dan williams

Hmmm could have an air leak. You could try the ether quick start test. Start it and let it idle then spray short bursts around the intake manifold and see if the idle changes.

The GasGas brand is certainly worth something. If not then why so many sand in the panties responses. "Rescue" the company? Not gonna happen. Start another company with the GasGas name? Probable like the Sherco was originally the new Bultaco. Stymied by a guy in the U.S. who owned the name and wouldn't give it up. So somebody buys the name GasGas for a song who already has manufacturing capability. I still think it's exactly the type of scenario that fits the Chinese way of doing things. Buy the name and manufacture domestically while keeping an import pipeline into Europe. Remember you buy the name only. The importers/dealers all must be renegotiated. Promotional materials reprinted. Manufacturing contracts with suppliers renegotiated. Import export license refiled. All this stuff becomes void once the company ceases operation. It isn't simply a matter of turning the lights back on and getting back to work.

Betas are known to not tolerate low octane fuel. They will knock and ping rather badly. The other common thing with the Keihin carb is they have tiny orifaces for the bleed air circuit for the pilot so you have to blow them out with compressed air to properly clean them. If you look at the exit hole at the bottom of the carb bore just behind the slide it looks fairly large but it isn't. About 2mm down it constricts to a tiny hole that is so small that a water bubble can block it and it will stay blocked because the surface tension won't let it evaporate. I noticed this on mine while looking at it through a microscope. I couldn't figure out what the silvery sphere was blocking the hole. My advice is to pull the carb again and go at it with compressed air. Get some Torx security bits so you can pull the center tower. After that good gas with no water. No ethanol if possible. For me this is a twice yearly drill. Oh and don't run wire or anything else through the jets.

Wise Duncan. Squeeze that thing for all the fun you can get out of it. Nobody in their right mind buys a trials bike as an investment.

As I've said before the best way to get rid of a bad rule is to enforce it exactly as written. Lax enforcement just perpetuates and accumulates bad rules.

Anything based on propylene glycol such as Engine Ice or Silkolene Pro Cool or the stuff pointed to above. The old style automotive types based on ethylene glycol aren't recommeded mostly for their toxicity but also because mixing them with tap water like we all used to do turns out to eat engine cases because of ionic contaminents. The propylene glycol ones are all premixed with deionized water.

The WTC is largely irrelevant if there aren't enough riders at the grass roots level to justify it. A NASCAR win doesn't sell a lot of cars in Europe and a WTC win doesn't sell a lot of bikes when there are fewer and fewer trials riders.

Hmmm I could be wrong. Then again a lot of these carb designs really started out as street bike or scooter carbs so....

Don't worry about the feel of a two stroke. One of the common questions when I meet people on the trail is, "Is that a four stroke?" A trials two stoke is all about the low end torque and you'll get used to it very quickly.

We are all biased to some point. The Betas are great bikes. GasGas just declared bankruptcy and Ossas were built in the GasGas factory so they are shut down for now as well. Scorpa and Sherco are now made by the same company. Both nice bikes. Honda/Montesa are the predominant four stroke but are significantly more expensive than the other brands. Four stroke vs. two stroke might get you just as much debate as the brand. Personally I like two strokes. Lighter and easier to fix when something goes wrong. Since trials bikes are not run at high RPM the two strokes are pretty much put in premix and ride. Wear is not an issue as it is on a two stroke motocross bike. A set of rings lasts for years. The four strokes seem to need a lot more maintenance and to be honest I've been working for a few months on a friends four stroke Beta that has never run right since he's owned it. He also has a 2014 EVO 300 factory two stroke that is wonderful. I have a 2013 Beta EVO that has also been good with minimal problems. I've also had an '87, '91, '95, '00, '02, '05, '08. All have provided great service with minimal problems. Don't be afraid to ask on the brand forums. You'll find lots of fanboys but you'll also find some brutal honesty about problems with the bikes like Beta stators and GasGas gearboxes.

Looking forward to a good eyeball of the bikes in Rhode Island as that is probably the only chance to see them in the U.S. Until they hit production.

The spring keeps the slide from bouncing around and causing self actuation. I'd be real hesitant to mess with it. Of course someone could have fitted a heavier spring. Try another with the same model carb to see if it feels the same. As above make sure the bar is clean under the throttle tube, lube or replace cable an make sure the routing isn't pinching it anywhere. Note that most modern cables have a Teflon inner sheath and don't require lube so if you see a significant difference with lube it's probably time for a new cable. Make sure the slide is operating properly. It should snap back with a THWOCK sound when you let go of the throttle. A clean carb is a happy carb. Make sure the throttle is not mounted on the bar in such a way that the end of the grip is binding on the end of the bar. Lube the pully wheel in the twist grip. There could also be assembly issues with the carb. If someone didn't assemble it properly something could be binding. It is a simple system but also delicate.

