Jump to content

nzralphy

Members
  • Posts

    724
  • Joined

  • Last visited

Posts posted by nzralphy
 
 
  1. Hi NWR 

    Hi from New Zealand. Yes trails is a complete blast. I've done many types of motorcycles and always hang onto my trials bikes. Put a couple of boulders in the garden and ride around or over them for a few hours per week will do wonders for your skills (get the basics right).  Ralph

  2. Hi Mike

    Welcome to trials! Well 30hr is some going in such a short time! practice the basics a lot. Lot n lots n lots - huge hours will pay off! find a bump or a slope and do figure8 in all different angles. 

    Dependant on the gap between the bearing and the hub I would either use some loctite 620 bearing fit which can fill some impressive gaps, or a speedy sleeve.

    Ralph

  3. Yes often it is black - trials 4T bikes tend to run a rich first range of carburettor tuning to help with idling through without stalling and a snappy pickup.

    Typically Beta ships the bikes to pass emissions, I would suggest try lifting the needle (drop the clip) one or two notches and see what the mid-range does (typically it will be stronger). 

    My bike has the idle mix tuned for the day/weather but 2 turns out is not unusual.

    Also....call the importer and get his advise as he will know what is a good combination

    • Like 1
  4. Yup fit the narrow x ring chain. You will likely still have the same chain many years later. 

    Back in the day I adjusted my ORing chain on the first day on SSDT and that was it. Done. Different story for the standard chain guys!

    • Like 1
  5. My Beta4T has a lot more character and is more fun to ride over the Beta 2T. For me it balances better and has a LOT more traction at all revs (and it constantly amazes my mates) I'll not go back to a 2T.

    Canyou do your own maintenance? You need to factor in the valve adjustments $$ by a mechanic.

    The 4T is quieter and is SUPER easy to start. You never need to rev n 'clean out' the engine like a 2T.

    The 4T loves to rev - good for hills 

    The first time you ride the 4Tyou will instantly feel and you'll notice approx 3kg heavier engine. After 1-2hrs you won't notice it as you adapt.

    • Like 1
  6. The spacer is either under or over the needle clip and gives another "1/2 clip" adjustment.

    Also remember that the bike ships from the factory set to pass emissions testing. To do this the mid range is very lean.

    You can dramatically change the 4T bike performance by raising the clip to the bottom (likely too far) or next to bottom position. The mid range is way fuller, smoother, and more powerful.

    Jitse make a fantastic finger/wheel screw adjuster for the idle mix

  7. On 22/08/2017 at 1:18 AM, dan williams said:

    I don't think WD40 will work anymore. I think they stopped using propane as a propellant. Starting fluid will work.

    Good to know, thanks

  8. I would spray some brake cleaner or WD40 all around the inlet manifold area and see if the engine note changes. If it does you have an air leak.

  9. There is nothing wrong with this type of carb! Do Not change it as it is very good at metering fuel for the difficult 4T engine. Seriously. Even the factory kitted 300cc bikes used this carb.

    The bikes ship with a very lean mud range to pass emissions. So you need to raise the needle - lower the clip to either the bottom or second bottom groove. Note that there is a plastic spacer either over or under the needle for a half groove adjustment.

    The main and idle jet is the correct size from the factory.

    The carb has a VERY thin air balance bellows and it can get a crease way too easy. Check it out.

    Fit a Jitse air screw to help tune the mixture to about 2.5-3 turns out

    The carb air ways are very small so take your time and inspect it with a torch

    Set the spark plug gap slightly large.

    Bin the original Beta kill button. Check the kill button earth and attach it really well to the frame.

  10. Ok first hand experience - I used to build and ride unicycles.

    I also did a heap!!!!!!! Of other things to try to get better at trials.

    Did it help. Not really. I could have but really I would go spend that same money on a one day coaching session with a pro. Get a mate to video it if you are allowed. Every time I have been to a coach it has helped a lot more than I ever thought it would.

 
×
  • Create New...