19
Ural ( Ural ( Урал Урал ) ) - - Dnepr ( Dnepr ( Днепр Днепр ) ) Mufflers for Russian Motorcycles Mufflers for Russian Motorcycles with Sidecars with Sidecars Part III: Installation of Part III: Installation of Black Modtop Mufflers Black Modtop Mufflers on 2003 Ural Patrol on 2003 Ural Patrol (Also See Part 1: Muffler Introduction, Part 2: Muffler Componen (Also See Part 1: Muffler Introduction, Part 2: Muffler Componen ts, ts, Part 4: After Part 4: After - - Market Mufflers, Part 5: Chapter 9 of Bill Glaser's Market Mufflers, Part 5: Chapter 9 of Bill Glaser's "Unofficial" URAL 750cc Motorcycle Service Manual) "Unofficial" URAL 750cc Motorcycle Service Manual) Ernie Franke Ernie Franke [email protected] [email protected] 12 / 2012 12 / 2012

Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Embed Size (px)

Citation preview

Page 1: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Ural (Ural (УралУрал) ) -- Dnepr (Dnepr (ДнепрДнепр))Mufflers for Russian Motorcycles Mufflers for Russian Motorcycles

with Sidecars with Sidecars Part III: Installation ofPart III: Installation ofBlack Modtop MufflersBlack Modtop Mufflers

on 2003 Ural Patrolon 2003 Ural Patrol(Also See Part 1: Muffler Introduction, Part 2: Muffler Componen(Also See Part 1: Muffler Introduction, Part 2: Muffler Components, ts,

Part 4: AfterPart 4: After--Market Mufflers, Part 5: Chapter 9 of Bill Glaser's Market Mufflers, Part 5: Chapter 9 of Bill Glaser's "Unofficial" URAL 750cc Motorcycle Service Manual)"Unofficial" URAL 750cc Motorcycle Service Manual)

Ernie FrankeErnie [email protected]@tampabay.rr.com

12 / 201212 / 2012

Page 2: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Modtop Performance Black Mufflers for UralsModtop Performance Black Mufflers for Urals•Modtop Performance LLC–Dan Malinowski–34973 300th St., Henderson, MN 56044–http://www.modtopperformance.com/

• Specializing in Parts for Ural Motorcycles–High-Quality, Retro Muffler Assemblies–American-Made using Quality Steel

and Muffler Bodies with High-Temperature, Durable, Hotrod Black, Powder-Coat•Can Withstand Temperatures Greater than 1,000°F•Coating Will Not Dull or Chalk Like Most Powder Coats

–3” diameter Body, 15 gauge Wall, with 1 ¾” diameter Cores–Inlet/Outlets are 1 ½ diameter, 14 gauge Pipes with Inlet Expanded to Fit Over Stock

Pipes or the Extension Pipes–Includes Custom-Made Large "P" Clamps, Small Clamps, Extension Pipes and Hardware–If Not Satisfied with Fit, Finish or Sound of Mufflers, Return Them for Full Refund–List Price: Muffler Kit with 1 pair of Small Clamps: $224.99

• If 2010 or Newer Model and Do Not Have the Small Hanger Clamps on Exhaust System;–Order the Muffler Kit with 2 pairs of Small Clamps–Muffler Kit with 2 pairs of Small Clamps (for 2010 and newer models): $234.99

• Powder-Coating of Header Pipes and Crossover Pipes Also Available on an Exchange Basis•Note: Modtop Performance Powder-Coat, Transition Pipes Do Not Contain Catalytic Converters

Modtop Performance is proud to offer black powder-coated replacement mufflers for Ural motorcycles, and they’re proud of them.

Transition PipesTransition Pipes

Black, PowderBlack, Powder--Coat MufflersCoat Mufflers

Large PLarge P--ClampsClamps

SmallSmallClampsClamps

Page 3: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Transition / Catalytic Converter (CatCon) Pipes• Transition Pipes Needed to Establish the Correct Angle from the Exhaust Manifold

(Headers) before Entering the Muffler–Transition between Header (“J” Pipe or Exhaust Manifold) and Muffler (Silencer)–About 9” Long for Ural (Part #: IMZ-8.123-12036) for 2003 Patrol

•Ural Transition Pipes Also House a Catalytic Converter at One End: Transition/CatCon Pipe•Modtop Performance Black, Powder-Coat, Transition Pipes Do Not Contain Catalytic

