Messages

1

British (BSA, Greeves, Triumph etc) / Sprite 500, checking engine oil level

« on: July 19, 2015, 04:57:54 am »

Hi all, Sprite with a Triumph 500 engine, oil-in-frame. No dipstick on the screwcap for the filler, can't see any oil when I peer in with the engine running, can't find any oil with my pinky. Cable tie (zip tie) tells me there is oil in the frame, oil is definitely reaching the head (loosened oil pipe fitting to rocker box with engine running, oil oozing through), but do I have enough oil?

Suggestions please!

2

British (BSA, Greeves, Triumph etc) / Re: Sprite 500, rear tyre size

« on: July 19, 2015, 04:47:30 am »

You're 100% right Tony, no discernible reduction in width. It appears that most Brit pre65 events disregard the max width limit of 4.5". I might have a go at modifying the swinging arm by 10mm to give some clearance. I've found some trail bike tyres that fit, but they'll be hopeless on a muddy MX track.

3

British (BSA, Greeves, Triumph etc) / Re: Sprite 500, rear tyre size

« on: May 05, 2015, 10:35:36 pm »

Thanks for the excellent and quick replies.

The pre-65 rule book (UK) states:

26.5 Any motocross tyre may be fitted max 4.5" tread width.

so it is likely that my rear tyre is larger than original. I've checked the alignment of the rear wheel, it sits at an angle to the swinging arm, pointing slightly away from the line of the chain. So if I align the rear wheel correctly to the swinging arm then it will increase the likelihood of the tyre hitting the chain. But perhaps the swinging arm is distorted?! I'll need to spend a bit of time with tight lines and a tape measure.

The tyre is a Michelin and it measures between 122mm and 123mm at the widest point, although it is pumped up to 25PSI, which is more than I used to run many years ago. I'll drop it 15 PSI and recheck.

4

British (BSA, Greeves, Triumph etc) / Sprite 500, rear tyre size

« on: April 29, 2015, 09:27:57 pm »

Hi all

The rear tyre on my Sprite 500 (Triumph engine) rubs the chain. I'll need to check alignment, the tyre is 120 90 18, does this size sound right?

5

British (BSA, Greeves, Triumph etc) / Re: Sprite scrambler, location of frame number?

« on: April 29, 2015, 09:25:11 pm »

No number found, and I don't want to take any more paint off!

6

British (BSA, Greeves, Triumph etc) / Re: Sprite

« on: March 20, 2015, 08:34:36 pm »

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cheers Firko here's a couple back at ya 

Hi VMX247
I'm ploughing my way through this thread, your scans make for interesting reading, could you please let me know what the book is,

7

British (BSA, Greeves, Triumph etc) / Re: Sprite scrambler, location of frame number?

« on: March 17, 2015, 04:26:22 am »

Sprite Fastback frame numbers stamped  under the old paint , very light stamp on the head stem .

Thanks very much VMX60! I'll get the wirewool out and report back.

8

British (BSA, Greeves, Triumph etc) / Sprite scrambler, location of frame number?

« on: March 15, 2015, 11:32:47 pm »

Hi all

Just bought a Sprite scrambler with a Triumph 500 engine. I'm considering registering it for road use in the UK, but to start that ball rolling I need the frame number. I've looked in the likely places (headstock, front downtubes) can't see anything obvious. Any suggestions regarding the likely location of the frame number would be appreciated!

9

Introductions / Greetings from the UK

« on: March 15, 2015, 11:25:34 pm »

Hi All
Rode an AJS in the late 1970s, then a succession of Japanese bikes, have just purchased a Sprite scrambler with a Triumph 500 engine.