dan williams

Sorry, Gas cap. If the vent /hose thingy in the gas cap gets blocked then riding the engine under load, like on an uphill, can cause the bike to use enough fuel to cause a vacuum in the tank. Tends to interrupt fuel flow into the carb so the bike will run lean under load but seem perfectly normal when just idling or puttering around.

Don't worry, soon all will be made in China and we can get them at WalMart or your local equivalent. Any brand. Really all this angst. Two of my mates just received new GG racing models. One won't take it out of the house yet because it's winter but the other took it out last weekend and a mate with an 08 Raga who got to ride the new bike placed an order that night. Another with a Sherco said he would if he could afford it. I'm not a GasGas rider as anybody from the Beta forum can attest, just can't seem to get along with them, but I've seen the newer bikes take some awful beatings and survive quite well. I wouldn't accuse GasGas of being stupid. The best way to seize market share is to attack while the market is weak. This bike is clearly an aggressive stab at market share from the mid-level buyer. I would expect after the Raga comes out for the top end any leftover parts will end up in another economy model. Not every sale needs to be at the start of the season. GasGas is showing a keen understanding of market dynamics.

Agreed, sounds like the poor thing is starving for fuel. Check for the blocked breather hose on the cap. I believe there is a check valve in the cap to keep fuel from leaking after a crash. That valve could be stuck too. Should respond to a shot of carb cleaner. Perhaps a test run up a hill with the cap cracked open a bit will tell.

Thanks, I must be starting to get the writing bug again.

Be careful what you remove. On the Rev3s the fan still needs the regulator box even though the later models ran the lights unregulated directly off the stator. I would guess the EVO is the same. On the Zeros people would often remove the rectifier when they took the lights off and that would eventually fry the fan as well. Expensive little mistake that was.

Forget the tea sir? You cut me to the quick. I live on Earl Grey. I have even been to Bergamo! Oil of Bergamot is what makes Earl Grey, Earl Grey! I merely don't advocate a cuppa in the vicinity of dangerous chemicals. This is almost as insulting as when I was in Limerick and the locals kept asking if I wanted a Budweiser. Then they'd snicker. Oh the indignity! Missing from this pic is one of my other favorites. The Twinings Christmas Tea. Come to think of it this year's Italian world round is in Foppolo again just north of Bergamo.

I currently use the IPone because I won a raffle and got a bunch for free but I've used Bel-Ray MC1 and Spectro and Mobil 2T. Basically any good synthetic will be fine. Oil failures are pretty rare these days with water cooling and chrome/electrofusion cylinders. Even rarer in a trials bike.

Hmmm if mixture then it should be worse when air temp is cold. Could be ignition timing. Advance could be shifting when the stator heats up. Sounds like your engine is just on the edge of lean. Did you try raising the needle a notch. The problem with an engine that's this close to right is richer mixture/retarding the ignition timing/higher octane gas can all "cure" it even though they may not be the problem. Could even be something even dumber like a partially shorting kill switch or plug wire. There are days I really wish Betas had on-board diagnostic computers.

Ah the best way to learn is to do it. You're not as bad as you think. Unless the bike has sat for a considerable time there will be fuel still in the float bowl (that rounded squarish bit at the bottom of the carb) Here's the task broken down, What you need, Carb cleaner, Small flat blade screwdriver, #2 philips screwdriver, compressed air, WD-40, small adjustable or some good deep/skinny small sockets. FIRE EXTINGUISHER! Dude it

2.5 hours!!! I take about 8. Then again I'm working under a microscope and am a bit of a twit.

Heh heh We call it the "english" system of measurement but they don't use it in England. Pardon my forgetting.

The Rev3's LOVE high octane gas. If you're running pump gas they'll not work anywhere near their potential. Typically the Mikunis came from the factory with 30 pilot jets and I think 140 mains. Usually around here we knock the pilot down to a 27.5 and depending on weather the main to a 135. If you can't get good fuel you might be able to retard the ignition a bit but the engine will lose some of its "pop".

Should be similar to a Rev3 which is about a quart from empty. Just pour it in till it stops taking it. Squeeze the hoses to work out air bubbles in the system. Then run it a while and after it's run for a bit let it cool and check the fluid again. Fill and forget.

Coming off the stator up to the CDI module connector there will be a harness with four wires that go to the CDI connector and a yellow wire that splits off for the lights. The four wires to the connector are, Brown = System Ground, Red = CDI charge wire, White = (I think) CDI trigger microcontroller power wire, White with a black stripe = (again a guess) actual trigger. Coming off the stator side of the connector will be a wire that originates from the CDI box and doesn't go down to the stator. That is your kill switch wire. Wire one side of the kill switch to that wire and the other side to one of the screws that mounts the ignition coil.

Ethylene glycol is traditionally used in automotive systems. The real benefit of the premixed propylene glycol coolant, aside from non-toxicity, is it uses deionized water which significantly cuts down on the chemical reactions that are corrosion. Tap water is full of chlorine and fluoride and iron and metallic salts which will pass right through you but wreak havoc on your engine.

Could have blown the seal in the master cylinder on the handlebar. Easy fix if that's the case.

Just for safety's sake I'd recommend using a propylene glycol based coolant like Engine Ice or Silkolene Pro Cool. If the engine does have magnesium parts better to be safe then sorry.

Yeah it went to a wheel sensor. These things never worked well as they were made for bicycles and the sensor wires weren't shielded well enough to prevent the ignition from messing with the signal.

Probably be easier to justify this to the wife then most parts purchases.

and you need to make one of these.

Could be why people are shearing keys. 140Nm is correct. Roughly 103 lbs/ft.

Hi Bieze, I tried to reply before but I think the firewall at work squashed it. I went to watch the TdN in Bertrix, Belgium in '89 with a buddy of mine who lives in Germany. Great roadtrip in his Renault R4. Loved Belgium. Beautiful country, friendly people, tasty beer and the best chocolate ever. The pomme frites with the mayonaise were a bit dodgy though.

From a post in 2004 by someone named Viking. This should probably be a sticky too. Tightening torque Rev3: Shock absorber-Swingarm 45Nm Shock absorber-Frame 45Nm Connecting frame rod-frame 23 Nm Cylinder-Crankcase 20-23 Nm Primary drive gear 120 Nm Handlebar 25 Nm Engine-frame 50 Nm Swingarm bolt 90 Nm Front wheel axle 65 Nm Rear wheel axle 65 Nm Steering stern bracket 25 Nm Rear fender bracket 10-15 Nm Front brake pad 20-23 Nm Rear brake pad 20-23 Nm Engine Head-Cylinder nuts 15-16 Nm Front axle fixing nuts 10 Nm Flywheel 140 Nm 1 Nm=0,1 kgm

I'm not familiar with the Montesa but this is what I made for a Beta. Couple pieces of bar stock, some screws and washers and handled 100ft/lbs no problem. Cost about $6. No slippage and plenty of leverage. Just be careful the bolts don't go through the flywheel into the coils. Aluminum washers help keep the spacing correct.

Apparently you didn't wedge it in place with cheese like I told you. All that stuff you went through with the brakes as far as bleeding and chasing bubbles. You now have to do the same after reassembling the clutch. You may be chasing bubbles for a while. Patience is required since it sometimes takes a while for trapped air to work its way to the top. You can back-bleed to speed up the process but to completely clear the system takes time. Good luck.