Converters•Options for Using the Modtop Black Transition Pipes during Muffler Replacement–I. Add Black Modtop Transition Pipe to Existing Chrome Ural Transition/CatCon Pipe• Places End of Tailpipe About 11” beyond Rear Axle•Retains Catalytic Converter (CatCon)

–II. Replace Chrome, Ural Transition/CatCon Pipe with Black Modtop Transition (no CatCon) Pipe• Places End of Tailpipe Only 6” beyond Rear Axle• Eliminates Catalytic Converter: Increases Power by a Few HP, Eliminates Converter

Fouling• Legality Problem

–III. Retain Chrome Ural Transition/CatCon Pipe and Don’t Use Black Modtop Transition Pipe• Places End of Tailpipe Slightly Ahead of Rear Axle•Retains Catalytic Converter (CatCon)

–IV. Eliminate Any Transition Pipe•Won’t Work: Body of Muffler Hits Drivers Foot-Peg•Also: Not Possible to Make the Transition without Any Transition Pipe

Transition / Catalytic Converter (CatCon) Pipes

Much of the installation of replacement mufflers involves the transition pipe, as we present the pros and cons of retaining the chrome transition/catcon pipe.

Page 4: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Transition / Catalytic Converter (CatCon) Pipes Transition / Catalytic Converter (CatCon) Pipes (cont.)(cont.)• Is the Original Ural Transition/Cat Pipe Still Needed? Maybe / Maybe Not–Federal Law Prohibits Removal or Replacement of a Properly Functioning OEM (Original

Equipment Manufacturer) Catalytic Converter• If the Vehicle Was Manufactured after 1986, It Must Retain the Catalytic Converter

• Is My Motorcycle Required to Pass a Tailpipe Emissions “Smog-Check?–Depends on the State:• Some States Do Not Have Any Emissions Testing• In Some States, Smog-Checks Required in Populated Areas, But Not in Selected Rural

Areas•With Laws and Regulations Changing at an Increasing Rate, It Is Very Difficult for the

After-Market to Keep Ahead of Changes•Contact Local or State Agencies for Information Regarding Local Emissions Laws• Exceptions Usually Include Vehicles Designed for Off-Road Use Only

–On the Other Side, Motorcycle Owners Run the Risk of Converters Clogging, Which Doesn’t Help Emissions Either• It's No Wonder the Catalytic Converter Is Often Tossed Out in Favor of a “Test Pipe" ( a

straight-thru pipe, no CatCon), Except That It’s Illegal

Legality means that the catalytic converter must remain in the exhaust system, even if it means that the converter may clog or deform

affecting the emissions in an even worse way.

Page 5: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Catalytic Converter (CatCon) Inspection Catalytic Converter (CatCon) Inspection (John Grocke (a.k.a. JohnBG) at www.russianiron.com)(John Grocke (a.k.a. JohnBG) at www.russianiron.com)

• JohnBG Pulled Apart Muffler and Found the CatCon Completely Imploded (shown below)–Caused Abnormal Operation of 750cc Ural

•Construct “Test” Pipes to Show Effect of Clogged Transition Pipe (strictly hypothetically speaking)–Many Riders Have Been Lured to Installing “Test Pipes” for Less Back-Pressure and

Increased Horsepower–Method 1 to Construct Test Pipes without CatCons:•Remove Transition Pipes (on each side, between the J-pipes and the mufflers)•Use Small Grinder, Dremel Tool or Bench Grinder to Grind Away the Welds that Hold

the Converter in Place• Pull Out the Corrugated Web and S-Piece

–Method 2 to Construct Test Pipes without CatCons:•Remove Transition Pipes (on each side, between the J-pipes and the mufflers)•Hack Saw a Little Ring on the Pipe Side of the Weld and Discard the Stub

GoodGood BadBad

Ural placed a small catalytic converter in each transition pipe, between the muffler and header pipe, so the bike could meet U.S. import criteria.

Page 6: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Many Reported Catalytic Converter FailuresMany Reported Catalytic Converter Failures

Interesting!Interesting!

