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Search: Posts Made By: Steve the Kiwi
Forum: Yamaha TZ, TD, TR and TA Discussion 08-13-2017, 09:09 AM
Replies: 4
Views: 5
Posted By Steve the Kiwi
TZ 250 jetting guide

I was speaking to a chap at a race meeting yesterday and he remarked about a data sheet from Yamaha about jetting/barametric pressure/air temp. Does anybody know of this sheet and if they have one...
Forum: Yamaha TZ, TD, TR and TA Discussion 08-13-2017, 09:05 AM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Smile Engine is now complete! Goes into the frame next...

Engine is now complete! Goes into the frame next week and will soon be ready for starting!
Forum: Yamaha TZ, TD, TR and TA Discussion 06-27-2017, 07:35 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
I got a reply from someone out of the blue via a...

I got a reply from someone out of the blue via a FB account and his reply is this:

"hi there stephen the bronze bushes do sieze up under certian situations ,a lot of people changed to roller...
Forum: Yamaha TZ, TD, TR and TA Discussion 06-19-2017, 04:36 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Sorry for the late replies here as I have been...

Sorry for the late replies here as I have been stuck between a rock and a hard place with the rebuild.

I have now got pistons, rings, pins and clips all from VHM. Had to get the full production run...
Forum: Yamaha TZ, TD, TR and TA Discussion 10-16-2016, 06:33 AM
Replies: 28
Views: 29
Posted By Steve the Kiwi
I have been doing some research on the powervalve...

I have been doing some research on the powervalve for the H model and found the in the assembly there is a v-ring, o-ring and sintered bronze bush. Not a roller bearing as was fitted to what I have....
Forum: For Sale 09-13-2016, 07:29 PM
Replies: 1
Views: 2
Posted By Steve the Kiwi
AS3/TA 125 crankcases

I have cases sitting here which are of no more use to me. These came with my old TA which is now living in Auckland.
Make me an offer and we can work out postage etc. I will post a photo next week...
Forum: Yamaha TZ, TD, TR and TA Discussion 09-10-2016, 02:46 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Old and the new power valve link. Made from 4340...

Old and the new power valve link. Made from 4340 on a CNC.

http://i661.photobucket.com/albums/uu339/z650Steve/TZ250H%20rebuild/DSC00671_zpskhk8kfpz.jpg...
Forum: Yamaha TZ, TD, TR and TA Discussion 07-30-2016, 03:05 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Can someone be as kind as to tell me what parts...

Can someone be as kind as to tell me what parts are in item 11 of the valve fitting set? I know there is the circlip, bearing, a cover. There looks to be an o-ring and a spacer? I have the bearing,...
Forum: Yamaha TZ, TD, TR and TA Discussion 07-24-2016, 11:22 AM
Replies: 28
Views: 29
Posted By Steve the Kiwi
I have emailed them but have had no reply. Do you...

I have emailed them but have had no reply. Do you have a contact there? Thanks.
Forum: Yamaha TZ, TD, TR and TA Discussion 07-24-2016, 11:20 AM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Thanks. I have already drawn them up and have...

Thanks. I have already drawn them up and have started to make them on the CNC at work. I am making them s one piece per cylinder coupling.
Forum: Yamaha TZ, TD, TR and TA Discussion 07-17-2016, 11:39 AM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Hi tzrusty, I have since got a shaft and have...

Hi tzrusty, I have since got a shaft and have started rebuilding. Thanks.

Pistons. I have sourced some from http://www.vhm.nl/?navi=pistons where they are sending information to me prior to me...
Forum: Yamaha TZ, TD, TR and TA Discussion 07-03-2016, 05:51 AM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Thanks. Will look into this on Monday.

Thanks. Will look into this on Monday.
Forum: Yamaha TZ, TD, TR and TA Discussion 07-02-2016, 04:31 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
I have started to rebuild now but I am unable to...

I have started to rebuild now but I am unable to locate these: http://i661.photobucket.com/albums/uu339/z650Steve/DSC00667_zpsxcbeidq8.jpg...
Forum: Yamaha TZ, TD, TR and TA Discussion 06-09-2016, 01:37 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Bad news today, a very careful inspection of the...

Bad news today, a very careful inspection of the cases showed on the lower case next to the water pump mount area, a crack. There has been a 'leg out of bed', so this is away to get addressed. Looks...
Forum: Yamaha TZ, TD, TR and TA Discussion 06-04-2016, 01:49 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Well, it has been an eventful week. Started with...

Well, it has been an eventful week. Started with internet dropping down to a speed slower than dial up due to a crash in the system here in Christchurch. Now sorted.

As for the engine, I found that...
Forum: Yamaha TZ, TD, TR and TA Discussion 05-28-2016, 07:43 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
Thanks for the contacts too!

Thanks for the contacts too!
Forum: Yamaha TZ, TD, TR and TA Discussion 05-28-2016, 07:41 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
The rods, I have gone to Fondseca. I have also...

The rods, I have gone to Fondseca. I have also ordered parts from Megazip. Rods, yes I am ditching. The main shaft in the gearbox has gone through the hardening too so it is no good but I am in a...
Forum: Yamaha TZ, TD, TR and TA Discussion 05-28-2016, 02:22 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
This link will take you to some photos of...

This link will take you to some photos of progress. To date, the engine is right down to every last nut and bolt and I am about to start measuring.
I have ordered from Megazip NZ$2000 worth of parts...
Forum: Yamaha TZ, TD, TR and TA Discussion 05-24-2016, 07:12 PM
Replies: 2
Views: 3
Posted By Steve the Kiwi
Thanks! Will see what I get when I put the meter...

Thanks! Will see what I get when I put the meter on.
Forum: Yamaha TZ, TD, TR and TA Discussion 05-21-2016, 02:26 PM
Replies: 2
Views: 3
Posted By Steve the Kiwi
Ignition resistamce

Can any one supply me with resistance figures for the H/K ignition generator on the crankshaft? 5F7-W8551-10
Also coil resistance? 2X6-82310-10

Thanks.
Forum: Yamaha TZ, TD, TR and TA Discussion 05-21-2016, 02:21 PM
Replies: 1
Views: 2
Posted By Steve the Kiwi
I have sent you a PM.

I have sent you a PM.
Forum: Yamaha TZ, TD, TR and TA Discussion 05-18-2016, 07:25 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
I have the engine in parts now and have found...

I have the engine in parts now and have found some disturbing things.
1. The oil pump filter was blocked with RTV and other junk.
2. Sump plate had aluminium filings sitting in it.
3. Water pump...
Forum: Yamaha TZ, TD, TR and TA Discussion 05-12-2016, 04:29 PM
Replies: 28
Views: 29
Posted By Steve the Kiwi
TZ250 H/K Engine rebuild

I will keep this topic as a diary to the rebuild of the engine, so this will be a long post at the end. I will post pictures via a photo sharing website.

Questions will be asked.

My first is today...
Forum: The bar 05-08-2016, 10:11 AM
Replies: 1
Views: 2
Posted By Steve the Kiwi
Hello from Christchurch New Zealand

Hello all. I'm Steve Maynard-Smith (aka Steve the kiwi) and I have been round bikes for a long time now. I have had many bikes right through to a CBX 1000, two TZ's - a 250 E Harris frame and a 350...
Showing results 1 to 24 of 24

 
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