2stroke4stroke Posted November 9, 2012 Report Share Posted November 9, 2012 Is there not likely to be a difference in the disc valve between SWM and Aprilia? Quote Link to comment Share on other sites More sharing options...
b40rt Posted November 10, 2012 Author Report Share Posted November 10, 2012 I don't know - anyone ?? Quote Link to comment Share on other sites More sharing options...
motoswm Posted December 17, 2012 Report Share Posted December 17, 2012 Heres a flywheel that I took from a 240 Armstrong Rotax, this ones been reduced by 50% vertically. Might give it a try to see what difference it makes. Quote Link to comment Share on other sites More sharing options...
b40rt Posted December 17, 2012 Author Report Share Posted December 17, 2012 Zip tye your back mudguard first. Quote Link to comment Share on other sites More sharing options...
b40rt Posted November 6, 2013 Author Report Share Posted November 6, 2013 Resurrection time - just weighted a 240 climber flywheel - 4kg !!! Quote Link to comment Share on other sites More sharing options...
baldilocks Posted November 6, 2013 Report Share Posted November 6, 2013 But is that because there is only weight on the ignition side ? Quote Link to comment Share on other sites More sharing options...
b40rt Posted November 6, 2013 Author Report Share Posted November 6, 2013 Air cooled Aprilias don't have a weight on clutch side either. Quote Link to comment Share on other sites More sharing options...
baldilocks Posted November 26, 2013 Report Share Posted November 26, 2013 Was thinking of trying a lighter flywheel but dont want to do mods I cant reverse. So can I simply remove the weight from the clutch side on a 280 swm ? Quote Link to comment Share on other sites More sharing options...
b40rt Posted November 26, 2013 Author Report Share Posted November 26, 2013 Pretty sure you can, Martin would be the man to confirm. Stevens trials have the proper replacement nut. Do you know how to lock the crankshaft ? Quote Link to comment Share on other sites More sharing options...
baldilocks Posted November 26, 2013 Report Share Posted November 26, 2013 Uh oh are you about to tell me I cant do it with an impact gun. Never had clutch case off yet. Quote Link to comment Share on other sites More sharing options...
motoswm Posted November 27, 2013 Report Share Posted November 27, 2013 Yes, you can run without the counterweight, the early red/white SWM's and the later Aprilia TXRs ran with just a nut. You will need the correct nut, I have a couple here if you want one You dont need a impact gun to remove the weight, just a half inch drive ratchet/bar. Either hold the flywheel, to lock the crank and remove the counterweight (std right hand thread). Or you can lock the crank directly......look between the fins on the crank case, just below the exhaust port, and there is a 13mm hex head bolt. Take this out, poke a clean screwdriver down the hole and it will touch the crank. Slowly rotate the crank, and when it reaches top dead centre there is a hole. If you find a long M8 bolt and screw this in, it will lock up the crank to remove the counter weight or flywheel nut. Also handy, if you need to set the disc valve. Cheers Martin Quote Link to comment Share on other sites More sharing options...
baldilocks Posted December 6, 2013 Report Share Posted December 6, 2013 Counterweight now removed so will try at trial on sunday and report back Quote Link to comment Share on other sites More sharing options...
b40rt Posted December 6, 2013 Author Report Share Posted December 6, 2013 Don't think you will notice a massive difference, you going to Longframlington ? Quote Link to comment Share on other sites More sharing options...
baldilocks Posted December 6, 2013 Report Share Posted December 6, 2013 Yes see you there ? Quote Link to comment Share on other sites More sharing options...
b40rt Posted December 6, 2013 Author Report Share Posted December 6, 2013 Weather permitting Quote Link to comment Share on other sites More sharing options...
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