Jump to content

Alan.Tdm

Free
 View Profile  See their activity

  • Posts

    40

  • Joined

  • Last visited

 Content Type 

Posts posted by Alan.Tdm

    Pipe

    in Classics

    Posted

    I did buy the recommended part from Yambits but the 4mm bore is to big. 3mm works okay. Maybe I can ring them to see if they have the correct listing ?

    • Like 1

    Power

    in Classics

    Posted

    Recommendation from the engine rebuilder who said take it easy for first 100 miles. Top gear is waste of time at the moment as engine has not got enough power to drive top gear. However there is a local company that can test the whole igntion system components so I’ll check this route out 

    Power

    in Classics

    Posted

    The bike is a DT125  LC 1. At the moment top speed is about 50/55 mph and ‘bogs down’ in top gear on the road. I only rev it to 6 k as still running in. The engine has been fully rebuilt so compression is okay plus seals. I’ve rebuilt the carb and cleaned the fuel supply. Also fitted new reed valves. New sprockets are the correct ratios. The front expansion chamber may be partially carboned up which I can check. The bike was running fine when it was last on the road 20 yrs ago. I read that the igntion coil can degrade with time although the resistance values are in range ?

    Power

    in Classics

    Posted

    My newly restored Dt 125 LC 1 is down on power ie not pulling fully in top gear. I’m going through the list of possible causes. One could be a weakened spark. I’ve been told that the  igntion coil (flywheel) can degrade with age ? I know the compression/ fuelling/ sprocket ratios are okay. I will clean the front exhaust expansion chamber but it does not seem blocked

    Spring

    in Classics

    Posted

    Does anyone know where to find out the rear spring, suspension rate specifications. The rear Mono shock spring on my 1985 DT125 LC1 is to soft for my body weight. I've spoken to some UK spring suppliers but they all require the specific spring rate in addition to dimensions etc. At the moment it seems that normal spring was designed for a carry weight of 75 / 80 Kgs but this is as far as Ive got ?

     

    Jet

    in Classics

    Posted

    My carb is a VM 24 ss or Yamaka code (10 V00). The jet neck diameter (top) is narrower than the jet bottom diameter. I would presume that it needs to be driven down rather than up ?

    Jet

    in Classics

    Posted

    Does anyone know the correct method for removing the needle Jet from a Mikuni 24ss carb as fitted to Yamaha DT125 LC 1. The Haynes manual shows that it drops out through the bottom some  web sites say it should be punched out through the top ? 

    Tank

    in Classics

    Posted

    I dare say this been covered many times before but what is the best route to take when cleaning rust from old tanks. Looking at some diy options, Viniger, electroylisis, lining products seem to be popular ? 

    Rust

    in Classics

    Posted

    I was told to keep as much if the original bits as possible although there are not that a great quantity involved. Another diy method is to heat the metal up until its "cherry red" then immerse in old engine oil. Will look at a2a4.com 

    Rust

    in Classics

    Posted

    What is the best way to refurb rusty nuts and bolts. I've seen vinegar, or a spin in in a rock tumbler then paint. Another is to give everything to a company that can clean and zinc coat ? 

    Label

    in Classics

    Posted

    Thanks for all the info. I've found a company up in Mansfield that re produce these Headstock labels. The company I'm using for the Powder coat have reassured me regarding any punched markings on the frame.

×
×
  • Create New...