Exhaust question please

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njw1967
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Location: North Yorkshire UK

Exhaust question please

#1 Post by njw1967 » Tue Dec 22, 2015 5:09 pm

Hi guys
Can anyone help please RZV500R
Does anyone know if the heat shealds on the upper exhausts are suppsed to have a layer insulation between the exhaust and the sheald.
I cant find any information in parts lists mine has what i could only describe as loft type insulation inbetween the exhast and the heat sheald ????
Appreciate any feedback on this matter

Regards Neil

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Speed Freak
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Re: Exhaust question please

#2 Post by Speed Freak » Tue Dec 22, 2015 5:20 pm

No insulation between hear shield and exhaust ;)

Just welded together at the inlet and held in place by 2 hose clamps
My bikes:
RD500 YPVS 1GE
RD350 YPVS 31K 1985
Honda CBR 1000 RR SC57
Yamaha R1 RN04

njw1967
Posts: 19
Joined: Sat Oct 24, 2015 2:33 pm
Location: North Yorkshire UK

Re: Exhaust question please

#3 Post by njw1967 » Tue Dec 22, 2015 5:40 pm

Cool thanks for info i will remove it then what about behind seat side plastic panels its got i insulation stuck on there as well ????

Regards Neil

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Speed Freak
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Re: Exhaust question please

#4 Post by Speed Freak » Tue Dec 22, 2015 5:55 pm

Sorry, i have seen you are asking about the RZV - i don`t know it there.
But I`m quite sure it`s the same as the RD500.

There should be an insulation mat on:
- black triangle in battery area
- inside rear fairing
- rear mudguard (small piece of insulation mat)
- belly pan
- battery box

I think 1GE only:
- under the driver seat
- under the tank (heat shield with insulation mat)
My bikes:
RD500 YPVS 1GE
RD350 YPVS 31K 1985
Honda CBR 1000 RR SC57
Yamaha R1 RN04

njw1967
Posts: 19
Joined: Sat Oct 24, 2015 2:33 pm
Location: North Yorkshire UK

Re: Exhaust question please

#5 Post by njw1967 » Tue Dec 22, 2015 8:50 pm

Cheers for info Speed Freak

Regards Neil

njw1967
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Location: North Yorkshire UK

Re: Exhaust question please

#6 Post by njw1967 » Tue Dec 29, 2015 1:50 pm

Hi Guys ive inspected the heat shealds today and they are in pretty poor condition they are rusted through in places!!!
Does anyone know if there is a part number for them or are they part of the exhausts?
Also has any one run a bike without them or maybe used exhaust heat wrap to sheald the heat i do intend trying to find some to replace mine but thinking this may be a solution so i can use the bike

Regards Neil

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Speed Freak
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Re: Exhaust question please

#7 Post by Speed Freak » Tue Dec 29, 2015 4:16 pm

Hi Neil,

they are listed as one part in the parts manual, so you can`t order them.
Mine are not rusted thru but have also holes from rubbing against the exhaust.

I want to rechrome them as they are and weld them back onto the exhaust pipes.

Don`t know how important they are. I have seen a lot of aftermarket pipes wrapped in insulation material.
As Yamaha made some changes over the years regarding heat shields i guess they had trouble with the heat in the area of the fuel tank and seat.
My bikes:
RD500 YPVS 1GE
RD350 YPVS 31K 1985
Honda CBR 1000 RR SC57
Yamaha R1 RN04

njw1967
Posts: 19
Joined: Sat Oct 24, 2015 2:33 pm
Location: North Yorkshire UK

Re: Exhaust question please

#8 Post by njw1967 » Tue Dec 29, 2015 5:43 pm

Cheers for the reply Speed Freak
I'm thinking wrapping them with exhaust insulation tape could be a better solution to the standard shield as it will help carry the heat with the exhaust gasses rather than it escaping under the seat ?

Regards Neil

rd84
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Re: Exhaust question please

#9 Post by rd84 » Wed Dec 30, 2015 8:09 am

njw1967 wrote:Cheers for the reply Speed Freak
I'm thinking wrapping them with exhaust insulation tape could be a better solution to the standard shield as it will help carry the heat with the exhaust gasses rather than it escaping under the seat ?

Regards Neil
Hi Neil,

Have you considered ceramic coating ? - you could keep a reasonably standard appearance and have good rust proofing as well ?

Cheers
Paul

fbman
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Re: Exhaust question please

#10 Post by fbman » Wed Dec 30, 2015 9:13 am

There is a product from Moose Racing " Adhesive Back Heat Shield " Ceramic material that works great on the rear panels and belly pan. I've used this stuff for many years on the RZ'ds, etc and have had no issues with it. It sold in 18"x !8" sheets, it does a great job and looks very professional when installed.
Frank
86 RZ350S -Mostly stock, Intake + Toomie Pipes
88 FZR250 -Stock
2004 BMW F650GS
1976 BMW R75/6 main ride
1989 Yamaha TDR250

Duel
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Re: Exhaust question please

#11 Post by Duel » Wed Dec 30, 2015 8:56 pm

Keep in mind when using heat insulation tape or coatings the exhaust gases will stay much warmer and due to the quicker exhaust gases the exhaust will to be 'shorter' and therefor be working on a higher rpm.

njw1967
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Re: Exhaust question please

#12 Post by njw1967 » Thu Dec 31, 2015 7:22 am

I have thought about this however i was only looking to wrap the frontpipies of the 4 cylinders not as a performance aid but just to keep the heat away in this area so i could use the bike untill i sort some sheilds out

Regards Neil

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