean to sound like a "snot-nosed" kid when I said that I didn't promise to listen to advice!  My grandfather taught me to get all of the advice I could and then go in the direction I thought best.  anyhow, it looks fairly promising.

DL
Title: Re: Right side carb and clutch cover
Post by: BRT-GTR on February 15, 2020, 10:03:23 AM
    DL
             Very pleased to hear you are taking this forward.  Was frankly disappointed and surprised by lack of response and support from members above.
     Almost every new 'barn find' or unrestored UK import,  I see on the net has a broken side cover.   If it's any help, I stuck my neck out and speculated, recently, on another site that there were probably no more than 2500-3500  BS 350s left in the world in total.
 I'm sure you could soon shift up to 1-200 new covers, if you can stand the initial capital cost. Based on responses so far, I would be thinking maybe 50 max !!, come on members support this, we/you are going to need them.

   Keep up the good work DL, will support you all the way and encourage others to do so, maybe lead to other scarce metal parts being remade. Have the covers been posted on facebook BS site ?, worth doing. Surprising how many not aware of Richard's site.                                                 
                                      Good luck, fingers crossed,   Brian
Title: Re: Right side carb and clutch cover
Post by: dcr on February 15, 2020, 05:00:45 PM
Brian - As a GTR owner, what do I need to do to show support?

Dan
Title: Re: Right side carb and clutch cover
Post by: farmerdl on February 15, 2020, 08:53:27 PM
I wouldn't say good work just yet.  Still only about 500 things could go wrong, but I think we have a decent shot for a scarce part.  My biggest concern is that we don't disappoint anyone!

DL
Title: Re: Right side carb and clutch cover
Post by: BRT-GTR on February 17, 2020, 02:06:18 PM
         ALL MEMBERS     -    Progression of DL's project to reproduce the almost unobtainable, right side, outer carb/clutch  cover and the final cost, all depends on the number produced.

       Please show your support by indicating how many covers you are likely to buy.

   Can't stress enough how scarce this part is, more chance of an alien ship landing on the Loch Ness Monster or you winning the nationl lottery than finding one. You would need a lottery win to buy it, if you did find one. If your 350 falls over on its right side, for whatever reason, the brake lever will gouge, crack or hole this right cover, happens every time, done it twice !
Title: Re: Right side carb and clutch cover
Post by: AlanJohn on February 18, 2020, 03:16:26 AM
l've got two of those right side covers on my bike room wall
Title: Re: Right side carb and clutch cover
Post by: BRT-GTR on February 19, 2020, 06:39:24 AM
   Al,    Goods ones are rarer than hens teeth.  With the number of GTRs you've rescued, if you've never needed one, you have a guardian Angel and don't know how lucky you have been.                          Brian
Title: Re: Right side carb and clutch cover
Post by: steve on February 19, 2020, 08:34:09 AM
DL

Very grateful to you for trying to achieve this...it's much appreciated. I currently have two GTOs and two GTRs and surprisingly, none of them need a RH cover...at the moment anyway. However, it only takes one slip...the bike's down and sod's law, it'll be on the right hand side!

So on the basis that I always plan to have at least one 350 in my life, I think I need a spare, just in case. This is probably going to be our only chance.

Cheers,
Steve

Title: Re: Right side carb and clutch cover
Post by: slawsonb on February 19, 2020, 09:01:35 PM
I've been on the fence since I have 2 NOS covers. But this is a good cause, and the points made by my brethren members have convinced me to join up. Put me down for one. BS350s Forever!!
...bert
Title: Re: Right side carb and clutch cover
Post by: cknight on February 21, 2020, 12:12:02 PM
I'll take one..   Thanks,   Chase
Title: Re: Right side carb and clutch cover
Post by: OldSwartout on February 21, 2020, 03:39:47 PM
I'll take one.  Karl
Title: Re: Right side carb and clutch cover
Post by: BRT-GTR on February 22, 2020, 05:14:58 AM
   Hi DL
         Don't wish to interfere but was thinking. In light of what we know about original covers, new covers would benefit from being made slightly thicker on outerside, the clutch vent slot (later rubber plugged) near rear 5mm screw hole can be eliminated and  make from an alloy that can be readily welded !
         Just my thoughts,   Brian.
Title: Re: Right side carb and clutch cover
Post by: old smokey on February 28, 2020, 10:13:05 PM
I would be in for (1) 350 right side cover. Sorry, don't log in here too often anymore as my bike is sitting in the corner gathering dust. Not enough $$, not enough time, not sure it's safe to ride a motorcycle around Phoenix....but I would still like a good cover!
Title: Re: Right side carb and clutch cover
Post by: Davitt on March 01, 2020, 08:16:12 AM
I've just logged in specifically to answer this- I need one, I'm in!
Looking forward to using this forum more as my 71 GTR restore moves along.

Thanks!!