2010 Patrol Catalytic Converter2010 Patrol Catalytic Converter((affordableaffordable--beemersbeemers..smugmugsmugmug.com) www.www.uralural..czcz.com)

Page 7: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

2003 Patrol with Ural Chrome Torpedo Muffler2003 Patrol with Ural Chrome Torpedo Muffler

This Ural Patrol is missing the transition/catalytic converter pipes, thus leaving the end of the tailpipe a few inches ahead of the rear axle.

Tailpipe Ahead Tailpipe Ahead of Rear Axleof Rear Axle

Page 8: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

2011 Ural Patrol2011 Ural Patrol--TT

End of Tailpipe ExtendsEnd of Tailpipe Extendsabout 6about 6”” beyond Rear Axlebeyond Rear Axle

Chrome, Ural Transition / CatCon PipeChrome, Ural Transition / CatCon Pipe

End of Tailpipe ExtendsEnd of Tailpipe Extendsabout 6about 6”” beyond Rear Axlebeyond Rear Axle

Ural advertisements show the Ural with the transition/catalytic converter pipes, yielding a tailpipe extending about 6” beyond the rear axle.

Page 9: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Ural TailpipesUral Tailpipes

Chrome, Ural Transition / CatCon PipeChrome, Ural Transition / CatCon Pipe

2009 Ural2009 Ural--T Stainless ExhaustT Stainless Exhaust(tailpipe a few inches beyond rear axle)(tailpipe a few inches beyond rear axle)

2011 Ural Patrol2011 Ural Patrol

2011 Ural Patrol2011 Ural Patrol

Chrome, Ural Transition / CatCon PipeChrome, Ural Transition / CatCon Pipe

Typically the tailpipe extends slightly (about 6”) beyond the Ural’s rear axle.

Page 10: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

2003 Owners Manual Showing 2003 Owners Manual Showing Transition / Catalytic Converter PipeTransition / Catalytic Converter Pipe

Transition / Catalytic Transition / Catalytic Converter (Converter (CatConCatCon) Pipe) Pipe

(left(left--side)side)

Transition / Catalytic Transition / Catalytic Converter PipeConverter Pipe

(right(right--side)side)

Ural Chrome Ural Chrome Torpedo MufflerTorpedo Muffler

(left(left--side)side)

Ural Chrome Ural Chrome Torpedo MufflerTorpedo Muffler

(right(right--side)side)

The transition/catalytic converter (CatCon) pipe was added to the exhaust system to satisfy EPA requirements for imports.

Page 11: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Item # Item # Part # Part # Description Description Qty Qty 1 1 IMZIMZ--8.1238.123--12003 12003 Muffler Assembly Muffler Assembly 222 2 IMZIMZ--8.1238.123--12004 12004 Header Pipe Header Pipe 113 3 IMZIMZ--8.1238.123--12007 12007 Header Pipe Header Pipe 114 4 IMZIMZ--8.1038.103--1210312103--10 10 Clamp LHClamp LH 115 5 IMZIMZ--8.1238.123--12103 12103 Clamp RHClamp RH 1166 6,312,1086,312,108--20 20 Connecting Pipe Connecting Pipe 117 7 IMZIMZ--8.1238.123--12036 12036 Branch Pipe Branch Pipe 228 8 IMZIMZ--8.1018.101--12112 12112 Clamp Clamp 669 9 IMZIMZ--8.1238.123--12114 12114 Clamp Clamp 1110 10 6,612,270 6,612,270 Muffler Nut Muffler Nut 2211 11 IMZIMZ--8.1238.123--12114 12114 Clamp Clamp 1112 12 IMZIMZ--8.1078.107--12060 12060 Clamp Clamp 11

2003 (IMZ2003 (IMZ--8.103) Ural Patrol Exhaust Assembly8.103) Ural Patrol Exhaust Assembly

7. Transition / Catalytic Converter (7. Transition / Catalytic Converter (CatConCatCon) Branch Pipe) Branch Pipe

1. Ural Torpedo Mufflers1. Ural Torpedo Mufflers

2. 2. ““JJ”” Header PipesHeader Pipes

9. Large 9. Large ““PP--ShapedShaped”” Muffler ClampMuffler Clamp

11. And 12. Large 11. And 12. Large ““PP--ShapedShaped”” Muffler ClampsMuffler Clamps

3. 3. ““JJ”” Header PipesHeader Pipes

6. Cross6. Cross--Over PipeOver Pipe

CatCon Section of CatCon Section of Transition PipeTransition Pipe

10. Muffler Nut10. Muffler Nut

4. Header Bracket4. Header Bracket

8. Pipe Clamp8. Pipe Clamp

5. Header Bracket and Pipe Clamp5. Header Bracket and Pipe Clamp

Page 12: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

My 2003 Ural Patrol, My 2003 Ural Patrol, beforebefore Adding Black PipesAdding Black Pipes

With the original transition/catalytic converter pipe installed on my 2003 Patrol, the Ural chrome “torpedo” muffler extended about 6” beyond the rear axle.

