1988 bike

[oldman]

@NINJA not sure as cases blasted at same time, estimate around £70, does look good though

[NINJA]

@oldman That's not actually too bad for a quality job.

[oldman]

Progress today, engine in, clocks on and small jobs, looks a bit like a bike now

Pivot bearing sleeve ,bushes worn also, spare swingarm has been soaking in diesel most of the week, will try and remove bearings tomorrow without swearing, chances poor.

[oldman]

[declan]

@oldman mine are so much worser I’ve seen better condition metal on time team

[oldman]

Today I have been mostly refurbing carb. (Fast show joke, showing my age) came out all right but need to order new needle and tubes to finish, still not removed swing arm bearings, not that I am putting it off or anything!

[NINJA]

@oldman Looking good my friend. :clapping_hands_light_skin_tone:

[Calum]

Old school carburettor

[oldman]

Not easy finding correct needle, no UK source I could find, Wemoto do a aftermarket kit for the tzr (keyster brand) was going to be my only option as closest available, found correct part at csmnl but postage for one part expensive. Had to have it though, original needle deformed at tip. spent this eve fitting oil pump and Water pump, cleaning up carb heater spigots on cylinder head. Found some decent used rad hoses in my box of spares, trying to keep all original.

[oldman]

@NINJA said in 1988 bike:

@oldman Looking good my friend. :clapping_hands_light_skin_tone:

Thank you!

[oldman]

Still haven't done the swingarm bearings though, keeps slipping my mind

[declan]

@oldman wish my linkage bushing would lol it’s holding up the whole project

[oldman]

Cleaned and removed bearings, then noticed gouge in swing arm fork, looks like chain has been rubbing. Only minor really but want perfect finish so on to swingarm no 3, cleaned all the oil and grease off and looks OK, pivot bearing sound but main bearings shot, replacing those anyway. Weather permitting will be outside tomorrow removing my third set of bearings, just call me lucky

[declan]

@oldman damn how many swing arms you got lol half a mind to come and borrow a few

[oldman]

This is the last one I have, if this fails will have to resort to eBay

[declan]

@oldman how’d you get on? How much play do you allow on your linkage

[oldman]

@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

[oldman]

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]

@oldman beautiful

[NINJA]

@oldman Progressive springs are on my phase 2 upgrade wish list for my MX, If I had kept my DTR I would have fitted Wirth progressive springs to it. There are quite a few reviews out there, so a Google search is well worth the effort to be more informed. I found these 2 to be quite illuminating tho;

https://motorbikewriter.com/progressive-linear-springs/

https://www.xt660.com/showthread.php?t=19823

It appears that rider weight and riding style affect the progressive springs more as the forks become compressed. AKA Greater compression increases the stiffness of the forks. Obviously the heavier the rider the more pre-load is placed on the forks, ergo more compression. And if you're an aggressive rider then the same stiffness applies, during the increased bouts of fork compression. The true test would be to ride 2 identical bikes other than standard springs vs progressive springs and then you will have an instant comparison.