bally123

Got the Crank seals replaced and the bike seems much better for it! Created a blog just in case your interested....hopefully there's some useful photos included. Thanks for all the help... http://bally-trials.blogspot.com/2011/03/gas-gas-txt-strip-down.html http://bally-trials.blogspot.com/2011/03/engine-rebuild-part-2.html Cheers Bally

Yamxj Its encouraging that you solved similar issues with cranks seals - thanks for the reply. Top end is now apart and no major issues so far, in fact other than a de-coke it looks good to go. Flywheel off tomorrow night then into the casings. Slight issue is GG Uk couldn't get parts out today so will have to wait till Saturday to rebuild it. Gandalf - Yes I hate house work but fortunately I love pulling engines apart! I Will keep you posted.... Cheers Andy

About to pull apart the motor for more in depth investigations. Main issue is a hesitancy at low speed / initial throttle opening + Poor / unstable tick over leading slowly towards a stall without a regular blip of throttle. (when it's warm I notice that putting the choke on helps for a few seconds but of course it soon starts to cough and 4 stroke) I have been through the carb carefully, including increasing the size of the idle jet. Mixture screw does not make much difference past 2 turns out (Less than 2 turns just means it won't idle at all). Overall I happy with the carb. I checked the reeds and they don't sit well against the reed block, a visual gap exists along the tips. However having removed, reversed and refitted with a much better sealing the issues still exist. Either way I will fit new ones. I am thinking this is another indicator of the bikes life up to now I am seriously considering the flywheel seal is not great - again probably gives similar symptoms. So I will aim to fit seals and reeds this weekend, gives me a chance to have a good look inside for any other issues!(and beats doing work round the house!) Questions: 1) Ignition timing; how can I check the current setting is correct (std), are there marks on the casings? 2) Anyone else solved similar issues to that above? 3) Anything about the build I should be aware of? 4) Will I need gentle heat to help split the casings? 5) Would you recommend ordering any common issue parts before I strip it? Any advice no matter how great or small would be greatly appreciated.. Andy