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Messages - brent j

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1
Honda / Re: Honda MT 125 KO 1974
« on: December 15, 2020, 09:48:02 PM »
My recollections of the MT125 from a long time ago.

Somewhat under powered, good brakes and it handled very well.

Looking at it from now at an older age and less concerned with racing one I think it would make a good vintage trailbike.

Good handling, good brakes and reasonably light. The lack of power probably wouldn't be a problem as you could just hold it open and it's not going to try and kill you or wear you out

2
For Sale / Re: Suzuki RL250 parts for sale
« on: November 25, 2020, 07:26:14 PM »
You have two!

3
Suzuki / Re: Suzuki still selling new TS185's!!!!!
« on: July 11, 2020, 07:12:31 PM »
Each country should have a TS185 race class, you can only remove bits & rejet. Bring racing back to low cost.

Careful John, you'll start another "Do you Moto100" thread.

4
Tech Talk / Re: Suzuki RL250 lower fork offset
« on: March 06, 2020, 04:06:27 PM »
I figured seeing your doing so much to the frame you would be able to run a straight edge down the headstock and a find that magic mark in space of where to measure from.

From a little investigation it seams the tolerances or subsequent "usage modifications" on the frame change that head angle a bit.  Ive read one owner recording three different measurements from different machines. with variance of 3/4 " from axle to Fr engine mount. Good luck with the build.

The way Suzuki put these frames together there's no accurate way of measuring the frame, there's a weld seam just where you'd normally measure. I think I read about the three different frame/steering head angles on the trials forum. A guy had and modified the head angle of three frames. I've kept the same steering head angle but shortened the frame to move the weight forward then lengthened the swingarm to get the wheelbase back. I am copying what someone else has done and apparently it is very successful. I'm looking forward to finding out!

5
Tech Talk / Re: Suzuki RL250 lower fork offset
« on: March 03, 2020, 10:55:49 PM »
I'm on the bludge again.
To try and work out if the forks on my RL are useable I need to try and find the offset from the centreline of the forks to the centre line of the axle. Just a couple of mm makes a very big difference in how the bike handles and turns. I figure I have a few options
1 If someone can measure the offset very accurately, and it's not easy
2 Someone can loan me a lower fork leg so I can measure it. Happy to pay post both ways (obviously) and even a cash deposit
3 I bite the bullet and buy a set of forks

Thanks
Brent
I have a Beamish RL250, early silver engine type- so should have same forks
happy to try and measure offset , but haven't long assembled the forks , so would rather not dismantle again to measure
how would you recomend measuring offset of assembled fork ?

Thanks djr but getting a measurement usually means pulling at least one fork leg off.

My method is to put the forks on the bed of a milling machine (or accurate flat surface) and bolt them down on parallel spacers. This way I can get an accurate measurement from the fork leg to the table and axle centre to the table. I can also put the triple clamps on and measure from the steering tube to the table and/or fork leg. Plus there's a bit of adding and/subtracting tube/forkleg/axle diameters.
 

6
Tech Talk / Re: Suzuki RL250 lower fork offset
« on: March 03, 2020, 10:47:22 PM »
http://www.rl250.com/rl250_specifications.htm

teering

Steering Angle                                    60º                           60º (right and left)                                60º (right and left)                             60º (right and left)

Turning Radius                            64 in (1,630mm)                     53 ft (1.63 m)                                      5.3 ft (1.63 m)                                  5.3 ft (1.63 m)

Trail                                                   x                                 3.0 in (76mm)                                      3.0 in (76mm)                                   3.0 in (76mm)

Caster                                                x                                          63º                                                    63º                                                   63º

Thanks for that Pokey, I can put the rake, trail and measured wheel diameter in the trail calculation program I have and that will give me the total offset.
Suzuki (and it seems most trials bikes) have the steering tube at a different angle to the fork legs so it's not really possible to measure the offset at the triple clamps.
BUT, Having the full offset figure (from the numbers you have supplied) means I think I can bolt the entire fork assembly onto the table on the mill at work and get an accurate offset measurement for what I have.

