Messages

1

Yamaha / Re: HELP! 78 yz250 kicker sprocket grinding inside of case

« on: November 10, 2014, 11:09:43 am »

Thanks overthehill that gives me a few more things to go on.

Anyone else experienced this on their yz?

2

Yamaha / Re: HELP! 78 yz250 kicker sprocket grinding inside of case

« on: November 09, 2014, 09:10:27 pm »

Thanks guys, I'll take another look at it and make sure it's all seated properly and in proper order

3

Yamaha / HELP! 78 yz250 kicker sprocket grinding inside of case

« on: November 09, 2014, 07:31:41 pm »

Hi all,

I had my 78 yz250 out at the sunday slide last week for its first proper ride now that I thought it was sorted.  I pulled in a after a few laps to pull the plug and have a good look over the bike to check the tune etc. I noticed a grinding noise once I had my helmet off and killed it fearing it was the crank bearing.
I finally got a chance to properly go over the bike this afternoon and surprisingly everything seemed really good and clean to the point where it appears to have had a full rebuild not too long ago or the possibly the easiest life an old dirt bike has ever had...

What I did find was that the sprocket on the kicker shaft had made contact with the inside of the case. I took the kicker assembly out completely, put the cover back on and oil back in then bump started it in the drive way. The noise was gone and I guess confirmed that the sprocket was the source.

The problem is that the kicker shaft shows no signs of wear at least from what a novice can see) nor do any of the other components to it or where the shaft sits in the case.

Is there something I'm missing? Is this a known problem? Any help or advice would greatly apreciated!
Cheers - Rob

4

Wanted / Re: Stator or stator coils for 1978 yz250

« on: September 20, 2014, 07:32:23 am »

Hi Lozza, where are you located mate? Any idea of what bikes any of the parts are off?

5

Wanted / Re: Stator or stator coils for 1978 yz250

« on: September 19, 2014, 08:54:18 pm »

Hey Tony my apologies again, your link and my phone didn't get along for some reason (user error?) but when I used an actual computer you were bang on! Thanks for your help, I'm waiting for them to confirm the parts are in stock.

Tt5 Matt  that was my first choice but I'm still hopeful to be ready to race the weekend after this and I couldn't get it done in time. I've also got my mate's 78 in the shed next to mine to part swap on to trouble shoot and everything else  seemed to work fine... But I agree, if I wasn't being impatient I'd send the whole system off to be sure

6

Wanted / Re: Stator or stator coils for 1978 yz250

« on: September 18, 2014, 09:45:14 am »

Ok I better take another look then! Whoops sorry Tony

7

Wanted / Re: Stator or stator coils for 1978 yz250

« on: September 18, 2014, 09:29:06 am »

Cheers Tony but I'm after the coils that mount onto your stator not an ignition coil. I'll check the site as the may have what I'm after

8

Wanted / Stator or stator coils for 1978 yz250

« on: September 18, 2014, 08:43:09 am »

Hi all,

I believe my stator has called it a day and would like to get the bike back running ASAP  so if anyone has something they'd part with then please let me know.

It looks to have had replacement coils fitted but a couple of US companies that list them now say they are no longer available so alternatively if you guys know of any stores with a suitable replacement then I'm all ears.

Thanks - Rob

9

Introductions / Re: Hi from Sydney

« on: August 27, 2014, 07:20:10 am »

Also Brett I've got some pics of the old girl in action I'll post up as soon as I sort photo bucket

10

Introductions / Re: Hi from Sydney

« on: August 27, 2014, 07:09:54 am »

Hey Brett,

You mean Matt that bought the yz I'm assuming off of you? Yea mate that's me, you headed out this weekend?
I did a practice day on the yz at nepean the other week and that's what got me thinking the Dt might not be enough haha. It's such a fun bike and that power delivery sure keeps you on your toes!

11

Introductions / Re: Hi from Sydney

« on: August 25, 2014, 06:57:40 pm »

Cheers guys.
I've been looking into the pvl's but was hoping for a cheap fix so I can do a day on the bike and decide whether to stick with it. As you pointed out Iain I went for the Dt because I liked the idea of the lower bike plus being a 74 got me into a few classes so more riding time!

12

Introductions / Hi from Sydney

« on: August 23, 2014, 04:22:31 pm »

Hi Everyone,

I guess I should introduce myself. I'm Rob, I live in the inner west of Sydney, I grew up racing mx at blacktown mini bike club and then moved onto Oakdale. Living near the city and juggling racing with high school put an end to riding until I was old enough for a license .

I've recently been trying to get a dt250a ready for dirt track at nepean and running into ignition issues so if any Dt wizards have any tips I'm always happy to learn or if anyone's holding parts even better!

Truth be told though after  last Saturdays practice meet up on my buddy's 78 yz250 I'm not so sure I want to pursue the Dt any longer haha.

Well enough about me  and hopefully I'll get to ride with some of you guys on here soon - Cheers