Rave Reviews

Hey Stevo, thanks for building my son’s YZ112 Supermini motor. This thing rips and is super smooth...

 

 

WANTED: Your Cores

Got spent crank and / or cylinder cores?  We'll take 'em!  And we'll compensate you for any core we receive that can be rebuilt.  Get in touch and send or bring it on in!

Tech Tips

Tech Tip #7

For Four Stroke riders including pit bikers, we strongly suggest constantly adding fuel conditioner and stabilizer to the $3.30/gallon gasoline that America's oil industries are giving us. This gas goes bad so fast it is almost a given it will clog your pilot jet. The smaller the hole, the easier it is to clog. We use Spectro FC Premium which is a great product to help ward off this problem.

Home > Services > Clutch Mods
Clutch Mods

 

Clutch Problems???  Broken Plates???  We can fix 'em, and help you prevent problems in the future, too.

Through our years of experience we have found heat to be the number one source of clutch problems.  When you encounter a broken clutch fiber the chances are it was heat stress that caused the fiber to fail.

The biggest mistake people make is to replace only the broken plate.  All of the fibers have been put under the same heat stress as the one that broke and it is only a matter of time before they break too.  We suggest changing ALL fibers.  We also suggest inspecting the inner hub and pressure plate and replacing these if needed.

STR Clutch ModsSTR Clutch Mods

Our solution to keep the clutch cool?  Send us your inner hub and clutch basket.  For $50 we will machine slots in the clutch basket fingers (ala Hinson) and drill holes through the inner hub to increase oil flow to the clutch components (see photo left).  This is done on our computer indexer in the Bridgeport.  The factories don't do this because they cannot be cast in this form and it is not cost effective to machine them after. 

After five months of testing our 250 clutches with these modifications our steels look like they just came out of the package!

 

One day turn-around

        Clutch Kits $150?   STR Clutch Mods $50? - You Do The Math

 

 

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