Cozza's PW 80 mutant thingy

[cozza123]

Yeah tht spring will be far too heavy.. 800lbs i think they are..
You,d need around 350-500lbs

I was thinking that Sean,Thanks for the info

 

[THUMPINOZ]

Contact DHZ_XR8cing, He may have a shock you can buy?

Mini Dirt Bikes & Pit Bikes Forum - View Profile: DHZ_XR8cing

 

[cozza123]

DNM MST-BAG 350LBS Spring Shock Remote Reservoir

How about that one? 10mm longer the stock

 

[THUMPINOZ]

True that, that style shock setting being more horizontal than vertical will take a lower spring weight.

Wouldnt that be the opposite? With that type of swingarm there is less leverage so a heavier spring would be needed?

 

[cozza123]

The shock I've got in it at the moment is way too hard and it's cheap china one i had laying around

See in the pics

 

[THUMPINOZ]

Just need to try a different shock I spose & see how it goes?

With the swingarm pivot back a bit from the sprocket it may wear the chain slider on the swingarm if you lengthen the shock & lift the back up too much, The chain will be wanting to wear into the swingarm
Position the swingarm roughly where you want it, Measure via the shock length, Then run a piece of string or straight edge? from the top of the front sprocket to the rear sprocket & make sure the swingarm pivot point is not in the way? You may need a shorter shock?
There is plenty of lighter rate shocks available in shorter lengths

How long is your shock now?

 

[cozza123]

That shock is like 265-270,Sits way too low,I only put it in there for the pics

 

[THUMPINOZ]

Is that bolt hole to bolt hole (center) or total length?

You should get away with a 280mm shock, I thought maybe it would be 250mm, Hard to see & guesstamate

 

[cozza123]

yep hole to hole,Stock length is 270mm,Need buy and mount a chain guide for it too,As they didn't come with one stock

 

[THUMPINOZ]

I think this is it?

A good site for all ya jappa parts too, Number 3?
2005 Yamaha PW80 OEM Rear Arm Suspension Parts | MotoSport

OEM 3r0-22151-00-00 Parts for 3r0-22151-00-00 Dirt Bikes | MotoSport

YAMAHA PW 80 SWINGARM SEAL GUARD 3R0-22151-00-00 | eBay

 

[cozza123]

Thanks for the links dude

 

[cozza123]

Will be wielded up next week hopefully

 

[my67xr]

how's the PW80 mutant going?

have you considered using a riser on the rear shock?
i made one for a mates sons PW80, his was sitting as low as your bike sits now.
the 50mm riser lifted the rear about 80mm
here is a pic of it raised

 

[Liveto_ride]

Nice kick starter, where did you buy that?