andy m Posted June 29, 2011 Report Share Posted June 29, 2011 On the home straight now Jon, 3 years in the making....... Quote Link to comment Share on other sites More sharing options...
jon v8 Posted June 29, 2011 Author Report Share Posted June 29, 2011 On the home straight now Jon, 3 years in the making....... Well you dont want to rush these things..... I damn near gave up on it,then I thought it would be a big waste.In the morning I'm going to sort out the air filter,I want to make it capable of running in fairly deep water.A couple of weeks back the Aqueduct Classic club ran a single lap trial,28miles in total.A mate rode it and said it was the best trial he had ever ridden and wants us to do a team effort next year - but there are lots of stream sections and bogs,so I want to make sure its not going to drown.Dartmoor should be a good start for it. Quote Link to comment Share on other sites More sharing options...
charliechitlins Posted June 30, 2011 Report Share Posted June 30, 2011 Nice work, Jon! So rare to see a "special" anymore. Quote Link to comment Share on other sites More sharing options...
scorpa250 Posted June 30, 2011 Report Share Posted June 30, 2011 Looking good Jon keep the momentum up and you will be there .What colour is it going to be ?? Scorpa250 Quote Link to comment Share on other sites More sharing options...
jon v8 Posted July 1, 2011 Author Report Share Posted July 1, 2011 Well I'm just going to spray the frame silver for a while till I'm happy with it all and decide its finished.I'm going to leave the tank unpainted but my son is designing some tank stickers for it.Later on I might get the frame and swinging arm powder coated,but I think it looks good with the alloy tank and grey mudguards. Quote Link to comment Share on other sites More sharing options...
jon v8 Posted September 3, 2011 Author Report Share Posted September 3, 2011 Well I have spent the last few days making an all out effort to get it finished so I could ride it at the Dartmoor...... Not going to happen,the TY250 will be going instead. Several things wrong,the main one being that the gearing is such that first is dead right,second is way too tall and third is like a road racing gear.Also the battery I bought for it hasnt got the guts to start it,(Think its just a bad one,but I've had it in stock dry for too long to get warranty on it.) The other bits are all fiddly stuff like the carb being very lean at low revs,which it wasnt when it was in the Serow frame.(Think thats down to the shorter less restrictive exhaust. So what to do ? It would make a REALLY fab green laner - but I want it for trials,anyone know what cogs from other small Yams might fit? Quote Link to comment Share on other sites More sharing options...
andy m Posted September 3, 2011 Report Share Posted September 3, 2011 (edited) Jon, if it's rear sprocket you are after I think they are same as YZ80??dt /xt 125s. May be able to lower gearing that way. Supersprox used to make sprockets any size you want but trouble is you need ratios to be right first?? Edited September 3, 2011 by bo drinker Quote Link to comment Share on other sites More sharing options...
jon v8 Posted September 3, 2011 Author Report Share Posted September 3, 2011 Nah, its not the problem Bo, first is just right - perfect for tight sections.But second is like what you would want third to be.Talon made the rear sprocket for me ages ago,after I worked out how many teeth it would need - its the actual 2nd and 3rd ratios in the gearbox that need changing. Quote Link to comment Share on other sites More sharing options...
copemech Posted September 8, 2011 Report Share Posted September 8, 2011 It looks as though you could drop another tooth or two on the front sprocket. This may take first out of a normally usable range, yet effectively narrow the overall ratio closer to what is needed using the other gears. Sidenote- Think I recently seem someone advertising a lightweight, small Li-ion battery pack for bikes, small and powerful! Quote Link to comment Share on other sites More sharing options...
jon v8 Posted September 8, 2011 Author Report Share Posted September 8, 2011 I dont want to go any lower on the overall gearing because first is spot on,and I dont want to change it.So I think I need to do some research on what other Yams had similar boxes/ratio's.Bit of a pain having to strip it tho.... The battery is just a pain,but I will just have to buy another. Got my mind on the dartmoor now,the TY is sporting a brand new IRC and plenty more stainless nuits bolts etc.Just hope the weather is better. Quote Link to comment Share on other sites More sharing options...
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