Transition / Catalytic Converter Pipe Ural Chrome

Torpedo MufflerJ-Header

Pipe(Exhaust Pipe)

66””

Page 13: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

CloseClose--Up of the Old Chrome Exhaust System on 2003 PatrolUp of the Old Chrome Exhaust System on 2003 Patrol

Transition / Catalytic Converter Pipe(Transition / CatCon Pipe)

Ural Chrome Torpedo Muffler

J-Header Pipe(Exhaust Manifold)

Muffler Nut

Bracket for J-Pipe Header

The catalytic converter is contained in Ural’s chrome transition pipe in the center.

Page 14: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Modtop Performance Black Mufflers for Ural Motorcycles

Large Large ““PP”” ClampsClamps

Small ClampsSmall Clamps

Extension PipesExtension Pipes

Black PowderBlack Powder--Coated MufflersCoated Mufflers

Step 1: Make sure the pipes will easily fit into each other. Step 1: Make sure the pipes will easily fit into each other. This will save effort to trying to get them to fit, especially This will save effort to trying to get them to fit, especially in the hardin the hard--toto--work work centersectioncentersection between the between the motorcycle and the sidecar.motorcycle and the sidecar.

Tools Required:Tools Required:13 mm, 14 mm, 19 mm Socket Set and Box Wrench13 mm, 14 mm, 19 mm Socket Set and Box WrenchHammerHammerBlock of WoodBlock of Wood

Modtop Performance Black Mufflers for Ural Motorcycles

The Modtop Performance mufflers come with custom-made large "P" clamps, small clamps, extension (transition) pipes and hardware.

Page 15: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Replacing the LeftReplacing the Left--Hand MufflerHand Muffler

Muffler NutMuffler Nut

Chrome PChrome P--ClampClamp

Ural Chrome Torpedo MufflerUral Chrome Torpedo Muffler

Passenger FootPassenger Foot--PegPeg

Chrome PChrome P--ClampClampStep 2: Remove the leftStep 2: Remove the left--hand muffler. This muffler is easier to hand muffler. This muffler is easier to replace and will yield valuable experience before tackling the replace and will yield valuable experience before tackling the right (center) muffler. Loosen the compression joint (muffler right (center) muffler. Loosen the compression joint (muffler nut) at the front of the mufflers with the spanner supplied in nut) at the front of the mufflers with the spanner supplied in the Ural tool kit.

Step 3: Use a 19 mm wrench to remove the rear, leftStep 3: Use a 19 mm wrench to remove the rear, left--hand hand (passenger) foot(passenger) foot--peg (nut & lockpeg (nut & lock--washer) which holds washer) which holds the large chrome the large chrome ““PP”” clamp, supporting the Ural chrome clamp, supporting the Ural chrome torpedo muffler.

the Ural tool kit.torpedo muffler.

Slotted, Round Muffler Nut that Holds Slotted, Round Muffler Nut that Holds the Muffler to the Transition Pipethe Muffler to the Transition Pipe

Passenger FootPassenger Foot--PegPeg

Page 16: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Replacing the LeftReplacing the Left--Hand MufflerHand MufflerChrome PChrome P--ClampClamp

Ural Chrome Transition / CatCon PipeUral Chrome Transition / CatCon Pipe

Catalytic Converter End of the Transition PipeCatalytic Converter End of the Transition PipeStep 4: Using a 14 mm socket and wrench, remove the small Step 4: Using a 14 mm socket and wrench, remove the small clamps at each end of the transition/catalytic converter pipe. clamps at each end of the transition/catalytic converter pipe. Remove the chrome torpedo muffler.Remove the chrome torpedo muffler.

After removing the footAfter removing the foot--peg, the chrome peg, the chrome ““PP--bracketbracket”” is then is then free of the motorcycle frame.free of the motorcycle frame.

