Thanks guys, especially Danny with all that inspiration
I read you might be going back to the original look with the rear end too, the project is never completed! I think maybe its a good idea to strip the motor and renew this stuff, I intend to ride this bike on and off road and dont want to have to strip it again not long after I get it working of course. I had a look and cant find that funny sized bearing online as I assume its a bike specific thing, most gearbox bearings are it seems on most bikes, sigh. I took my RZ bearings to my local bearing place and all he had was a waterpump bearing, the others he just shrugged and said 'bike bits, its always like this... bloody special bearings we cant get {grumble}' hmm...
Ive had a busy week... Ive been helping my friend who is selling me my bike with his parts and bikes. He had several bits and also quite a few whole bikes in bits so we've been building them up so he can sell them on. So whilst i dont have my own MT in my garage as yet (long story involving injury (not me!) and lack of trailer etc) I have now got plenty of experience in these bikes. One bike we managed to get a nice fat spark but nothing we did would make it run or even pop, not even some fuel in the bore, which was a shame as the rest of the motor looked serviceable. Any ideas on that? Anyway we then moved on and just started on the next one and this second bike had an engine without a piston so we swapped it for another whole engine he had but it seems to have a loose flywheel, which as i sit here and type this I think is common as i guess people removed the points when those became harder to find from Honda, unless i read wrongly that Honda stock ran low on those parts? anyway no issue now as they are online from online sellers now which is cool. Luckily I remember that in the parts i found a set of used points so thats good in case that bike does need those, it would be nice to make another runner. I will grab the piston-less engine as a spare for me as its all there apart from the piston/small end etc Ok it will need a rebore of course but are pistons easy enough to get for these bikes? I saw some Wiseco's on ebay but they had no gudgeon pins, is that normal on MT pistons? Every other piston ive ever bought has had the full kit, apart from OEM honda which came with nothing. hmm....
We did come across an oddity late yesterday in the parts, a standard looking exhaust that had been modified.... now fro the ones ive seen there seems to be types of exhausts fitted to the MTs, one has a straight pipe at the end and one has a wider more pronounced end like a small muffler. This was one of the (earlier?) smaller end tube types with no baffle end, but instead it had the end pipe with the baffle cut off and a longer thinner pipe added. The pipe also seems to have been gutted of all its innards (I could see some welding on the backside) and was about half the weight of the standard pipe.So I assume the spark arrestor was removed and maybe some other stuff as well? What do the assembled crowd think? worth trying on my bike? We also found a pipe modified with a cranked over front pipe, like someone had modified it to be used on a later CR engine with the exhaust exit on the left, looked very strange and not ideal for two stroke power.
So a busy few days and lots of fun to have more dirt under my nails, and good to help out a friend of course, but of course even better ive now had a play with these bikes. all good. Hope to have my bike here by next weekend, all being well.
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MT250 with CR250 top end & Bassani pipe... almost fully restored.
See more of my motorbike builds at
my Honda MT250 and Yamaha RD and RZ website, 2Smoked.comIf you like watches, check out my websites:
DeskDivers.com &
PloProf.com
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