Davitt
Title: Re: Right side carb and clutch cover
Post by: farmerdl on March 06, 2020, 05:35:33 AM
There is a used right side clutch/carb cover just in on ebay. looks to be decent shape.  I listed the link below.


https://www.ebay.com/itm/R-S-Carburetor-Cover-And-Screws-350-GTO-GTR-Bridgestone-721/202923459057?hash=item2f3f2e41f1:g:3QgAAOSwt3teYY61
Title: Re: Right side carb and clutch cover
Post by: OldSwartout on March 06, 2020, 08:47:46 AM
That'll buff right out!   ;D   Actually, since it doesn't seem to be cracked, it could look pretty good after some work.

Edit: I see I missed the fact that it is cracked. Still not  too bad of a piece, though.
Title: Re: Right side carb and clutch cover
Post by: moonpup on March 06, 2020, 09:01:56 AM
From the sellers description......

"Description

Has a crack"

Crack is circled by the seller in the attached pic.
Title: Re: Right side carb and clutch cover
Post by: BRT-GTR on March 06, 2020, 02:20:58 PM
    I've seen far worse on Ebay, price is OK. Dents and crack would largely tap out with a bit of careful work.
Title: Re: Right side carb and clutch cover
Post by: Kenneth Pagel on March 12, 2020, 12:39:42 PM
Put me down for one.
Title: Re: Right side carb and clutch cover
Post by: farmerdl on April 15, 2020, 10:01:31 PM
Well, we had planned on having the first of these covers in our hand by now.  I talked to the people at Clark Casting and they have not received the dies yet. They talked to the pattern maker a few weeks ago and he told them it would be a week.  No word from him since then.  I tried to call him over the past few days and get no response.  The people at Clark Casting don't understand what has happened as they have worked with him for years and have never had an issue.  I will let you know when we have more news.

  Sorry for the delay,
  DL
Title: Re: Right side carb and clutch cover
Post by: dcr on April 16, 2020, 08:41:11 AM
If he is not an "essential business" in his state, he could very well be shut down by mandatory closures.
Title: Re: Right side carb and clutch cover
Post by: OldSwartout on April 16, 2020, 05:07:52 PM
The "Essential Business" issue probably is the reason. Besides, in my experience pattern makers tend to be older with long experience and if it is a small shop, that may consist of most of their workforce, so they may be self-quarantined.
Title: Re: Right side carb and clutch cover
Post by: slawsonb on April 17, 2020, 01:24:21 PM
Keep the faith! We'll be back to our BSing before we know it! (Probably not May 1, but we'll get there!)
...bert
Title: Re: Right side carb and clutch cover
Post by: farmerdl on May 05, 2020, 04:35:22 PM
Finally got in touch with the pattern maker and the foundry.  We are still on, but further down the road. As some had said it was due to Corona virus restrictions.
Title: Re: Right side carb and clutch cover
Post by: 350 gtouk on May 24, 2020, 04:41:45 AM
I've got a good spare one ( wrapped up in a box)
but i'd be interested in one   :)
Title: Re: Right side carb and clutch cover
Post by: farmerdl on June 19, 2020, 02:16:08 PM
we have a first run of castings in hand. now the people who do my machine work are backed up so we have a ways to got yet.  Bt I think we just might get there.
Title: Re: Right side carb and clutch cover
Post by: slawsonb on June 19, 2020, 03:23:11 PM
Good news! Can you post a pic of the casting(s)? Thanks...bert
Title: Re: Right side carb and clutch cover
Post by: Kenneth Pagel on June 20, 2020, 11:33:34 AM
Progress! It's a wonderful thing!
Title: Re: Right side carb and clutch cover
Post by: stainless916 on September 24, 2020, 11:22:26 AM
I'Ll definately have one if this project goes ahead or maybe I'm too late!
Title: Re: Right side carb and clutch cover
Post by: farmerdl on September 24, 2020, 12:44:05 PM
No, not too late.  Still waiting on the shop doing the machining.  Hadn't thought that this would be the hang up.  Someone had asked for pix of the unfinished castings.  For some reason I have difficulty posting pix on this forum.  I am not exactly skilled in the digital world.  Much better in analog.
Title: Re: Right side carb and clutch cover
Post by: stainless916 on September 24, 2020, 01:15:08 PM
Ok keep me posted.Would you have any problem shipping to UK?
Title: Re: Right side carb and clutch cover
Post by: slawsonb on September 25, 2020, 02:27:59 PM
Hey DL. If you could email the pix to me, I can try to post. Will send you a PM....bert

     
Title: Re: Right side carb and clutch cover
Post by: farmerdl on September 26, 2020, 12:52:25 PM
Sent this a.m.
Title: Re: Right side carb and clutch cover
Post by: slawsonb on September 28, 2020, 11:26:53 AM
Let's see if we get it done...Whoo hoo! Nice looking part and a great start!...bert
Title: Re: Right side carb and clutch cover
Post by: simonhk on September 28, 2020, 08:31:29 PM
I will buy 2 when they are ready banana banana banana