Just bought a new Carryover YZ426F and its a bit** to start!!
Posted February 22, 2004 - 03:04 PM
Posted February 22, 2004 - 03:31 PM
I used to use my weight on a KX500, that style does NOT work with the thumpers, the trick is to get just past tdc, then get the lever at the top, then kick through a complete rotation.
It should just pass another tdc when your leg is almost fully extended on the kick, it'll fire right at that point.
Posted February 22, 2004 - 03:37 PM
Once it's warm it starts one kick without the hot start button.
I've read some things that suggest that I am lean, but the temp does have an effect do I'm still trying to figure it out.
Hope this helps, good luck.
Posted February 22, 2004 - 03:59 PM
Also, for some reason If I start mine in cold weather and don't let it completely warm up, it's a pain in hte A$$ to start again. Let it warm up completely if you start it.
Posted February 22, 2004 - 04:03 PM
Kick it over until it starts up on compression. That's when the kickstarter will stop. Once it's stopped, pull in the compression release, and push the kickstarter about 1 inch. Release the comp release. Return the kickstarter to the top of the stroke. Keeping your hand off the throttle, kick it through. If it's jetted right and you have a good plug, it'll start.
Posted February 22, 2004 - 04:42 PM
Posted February 22, 2004 - 05:00 PM
FOOLPROOF STARTING TIPS FOR YZ-F OWNERS
There is no doubt that the Yamaha YZ-F will encourage lots of new riders into the four-stroke fold. The rite of passage for any neophyte four-stroke rider is starting one of the beasts. The golden rule--tattoo this on your forehead is: "Thou shall not touch the throttle at any time during the starting process."
If you are smart, you will do exactly what we tell you. If you’re not smart...good luck.
Step one: With the transmission in neutral, turn the gas on and pull the choke out.
Step two: Kick the engine through slowly until you come to the hard spot (where the kickstarter will not move). This is called "bringing it up on compression."
Step three: Once you have brought it up on compression, follow these three steps: (1) Pull the compression release in. (2) Move the kickstarter about one inch past compression. Do not move the kickstarter so far that the piston goes through compression and moves too far down into its intake stroke. A little dab will do ya. (3) Once you have nudged the piston over top dead center, allow the kickstarter to return to the top of its arc.
Step four: Release the compression release.
Step five: Kick with a steady but full stroke (from the top of the kickstarter’s arc all the way until the kickstarter hits the footpeg). If you did everything as prescribed, the YZ-F will start. However, if you touched the throttle, it will not.
Throttle tip: instead of holding onto the throttle with your right hand, hold onto the brake master cylinder.
Hot starting tip: Pull the hot start button out and follow steps one through five. Push the hot start button in as soon as the engine starts.
Cold start tip: Before you start the YZ-F for the first time, give the throttle two little blips. This will put a small dose of fuel into the top-end. No more than two blips. Never blip the throttle before starting a hot or warm engine.
Enemy tip: If you don’t own a YZ-F but want to ruin the day of a YZ-F rider who you don’t particularly like, go over to his unstarted YZ and give the throttle four or five healthy twists. The accelerator pump will fill the engine with fuel and it won’t start until the following Thursday.
The word: The Yamaha YZ-F isn’t the easiest starting full-size four-stroke engine made--that honor goes to the KTM 520SX or anything with an electric starter, but the YZ-F will start every time--if you follow the drill..
Posted February 22, 2004 - 06:11 PM
During the summer, the riding here is almost endless...
I have some pictures, but no way to post 'em...
Posted February 22, 2004 - 06:22 PM
By your description, you "stalled" the engine. When this happens, it's alot like flooding it. In that situation, you need to hold in the compression release and give it about 10-15 kicks. The next kick, do the routine to getit past TDC and it should start right up. When you stall, do not "blip" the throttle, that will only make it harder to start.
Eventually, you'll find the best start-up drill that works for you in all the different circunstances... cold start, hot start, starting after stalling, and starting after the pesky nieghbor kid sat on your bike and blipped the throttle a couple dozen times!
Good luck, and good riding!
Posted February 23, 2004 - 12:44 AM
Compared to my 2 smoke with a leaky bottom end, the 426 is a dream to start
Posted February 23, 2004 - 02:44 AM
Posted February 23, 2004 - 05:34 AM
Here is some advice to make starting a simple thing on the bike:
1. buy and install a yz450 cam, new cam chain tensioner gasket and plug from VibeGuy (or the 450 plug for removal of the decompression system on the bike and from the head).
2. Buy a ZipTyRacing fuel screw
3. Check the accel pump squirt and adjust as needed according to the BK mod.
4. Buy a JD jetting kit.
All that makes the bike start like a 2 stroke. The DrD hotstart setup on the handlebars also makes using the hotstart simple. no reaching down on the carb.
If you have questions on any of those points there, search the YZ4xx forum.
Posted February 23, 2004 - 05:45 AM
Posted February 24, 2004 - 06:41 AM
My bike hasn't been touched for 4 months. I brought it out Saturday morning in the cold and it fired up on the 4th kick. (With the decrompression sequence prior to each kick that is)
Me too, three kicks though. And I gave the throttle three twists.
Posted February 24, 2004 - 07:24 AM
Posted February 24, 2004 - 03:46 PM
Posted February 24, 2004 - 06:38 PM
Posted February 25, 2004 - 06:04 AM