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SilencerPacking Maintenance and Replacement
The Delkevic range of silencers utilize thermally and mechanically resistantsilencer packing, but due to the nature and function of the silencer itself,over a period of time this packing will deteriorate. A repacking kit container the packingmaterial, stainless steel rivets and high temperature silicon sealant isavailable directly from Delkevic.
As with any silencer it is necessary to periodically check the integrity ofpacking material, this can initially be achieved by simply listening to theexhaust tone. If the exhaust tone isuncharacteristically loud or metallic/hollow sounding, most likely the packingneeds to be replaced.
The average lifespan of the packing material is dependent upon a number offactors e.g. the load applied, riding style of the user, engine size andconfiguration etc, for example, a large single or twin cylinder bike will tendto require shorter packing intervals than a 4 cylinder bike of the samedisplacement. That being said, it is notuncommon for singles and twins to go 10K miles between repacks and 4 cylindersto go 15K or more.
If the packing material is found to have deteriorated, it should bereplaced. There will be a drop in engineperformance. The deterioration alsoaffects the heat insulation properties protecting the exterior sleeve of thesilencer. If repacking is not done thereis a high risk of damaging the outer sleeve and also any body panels/fairingsthat are mounted in close proximity.
BaffleFitment 225mm Oval and all Round Silencers
Please note if you have any other silencer, the baffle is delivered installedon the outlet with a bolt.
Removeblanking bolt from silencer and keep safe.
Pleasenote the bolts have different sizes. Insert baffle and align threaded portionwith hole. It is a tight fit and may need to be tapped in with a wooden dowel.Secure with the smaller bolt. Fit silencer to link pipe.After your first ride out, check allfasteners for tightness, especially the baffle bolt.
Silencer Fitting Instructions
Congratulations on your choice of aDelkevic Silencer!
Your Delkevic Exhaust is a precisionmanufactured product, designed for ease of fit, power and reliability.
Please read the instructions carefullybefore attempting to fit the exhaust system.
Your Delkevic silencer may be suppliedwith a white protective film fitted; this must be removed prior to starting theengine.
Use good quality penetrating oil whenremoving the original silencer, as Delkevic cannot accept responsibility forbroken or damaged fixings. We recommendusing new gaskets where appropriate and the use of high temperature exhaustsealant (supplied) around all joints when fitting the silencer. Also it is important to us a small amount ofoil/grease to lubricate all threads (i.e. copper slip).
Remove standard rear silencer unit(complete with standard gasket) and any link pipe that is used to attach thesilencer to the header pipe outlet, wrap it up and keep it safe for future use.
Before fitting your Delkevicsilencerensure that all gasket surfaces are clean and rust free.
Locate the mounting strap and fit theinternal rubber protection strip to the inside face of the strap.
Apply a 3mm bead of high temperaturesilicone sealant to all mating surfaces.
The silencer and pipe can now beslotted together but do not tighten the clamp.
Install the assembly onto the headersection outlet but do not tighten.
*****Please note that some models will require the use of thestandard gasket*******
Hang the assembly in place using the mountingstrap supplied, not if the hanger forms a “b” shape with the mounting lugsoffset, these should be fitted towards the inside of the silencer.
The link pipe can be rotated in eitherdirection until you are happy with the silencer alignment (pay attention to anystand stops, spring hooks etc.)
Ensure there is adequate clearancebetween the exhaust system, swinging arm and any other parts sensitive to hightemperature.
Working from the front side of thebike, tighten all clamps securely.
Before starting remove any protectivefilm from the silencer and mounting strap.
Where baffles are fitted, pleaseensure they are fastened tightly before use. Delkevic cannot assume liabilityfor lost baffles.
All Delkevic road exhaust systems aredeveloped usng freshly serviced low mileage motorcycles with standardjetting/maps/filters etc. With the vast majority of bikes no adjustment will berequired after fitting one of our systems, but as with any exhaust system it isimpossible to guarantee that no adjustments will be required 100% of the timeas it is dependent on many variable factors i.e. environment, type of fuelused, condition of engine tune, mileage of engine, wear in carburetors etc.hence it is recommended after fitting a Delkevic silencer the bike is checkedon a Dyno and a fuel mixture test performed, this is of the upmost importanceif fitting a RACE silencer as enginedamage may result.