Could be prohibitive? You guys haven't priced out ruggedized electronics. There's two ways to do this, well there's a million ways but two main architectures. Checker has transmitter and receiver is on bike or transmitter is on bike and checker has receiver. Remote radio for the checker is a non runner due to terrain. Better to have the receiver on the bike that can dump accumulated results when it gets within range. Communication by Bluetooth so receivers should be preprogrammed to recognize and automatically pair with the observers transmitter. The observer needs nothing more than a small box that displays rider number and confirmation of score received plus buttons for 0,1,2,3,5, 10,25,DQ. Or whatever your local penalties for bad behavior are. Other bikes would have to be kept out of the range of the observers transmitter to prevent inadvertant pairing. Not too difficult with low power Bluetooth. As a radio backup SD cards in the receiver and transmitter. So about £300,000 to £500,000 to develop if there are no regulatory hassles and each system could probably be brought in for ~£60,000. When do we start? Or you could just pay that money to observers including training. If you say, "But motocross uses them." True but motocross just has to have one receiver set up that records a bike passing one point with a time stamp. Enduro is similar with several receivers. This is much more complex and much more prone to going wrong.

Keihins are rather touchy about moisture in the pilot circuit. I find that when my bike starts acting a little odd at low throttle settings it's due for a disassembly and clean with compressed air. This includes pulling the center tower that can be removed with a Torx security bit. I have to do this about twice a year.

Eeek! I just noticed the rod through the rear sprocket. Guess I know how he got the flywheel undone. Not great for the crankshaft.

jj65 a win at any cost might be a Pyhrric victory. Any business that is to survive has to be conscious of the bottom line and even if Adam's salary is not too high just the cost of providing support for another world contender might be far more than Vertigo has in the piggy bank. It'll be very interesting to see who shows up in the U.S. this year and with what kind of support.

Friend has a 2014 300 Factory. Sweet bike. I thought it would be all kinds of unridable but it is about the smoothest and most forgiving engine I've tried yet. The chassis feels about 10lbs lighter than my 2013 300. If it doesn't break the bank go for it. Especially since with the GasGas troubles he may not have it long. Beta's are getting in short supply.

Yeah the '08 graphics threw me. There are three coils that are part of the ignition. The yellow one powers the CDI and provides the primary current to charge the capacitor. The two small coils on either side are trigger and sense coils that tell the CDI when to fire and how much advance to use. These are wound with very thin wire and are typically what goes out on these ignitions. I fought with one of these for months before finally admitting it was probably bad. I'd advise just pulling the stator and sending it to a rewind shop for testing and probably repair. For the clutch see the clutch fix pinned at the top of the forum.

Yeah the CDI box has a uController in it. I've noticed the twin trigger coils which I assume is the engine speed sensor to set the advance.

If it's a reed valve engine (I think it is) it should make no difference.

The site glass where you check the transmission fluid. Beta uses two different primary gears on the crankshaft. One has a flywheel integrated with the gear.

Does it have the flywheel on the primary side? You can see it through the sight glass.

Glad it helped and welcome to the Beta forum.

Since I took a vacation day today to recover from the last trial here's more clutch fun though it's more to add to the general knowledgebase of our favorite Beta parts. I measured up the springs and spacers on my bike, did some math and ordered some custom washers with even less preload along the lines of the washers made by "IKB" in another thread. It'll take three weeks for them to arrive. I ordered them through a place called eMachineShop. Kind of fun to be able to design prototypes. The spacers will have an additional 1.5mm of preload relief for a total of 3mm. I also made the top plate thicker to accommodate a flat head screw. From my measurements I figured I had at least 7mm to play with. I've hopefully attached the drawings here. Oh oh apparently I'm not allowed to upload the .ems file. If anybody loads up the eMachineShop software and wants the file let me know. I also have 30 of the washers coming so I'll have a few spare sets if anybody is interested. My calculation for the total pack preload was something like 159lbs for stock, 139lbs for the red spacer turned to provide a 1.5mm preload reduction and 119lbs with the 3mm preload reduction. Running with two less springs came out to something like105lbs but I apparently didn't save the spreadsheet because I'm an idiot. Clutch Spring.pdf

I think the reason you're not getting any answers is that doesn't look like any Beta ignition I've seen. The markings on the coil are just a stylized logo of the letters CDI.