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Dear Yoshimura Customer, 

Congratulations and thank you for purchasing a Yoshimura Exhaust System.  Over six decades of experience in research 

and development, state of the art machinery, materials and craftsmanship of the highest quality all come together in a 

product of exceptional quality and performance—in other words, this is the best thing you can put on your bike. 

We strive to provide you with a product perfect in fit and finish.  However, if you have any problems, please give us a 

call.  We have found that most fitment issues can be easily resolved by a conversation with one of our knowledgeable 

and friendly staff.  If the issue cannot be resolved this way, our warranty evaluation program may be the answer.  Please 

take a moment to review our recommendations for the care of your exhaust and our warranty information. 

 

PLEASE NOTE:

 If you have any doubts about your exhaust: 

DO NOT START THE MOTORCYCLE! ONCE AN EXHAUST HAS 

BEEN USED OR MODIFIED, IT CANNOT BE RETURNED FOR CREDIT OR EXCHANGE. 

  

 

EXHAUST SYSTEM MAINTENANCE 

Yoshimura Exhaust Systems require very little care and maintenance; here are a few tips: 

1.

 

Use mild car/motorcycle soap to clean the exhaust system—do not use any abrasives or degreasers. 

2.

 

Clean your exhaust with metal/stainless polish every 1-2 months to retain the luster and remove dirt and grime. 

(DO NOT USE POLISH ON “WORKS FINISH” SYSTEMS) 

3.

 

Avoid contaminating exhaust surfaces when hot. 

4.

 

4.Your exhaust system will change color (blue, magenta, purple, and/or gold) due to heat; this is normal. 

5.

 

Keep all clamps, bolts and other fasteners tight as exhaust systems are susceptible to vibration damage. 

6.

 

If you ride in coastal regions or areas that use salt to control ice and snow, wipe the exhaust down after it cools to 

remove any possible salt residue, which can result in rusting. 

7.

 

If you are storing your motorcycle for the season, wipe the exhaust system down with rubbing alcohol before 

storage. 

8.

 

Head pipes glowing (visible in normal light) may indicate an excessively lean condition that must be corrected. 

 

CARBON FIBER: 

Carbon fiber equipped exhaust components require special attention. The following addresses wear issues directly 

related to carbon fiber: 

1.

 

Keep all clamps, bolts and other fasteners tight.  Carbon Fiber is very susceptible to vibration damage. 

2.

 

Keep all chemicals and solvents away from the carbon fiber, as they will damage the finish. 

3.

 

High temperatures will cause the resin in the carbon fiber to break down. Visual signs such as an amber hue in the 

resin may be early signs of heat damage to carbon fiber. 

4.

 

Upon seeing amber colored resin, discontinue use. The exhaust system needs to be inspected by a representative 

from Yoshimura, for repack, and/or repair. Continued use will cause component failure. 

 

STAINLESS STEEL: 

Stainless Steel is not rust proof but is less prone to rusting, staining and pitting; but it is prone to oxidation like all 

metals.  

 

WORKS FINISH: 

1.

 

Works Finish exhaust systems should never be cleaned with abrasives or polishes. 

2.

 

Yoshimura recommends using “Bar Keepers Friend” cleaner to remove minor stains. 

3.

 

Surface reconditioning services are available to remove scratches and undesirable discoloration due to extreme 

heat. Contact Yoshimura Tech Department at (800) 634-9166 / in CA (909) 628-4722 for more information. 

 

 

Summary of Contents for Street Series

Page 1: ...e components may be necessary to install your new Yoshimura exhaust depending on the application Read through all instructions before beginning installation Exhaust system can be extremely hot Let mot...

Page 2: ...YM5 DFCX for use with CF sleeve MCYM5 DFCX X for use with SS sleeve 4 HT SHLDR77 Muffler Clamp Heat Insulator 1 5 RACE SPS 1 Medium Exhaust Spring 2 6 M5X10 BOLT 5mm x 10mm Socket Head Cap Bolt 1 7 5M...

Page 3: ...appear on the display CAUTION Exhaust system can be extremely hot Let motorcycle cool down before beginning installation Always wear hand and eye protection and take precautionary measures to avoid i...

Page 4: ...ystem and rear suspension i e tire swingarm brakes rear shock and etc If any problem is found please carefully follow through the installation steps again If problem still persists please call Yoshimu...

Page 5: ...nd other fasteners tight as exhaust systems are susceptible to vibration damage 6 If you ride in coastal regions or areas that use salt to control ice and snow wipe the exhaust down after it cools to...

Page 6: ...Yoshimura recommends on all race exhaust systems that all spring joints be safety wired Recommended wire type 304 316 stainless steel with a 032 diameter should be used YOSHIMURA EXHAUST LIMITED WARR...

Page 7: ...nd double check all drawings and instructions 2 Make sure muffler clamps are installed correctly refer to instructions diagram On many models there is a right and wrong way to install Also verify part...

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