Lukyboi

Thanks will do

Luke please use the correct section to post. in this instance its the wanted section. non-subscribers won't be able to post there.

I have done it I changed the engine, I faced each challenge that this piece of metal thru at me and I think I came out a better man, I had to get a garage to remove the generator rota at a cost of £100 I had too I did not have the correct tools and set of good pullers that I would have only used once would have been close to a £100 so it made sense to get someone else to do it.I would however suggest that if you have to go to a garage you choose one that specialises in bikes, I went to my local garage who I must admit have some very good mechanics they specialise in high end cars Audi BMW Range Rover and the odd Ferrari but my little 125 engine was out of there safety zone and so they was a little apprehensive to take on the challenge and I had to keep pushing for it to be done, but they got it sorted in the end. I would like to thank Grouch even though he did not give me any direct advice on the challenges I posted he kept me going and gave me hope when I needed it and DT502001 he had some good tips. After I got it all together and checked and double checked the pipes fitting and bolts I turned it over and it started first time not bad for someone who has never really picked up a spanner oops wrench before. Oh and the headless bolts well on the newer engine the starter ring this is the bit that when you engage your starter motor has a ring of offset bearings that grip the big end (crank) drive and so rotate the engine until it starts but here is the clever part as the bearings are off set when the engine starts the starter ring disengages itself from the big end and so does not burn out the starter motor cool what, well this is reversed on the new engine so the Allen bolts are housed inside and on the reverse of the generator rota different on the old one these are visible from the top and so can be undone, so the headless bolts was just the end of the Allen bolts and so did not need drilling out they come off with the rota as one unit again a bike garage would have known this. Well that’s me done now if anyone is having problems I hope this post helps show that if you keep going you will get there in the end and it can be done. And sometimes you may come get some patronising quotes and silly remarks (you know who you are) on this site but there are some good guys that really do want to help. Thanks Lukyboi

Garage did it cost £100 but its done

I cant the garage have got it and are trying to get it off it just seems weird that Yamaha would build an engine that you cant split just dont make sense without partly destroying the rota. I was just concerned that the garage was reading to much into the removel and all that is needed was to get the right pulley. Maybe someone has a manual that they can look at for me I have a manual but its not a Haynes its a Colby I think its some foreign company as I bought the bike from a Polish guy it is in English but very basic and no pictures. Thanks Lukyboi

Hi I have another posting about the problems I am having with my engine exchange but I dont seem to be getting any direct advise I am chating with another member who is great with pratical advise thank you. But need answers to some questions, Do I need to drill out the headless bolts to remove the generator rota my old one had alen key bolts simple removel. I need to change it as i have an older engine without the imisions package. Why is so difficult to just change engines was I stung by the bloke who sold me the engine will it run in my frame and with my electrics. And does anyone know why finding information for the XT125x is so frigin hard does anyone repair them I have found nothing no youtbe video's no tuturials no question and answer pages nothing thought at least you guys might be able to help. I am begining to loose faith in the Yamaha sean Lukyboi

We live in a village well off the beaten track and our drive is really safe i dont normally leave it out it is kept in the garage but I forgot to put away one night, never again. Yeah but why it has never been pulled apart so they have not been rung off the only thing we can think is they are designed to break off so making it impossible or at least very difficult to change. I do hope the garage can get it off

Well the garage has not phoned so it looks like they did not get it apart will have to wait till Monday oh well will let you know how I get on

Yeh but why so difficult my dad said back in the day it was so much easyer this is ageing him I'm sure he was not this grey before we started LOL do you think the garage is right that these bolts with no heads have to be drilled out I looked at the other one and yes it was connected to the starter fly wheel but surely it should not be this hard to change a rota it does not mention drilling it in the manual I have. You say you have had trouble with yours I have also changed the rear brakes too that was easy and I had to have a new battery I left it parked in the drive when it was - 8 out side and the next day it was dead thank god for the kick start. When I bought the bike it had not been kept in a garage it was in fact left in a apartment block carpark he had not rode it for six weeks and it had not been started for a week so we was told !! it fired up first time I took it for a test ride and it was great I then rode it the 60miles home following my dad it never missed a beat and has not until the other when it went bang.

Just been down to the garage and guess what there is a problem the old rota has 3 alan bolts that connects the flywheel to the starter ring so they undid them took the rota off. The new one however has three headless bolts so they have tob drilled out I dont understand it why is so difficult to exchange/replace I am begining to think that I was not ment to get this bike fixed every time a go 1 step forword I stumble 2 back. Are these engines now designed to be scrapped rather than repaired I have searched and searched for any information about the removel of the rota but I cant find anything which makes me think they are or am I the first poor sole to try this repair.

275 + VAT its a nearly new engine that could be why i am having so much trouble the guy i bought it from said it would fit and it does but there are slight diffrences that have got in the way like the generator rota. The guy who sold it to me sells lots of engines and parts thats his business I maybe should not have trusted him but sounded like he knew what he was talking about . I will get this thing going if its the last thing I do if not my dad will take this engine and stuff up his well you now. I am still waiting for the garage to get back to me about the generator rota's I hope that will sort out the starting probs the rest should be easy. Lukyboi

I have got my dad has done a bit in his time worked on engines that is we are just looking to see if it is possible to do things as we tend to think out side of the box and with no experence with yamaha we are hoping you guys would help I am now on my way to the local garage to see if they can get the generetor rotas off wish me luck. Lukyboi

Only 1 F@ing year I think i got the drift after it went bang I should have had it checked but like I said in my introdution I am not that good when it comes to these thing I am trying to fix that now but first I got to get this engine to run so if you can help please do. I have bought some pullys but the dam thing wont come off any ideas Lukyboi

Will do but need to get the new one going first LOL

Hi Grouch The old engine siezed and a coge came through the caseing it was not pretty