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About pschrauber

  • Rank
    Advanced Member
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  • Bike
    Bultaco Sherpa 340

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  • Location
    Winter North Germany / Summer South Finland
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  1. Wow 6in! 6 inches = 6 Zoll = 6 x 2.54 = 15.20 cm That is very much too much and you and Venhill where talking about the same model?
  2. Riding my new TR34 in 1987:
  3. Great bike, nice arrangement with the flowers and it seems to me that you are a real Honda fan as your kid's are riding Hondas too! Thumps up for getting it started again. In my personal experience, give the carb an ultrasonic clean, especially the jets might be a bit clogged.
  4. No differences, then why is Motul producing two oils? You might change the bike shop ... I wouldn't thrust them?
  5. For explanation Motul 800 is made for road racing and the oil has a flame point of 252 deg. Celsius. While Motul 710 has a flame point of 94 deg. Celsius. This oil will burn up easily at suits much better to your needs. Even in my 500cc KTM 2stroke bike from 89 which is a monster I would not use Motul 800 too high flame point even for that high performance engine as the motor uses around 5 to 10l am hour!
  6. Motul 800 has a high burning point. When the oil is coming out of your exhaust it did not burn, I think the engine is running not hot enough for Motul 800 you might try out Motul 710 which birns up easier due to the lower flame point.
  7. 50:1 is very good works with all type of bikes you might go a bit less of oil for trials riding 75ml for 5l gasoline is my mix, (which is around 66.67:1). I am using 50:1 for my 89 KTM 500 cc 2 stroke enduro/MX bike works flawless. I use Ipone or Putoline half synthetic with a low burning temperature as oil. Gasoline is Aral Ultimate 102ROZ without ethanol or Aspen fuel. My tip: You might stay away of any fuel with ethanol very bad stuff depending your climate the storage of a fuel mix with ethanol can be very short.
  8. The later 199b engine with 340cc is much slower in any reaction 199a model in standard set up. The 326cc feels snappy against the 340 in my opinion. I had mounted the lighter flywheel of the 250cc to the 340cc and that was for me a bit too much power you might try yourself. Improvements I liked: - carn swap fo 28mm Dell'Orto, - rear silencer with less low reduction of the exhaust vapors. - clutch improvements, - no changes to the ignition, I can't see the super improvement beside less maintaince.
  9. What we / I did back im the days with earlier Sherpa models we took a a garden hose cut off around 20cm then cut that piece up lenghtwise and mounted it with a hose clamp to the frame. That worked very well.
  10. See Messenger
  11. Before you replace all bit's look up the overall costs and compare with other possibilities.
  12. The tank seat combo is different but still might fit. Whatch out for the mid silencer. How did you get cracks in the original 242 red tank seat combo that is nearly impossible?
  13. Check your slide, sadly AMAL uses the same material for the carb body and the slide which results and wear so the slide starts rattling around in the carb and if the slide rattles the needle will do it too. In the end or very soon you have a worn slide and needle and needle jet. There are two fixes to that problem: - a chromed slide for the AMAL or - a different carb. As non of the mentioned fixes are cheap I' am using a Dell'Orto PHBH CS in my 242 with great performance increase. Finally I can now adjust the carb and it really has an effect to the engine, also the fuel consumption is lowered.
  14. The bikes are very unique and so is the engine. The cam shaft is mounted down in the engine base and the valves are moved by rods. This is a very simple construction, but too very crucial to oil supply. The first bikes had problems with the valve engaging levers not getting enough oil, the engines needed a certain time to build up oil pressure and to apply enough oil to the head. I had this problem back then and needed new valve engaging levers which took Italjet half a year to deliver them back in 1983.I don't think there are any spare parts for this 4t engine available. Even donor bikes and engines are a problem. The motor is not very suitable for trialsriding anyway, a 2strocke Italjet works much better, not being said that this is the best twinsbock trialsbike.
  15. May be your bike has lost the rubber between gas tank and frame or it was replaced by thinner rubber or the rubber has shrunk in thickness. I would try to place thicker rubber between the gas tank and the frame.