Step 6: Install the muffler using the large muffler clamp on Step 6: Install the muffler using the large muffler clamp on the step peg, while rotating the new 9the step peg, while rotating the new 9”” transition pipe. transition pipe. Leave the large Leave the large ““PP--clampclamp”” loose while fitting.

Step 5: Slip the new black transition (9Step 5: Slip the new black transition (9””) pipe tube onto the ) pipe tube onto the old chrome transition/catalytic converter pipe. This new old chrome transition/catalytic converter pipe. This new transition pipe pipe can be rotated to allow the muffler to transition pipe pipe can be rotated to allow the muffler to align properly.align properly. loose while fitting.

Page 17: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Replacing the LeftReplacing the Left--Hand and RightHand and Right--Hand MufflersHand Mufflers

Step 7: Gently rotate the muffler inside the transition pipe to Step 7: Gently rotate the muffler inside the transition pipe to achieve the best fit, always looking to see the angle the achieve the best fit, always looking to see the angle the muffler makes with the frame.

Step 8: After having achieved the right angle, tighten the Step 8: After having achieved the right angle, tighten the small clamp (14 mm ) between the old chrome transition/ small clamp (14 mm ) between the old chrome transition/ catalytic converter pipe and the new black transition pipe catalytic converter pipe and the new black transition pipe (13 mm for new black clamp). Use a block of wood and a (13 mm for new black clamp). Use a block of wood and a hammer (or rubber mallet) to gently tap the end of the new hammer (or rubber mallet) to gently tap the end of the new black transition pipe as far to the left as possible. Then tap black transition pipe as far to the left as possible. Then tap the black Modtop muffler home and tighten the black Pthe black Modtop muffler home and tighten the black P--clamp.

muffler makes with the frame.

clamp.

Alternatively, you may want to leave out the Ural chrome Alternatively, you may want to leave out the Ural chrome transition /transition / CatConCatCon pipe, which will keep the end of the pipe, which will keep the end of the

tailpipe from extending 11tailpipe from extending 11”” beyond the rear axle, or simply beyond the rear axle, or simply delete the black transition pipe and retain the Ural chrome delete the black transition pipe and retain the Ural chrome

transition /transition / CatConCatCon pipeStep 9: Repeat for rightStep 9: Repeat for right--hand (center) muffler.hand (center) muffler. pipe

Page 18: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Modtop Black Muffler Installation Modtop Black Muffler Installation With / Without Ural Chrome Transition/CatCon PipeWith / Without Ural Chrome Transition/CatCon Pipe

Installation Installation withwith Ural Chrome Ural Chrome Transition/CatCon PipeTransition/CatCon Pipe

Installation Installation withoutwithout Ural Chrome Ural Chrome Transition/CatCon PipeTransition/CatCon Pipe

66””

Black PBlack P--ClampClamp

Ural Chrome Transition /Ural Chrome Transition / CatConCatCon PipePipe

1111””

Installation Installation withwith Ural Chrome Ural Chrome Transition/CatCon PipeTransition/CatCon Pipe

1111””

Installation Installation withoutwithout Ural Chrome Ural Chrome Transition/CatCon PipeTransition/CatCon Pipe

Installation of the Modtop Performance mufflers without the chrome Ural transition pipe is much more pleasing, as it doesn’t extend as much beyond the rear axle.

Page 19: Ural ( ) - Dnepr ( Mufflers for Russian Motorcycles with ...cvkustoms.com/PDF/Part_3_Installation_of_Modtop_Muffler.pdf · Ural (Урал) - Dnepr (Днепр)Mufflers for Russian

Curing the Modtop Performance PowderCuring the Modtop Performance Powder--Coat ExhaustCoat Exhaust

•Powder-Coating Has Dried, But Needs To Be Fully Cured by the Heat of Exhaust System–Do Not Overheat the Part before It Is Fully Cured–Run the Engine in a Well-Ventilated Area Only–To Cure Coatings on the Motorcycle:•Allow Engine to Idle, or Drive Gently for Approximately 60 Minutes, or Until No Vapor/Smoke Is Given Off by the Coating

•Caution: Excessive Exhaust Heat, Due to a Poorly Tuned Engine Can Damage the coating During the Cure Process–Do Not Install on a New Engine Until All Adjustments Have Been Made to the Valves, Timing and Jetting

Gentle operation or idling for one hour completes the curing process of the powder-coat.