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Hi everyone, can anyone help...... My bushes are seized in my swing arm, I have a new kit to put in, I just wondered if there is any easy way of getting the old ones out, I've read one or two posts and they sound a right pig to do! Cheers

Ok mate cheers, I was going to use a silver paint so I will just get one which is a close match, thanks

Hi, after a bit of advice please about my bultaco, it's a 159 and it's a 1978 325cc, I'm currently having the engine rebuilt so whilst this is going on I thought I give the frame a respray, it's currently silver, just wondered if this is the proper colour, and if so does anyone know a paint code or a name close to this colour, many thanks

Thanks, that is what I thought about the Con rod, but wasn't sure if the same applied to the crank.... More work!! Thanks for the info

Hi there, I'm after abit of advice about my 1978 bultaco trials bike, it's a 325, it's currently having rebuild at the moment but I'm abit concerned about the crank case bearings, I've took both casings off to expose the clutch side and magneto side and checked to see if there was any play, I found that I can move the crank from side to side but I don't have any up or down play, does this mean my crank case bearings are shot?? Any advice apreciated, cheers

Yes I see what your saying, I will try and track down a puller and take magneto off, I've got a feeling it will need stripping though because I've got top of engine off ready for piston and rebore on barrel, and when I tugged on the weight earlier I could see the crank moving in the engine itself where the Conrod comes up:( ........ More money

Ok thanks for your help, that's what I shall do, I have just come across another problem though!!this evening I went to fit a new primary chain tensioner as wheel had broke off the old one, and while I was there I gave the weight on the crank a tug and there seems to be a very slight bit of play in the whole crank shaft along with a slight knock

I've found my old piston and it's 84.75mm and I right in thinking I can go to an 85mm piston and that's it now, bike is a 159 bultaco 335, and is an 85mm piston easy to get hold of? Any help would be grateful, thanks

Ok thanks Greg,where would be the best possible place to get a piston from? I'm not 100% sure because I do not have the old piston with me at the moment but I think it says 0.75 on the top?? Is the 340 bigger than that? Thanks

Hi, I'm new to here and was just after some advice really, I have a 1978 bultaco 325 trials bike, I've owned this for years and done trials when I was younger, but then it's just been left in the garage due to needing new piston and rings, I've finally pulled my finger out and decided to do it lol, but only to find out the piston was so oversized that I couldn't go any bigger(can't remember numbers off top of my head) so I've managed to get a standard 325 piston for it but now need a cylinder liner, I've got a chap who will line it for me, just wondered if this was possible and if liners were easy to get hold of?! Many thanks Andy