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Rob21

Yoshimura Heatshield Help 7/11

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You can get self adhesive thermal sheet on Eblag, its for lining fairings. Really good stuff, get the heatsheild fitting how you want then stick some on, bit of trim round the edges. Pretty much the same as Yoshi ones then.

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1 hour ago, Rob21 said:

 will deffo be using a heat gun. 

factory

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52 minutes ago, MeanBean49 said:

You can get self adhesive thermal sheet on Eblag, its for lining fairings. Really good stuff, get the heatsheild fitting how you want then stick some on, bit of trim round the edges. Pretty much the same as Yoshi ones then.

yeah plumbing heat resistant tape is a fiver a roll....last forever and sticks like fuck..

cable ties and a couple of feet of edge trim

sorted

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1 hour ago, MeanBean49 said:

You can get self adhesive thermal sheet on Eblag, its for lining fairings. Really good stuff, get the heatsheild fitting how you want then stick some on, bit of trim round the edges. Pretty much the same as Yoshi ones then.

Aye you can see I did that on the original photos, nae bother, looks trick enough!

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12 minutes ago, Swiss Toni said:

Where'd you get the edge trim, Rob?

I used car window trim. Or some silicon hose slit down its length then ty-wrapped on every few inches

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26 minutes ago, Swiss Toni said:

Where'd you get the edge trim, Rob?

Was off the bidding site, much better than car trim, it has an aluminium frame inside it, really grips hard.

not sure if I can link think but here anyway.

322408358823

 

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5 hours ago, Rob21 said:

That yellow Perspex looks pretty cool, I may need to make a similar cut out shape on the middle 2 carbs to clear the engine. 

My mates L has been lying up for some time. Have the feeling I'll be the one getting it back on the road at some point. Might not be for a while yet. But if I do, I'll remove the perspex unit and copy a template from it to upload on the site for future reference. Just not sure when as said mate has too many toys at the mo.

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12 hours ago, CockneyRick said:

In addition, i would think that without putting a reflective coating on the front side (not expecting seller to do that)  it will be pretty pointless?

That did occur to me - it is listed in the Yoshi parts list - The plastic is just the carrier / support whilst the reflective foil is the real 'working' element of the assembly. Otherwise it's just form over function ie. looks trick but does little for heat shielding?

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On 9-1-2018 at 10:07 AM, CockneyRick said:

I understand the logic when it comes to "modding" cos of engine/carb/frame issues & that is fair enough.

However, the one i have has the 4x carb holes totally uneven (No modding can cure that) & as mentioned, the creases from the original shape make it extremely hard to get a good/reasonable fit.

So on that note, i apologise for getting carried away with my dissatisfaction at the product.

 

And as an addition, i would think that without putting a reflective coating on the front side (not expecting seller to do that)  it will be pretty pointless?

IMHO its only job is to keep hot air away from the carbs, in my case more so if waiting in line for the start on a trackday. I see the point of making it reflective but being white it already does reflect heat. 

Edited by bruteforce

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I may be farting in the wind here, if so stand up wind of me. A lot of modern cars have heat shield sheets fitted on fuel tanks etc,. Now these are thin and very flexible. Just cut to shape and stiffen up with fibre resin put trim where wanted,jobs a good un.

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On 9-1-2018 at 9:03 AM, bruteforce said:

The heatshield you mentioned from SF services fits well on my ‘89 750. You seem to have a combo of 1100 motor, 38mm carbs with a 750 frame. Understandably it needs some mods imho. The shield needs to be trapped behind the clips, I trimmed the slot for the throttlecable drum a bit wider and that’s it.

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1100 motor is no difference in a 750 chassis, 38mm are the same body as 36, 1100 M chassis is the same as 750 88. Shouldn't make a difference about fitting a heatshield.

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Given that these "heat shields" offer so little benefit, why bother?  (apart from looks)

Lets face it, how many of you have had fuel starvation from evaporation on a road bike?

 

Save your cash and spend it on something usefull

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14 hours ago, Quist said:

1100 motor is no difference in a 750 chassis, 38mm are the same body as 36, 1100 M chassis is the same as 750 88. Shouldn't make a difference about fitting a heatshield.

My carb tops rub against the frame and the choke pull rod + brackets nearly touch the engine. 1991 motor 1100, 1990 750 frame, 1991 38bst carbs. All very tight, should see what I have to do to get them in and out. lol

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22 hours ago, Quist said:

, 38mm are the same body as 36, 1100 M chassis is the same as 750 88.

38's are definitely bigger than 36's.

And 750 '88 is the smallest Slingy, 750 '90 and '91 is same size as 1100.

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13 hours ago, Rob21 said:

My carb tops rub against the frame and the choke pull rod + brackets nearly touch the engine. 1991 motor 1100, 1990 750 frame, 1991 38bst carbs. All very tight, should see what I have to do to get them in and out. lol

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What kind of filter and stacks are those?

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They are my own velocity stacks. Designed by me and 3D printed by my mate. Went through a couple of designs and versions. The blue ones you see was a prototype. Ended up makin 15mm short ones recombined by the dyno tech. 3D printed in nylon. Very strong and light.

The foam filters are ram airs, £25 a pair, only lost 1hp with them on, extremely efficient and cheap enough to buy each year.

 

The bike done 130.5 bhp at the rear wheel, full yoshi cyclone system, 38bsts with the power jet circuit blanked off and the stacks. Dyno man wants it back to sweeten out the low end (very rich pilots) and advance the timing for some more horses :)

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14 hours ago, Captain Chaos said:

38's are definitely bigger than 36's.

And 750 '88 is the smallest Slingy, 750 '90 and '91 is same size as 1100.

Measured my 88 750 and 1100 91 frame two weeks ago. 

The same.

only difference are the pieces near the headstock where the loom Goes through (tubes / triangle holes). 750 angle is more shallow which is the reason that the engine need Some more work to get in. Beside that, around the engine is the same size.

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that's funny, I measured my '88 750 and a mates '91 1100 some 17 years ago and found out that my 750 was smaller (and decided to build a 7/11). Happy to be proved wrong though :)

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