RACE SYSTEMS-IMPORTANT NOTES
Where a race system is supplied andfitted to any road going machine, it is worth noting that sometimes theircourse does not follow the exact lines of the original equipment. Therefore, it is recommended that heatresistant material (not supplied) always be fitted where pipe work sits closeto any paneling or anywhere there may be a danger of head damaging panels. Accordingly, some level of mechanicalknowledge is required as some machines may also require minor modification toensure safe and proper fitment. Due to the nature of race systems it is theresponsibility of the owner to ensure safe and adequate fitting.
SAFETY NOTICE-HEAT HAZARD
When run, the surface of the exhaustsystems becomes very hot; due care should be exercised especially when themachine is left unattended after running, to prevent accidental contact withthe system or silencer. Delkevic cannotbe responsible for any damages incurred by fitting either by purchaser or anyother third party and any ancillaries, such as baffles are correctly installedand tight before usage.
The manufacture, importer or dealershall not be liable for any incidental damage including personal injury or anyother damages caused by improper installation or operation of a Delkevicexhaust system. When installing theDelkevic exhaust system it is the fitters’ responsibility to ensure there isenough clearance between the exhaust system and any other parts sensitive tohigh temperature.
Any damage caused by the improperinstallation, use or maintenance of the Delkevic exhaust system includingaccident, modification, improper or competition use will result in the warrantybeing null and void.
Any warranty claim is subject tonormal use of the silencer and excludes items subject to normal wear (gasketsand silencer packing)
Do not attempt to install the Delkevicexhaust system onto a motorcycle for which it was not designed.
When the exhaust system gets very hotduring operation, be careful not to burn yourself on the exhaust or any exhaustcomponents, even when the motor is not running. Also, warn others of the risk of hot exhaust systems, especiallychildren.
Delkevic exhaust system kits maycontain chemical products, handle with care, do not inhale or swallow. Avoid excessive contact with skin andeyes. Keep out of reach ofchildren. Contact poison controlimmediately if ingested.
StainlessSteel Exhaust Care
T-304 Stainless Steel is a premiumalloy containing a minimum of 18% chromium and a minimum of 8% nickel alongwith other alloying elements. It is thepreferred alloy for the manufacture of products subject to high head andcorrosive conditions. Chromium increasesthe hardness of the steel and makes it more resistant to corrosion andoxidation. Nickel strengthens the steeland further increases it’s resistance to corrosion and oxidation.
Will it Stain?
YES! The name says it all. It’s stain-less steel, not stain-freesteel. Nevertheless, it will stain muchless than other steels or alloys and it will never rust (which is probably thereason it was purchased). With propercare, staining can be minimized or eliminated. Frequent washing (only clean your exhaust after it is cool to the touch)with hot water and a mild low acid detergent will help to maintain the polishedlook of your new exhaust as long as possible. If it is necessary to remove oilor road tar, wait for the system to cool, wash first with mineral spirits andimmediately wash with soapy water, rise off with hot clean water, then buffdry.
Organic compounds picked up from theroad including engine oil and antifreeze, if left on the exhaust, willeventually bake onto the metal surface and will be extremely hard toremove. If the metal is not cleaned properlythe color of the organic will change to a black or a dark reddish brown thatmay resemble rust. At this point, theonly way to clean the surface is to scrub with a fine stainless steel wool pad,wash with warm soapy water, rinse with clean water and buff dry.
Why does Stainless Steel change color?
When stainless steel is heated upseveral of the alloying elements will precipitate out and migrate to thesurface, thereby affecting the color. The first element to precipitate is Carbon which gives the metal a goldsheen. No amount of polishing willremove it. When the exhaust turns a bluehue it is the result of excess heat changing the structure of the chromiumcrystals in the metal.