Depends on what you are doing, red bike had nos clock set at zero, photo of originals at 30k for anyone interested to see. Irrelevant as all bearings and cycle parts replaced and engine fully rebuilt. Current resto has low mileage (350 ish) mileage clock fitted reset to zero, more new parts than old so far, frame is original though! Older bikes mileage doesn't count as much as condition and history.

Change the spark plug anyway. Low cost item and can then be ruled our completely

On newer bikes the money is in parts, broken down it's profitable. Older popular bikes like the dt are the same.

@NINJA trying for new to be honest, had some s/h bits already that are below what I wanted. My reasoning being if it's new as specified it can't be wrong, too fussy that's my problem!

Tried yamaha UK customer services and last one listed as sold in 2013!. Did order aftermarket kit for tzr from Wemoto that lists needle jet one digit off dt one, still waiting for that 1 week on. Will keep looking but only hope seems to be picking up nos one on eBay eventually, or complete new carb from csmnl for lots of dosh.

I would be interested in 2, ta

Have ordered the jet needle I need 3 times now (fowlers, csmnl, yamaha France) and each time after a few days have elapsed receive a message saying not available and refund issued (all advertising for sale). Tried Allen's with no joy and only option is aftermarket one for TZR125 same era, one digit off correct part no compatibility. Any suggestions? Mikuni round slide btw.

@NINJA
Thanks for that, read both and still undecided
Don't find the suspension on the red bike wanting TBH, ordered new seals and bushes Inc oil. Probably stick with the originals and change later if I feel I have to.

Also toying with idea of fitting progressive fork springs, anyone tried them with a dt? Did fit a set years ago to a 600 and made a big improvement to that, but chalk and cheese really?

@declan said in 1988 bike:

@oldman how’d you get on? How much play do you allow on your linkage
Swingarm bearings replaced and relay arm bearings all cleaned and regreased, pivot bushes excellent on swingarm no3 so no play in it at all, 3rd shock was also good both ends with no play and good compression damping. Put together yesterday and happy with assembly, started front forks today, overfilled and smelt like pond water