7
Tech Talk / Suzuki RL250 lower fork offset
« on: March 01, 2020, 11:37:36 AM »
I'm on the bludge again.
To try and work out if the forks on my RL are useable I need to try and find the offset from the centreline of the forks to the centre line of the axle. Just a couple of mm makes a very big difference in how the bike handles and turns. I figure I have a few options
1 If someone can measure the offset very accurately, and it's not easy
2 Someone can loan me a lower fork leg so I can measure it. Happy to pay post both ways (obviously) and even a cash deposit
3 I bite the bullet and buy a set of forks

Thanks
Brent

8
Suzuki / Re: help identifying forks
« on: March 01, 2020, 11:35:00 AM »
TS250ER are 36mm so its not those.

They are either 79 TS250N or 82-85ish DR250S /SP250 USA


Suzuki still had the lower fender mount holes even if the bike had no low fender in Australia or USA for example. It was usually left in there because markets like UK and Germany required/wanted low mount fenders.

https://www.ebay.com/itm/Front-Suspension-Forks-35mm-for-Suzuki-DR250SF-DR-250-SF-1985ish/181527122130?hash=item2a43dc10d2%3Ag%3AIfwAAOSwY%7ElZ5vD%7E&LH_ItemCondition=4

cant find any 79 TS250 forks on ebay for comparison

Thanks Leith,
They look exactly like mine but the only exploded diagrams I can find are so indistinct they can't be read or they show no bushes.
I'm trying to find the part numbers for the bushes as they forks should be smoother than non bushed type
I'm also trying to find out the offset of RL fork lowers so I can compare them with the forks I have

9
Suzuki / help identifying forks
« on: February 29, 2020, 07:35:50 PM »

10
Vinduro / Rides in QLD, NSW
« on: February 18, 2020, 03:36:17 PM »
I’m hoping to head to Wagga in the next few months, Mar, April, May.

I’ll be driving from Darwin via QLD-NSW then back the same way.

I’d like to put together a list of events so I can work out what and if I can attend some of them.
I’m looking for vintage trail rides, vintage enduros and/or organised trail rides for modern bikes. I’m looking at bringing my Suzuki PE250B and my KTM Freeride.
The ultimate would be a two day event on a weekend and another two weeks later so I can ride, see family, ride again and go home.

Thanks

Brent

11
Tech Talk / Re: Yamaha twin leading front brake adjustment?
« on: November 02, 2019, 06:14:46 PM »
another trick is to line the brake drum with emery paper and run the brakes around pulling the lever to grind the shoes into the hub shape. works for any brake type. the hard bit is if you have new shoes, you cant get them in with emery paper lining the drum.

Has anyone actually done this emery paper in the drum idea? The shoe radius would be incorrect if you could get it all in place?

Another method is to turn the backing plate and shoes between centres. Using a bit of all thread, nuts and something to duplicate the cable end you set up so that the shoes are at the braking-hard point in the wheel, release and put in the lathe and reset. With just friction drive between the chuck center and the tail stock center at about 100 rpm the shoes will cut true to the correct drum radius.

I do similar but set the axle up in the four jaw chuck. Mount up the backing plate and set the tool half the diameter of the drum from centre. Same way to open the shoes up till I get about 80% clean up. Works really well on TLS set ups and is even better if you can get oversize linings

12
General Discussion / When it's too good to be true
« on: September 21, 2019, 05:19:19 PM »
I've bought a bit of bike gear online from what seems to be clearing houses and got some really good deals.

However the last one did seem to be taking things to the limit but I figured what the hell, I've done well so far so I'll try this one.

Bad move. I haven't lost much but it's still annoying.

I found all the reviews online after I'd paid $110.

DON'T BUY FROM HERE.

http://www.cebecigrandotel.com/

13
General Discussion / Re: SUOMY helmets
« on: September 21, 2019, 05:15:08 PM »
Thanks Hoony, I've been in touch

Cheers

Brent

14
General Discussion / SUOMY helmets
« on: September 21, 2019, 10:49:12 AM »
Does anyone know who is stocking/selling SUOMY helmets?
When I as QLD Offroad tires

I want to replace my current helmet and would kike to get another SUOMY if possible

Thanks

Brent

15
Vinduro / Vinduro/Vintage trail rides in North Queensland
« on: July 10, 2019, 09:58:25 PM »
Hi all,

Are there any Vinduro or Vintage trail rides in North Queensland this year?

Cheers

Brent

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