How do I get more out of my 426???

40 replies to this topic
  • grayracer513

Posted August 05, 2007 - 03:55 PM


I've had my manual decomp on my 426 for almost 2 years now and I doubt you could get your 450 started any faster than me, kicking or bump starting hot or flooded. I know my compression braking has saved me from some hairy S**t coming down the big hills at Carnegei and certainly wouldnt want to change a thing about that. The only downside to MD is on the starting line of a harescramble but so far I've gotten mine first kick everytime and have had good starts.

In the first place, your comment concerning engine braking shows a complete misunderstanding of the AD system. It has no effect on any aspect of the engine's operation at all once about 600 RPM is reached.

In the second place, my first experience with a 4-stroke with a compression release took place approximately 39 years ago, not 2. I am intimately familiar with everything that can be done with a compression release, including bump starting, flood clearing, and using it as a kill switch. In fact, I nearly didn't buy a YZ450 for the simple reason that it didn't have one. While having one would actually be very occasionally convenient, mostly while working on the bike, it is otherwise the most useless piece of crap I could imagine having on a bike with AD. You simply won't ever miss it.

And from extensive experience with bump starting a long list of thumpers you've never heard of with a compression release, including a YZ426, I promise you that there's no way it's easier that way than with the 450 AD cam. Trust me.

Related Content


Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies

James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.