Messages

1

Spaniards (Bultaco, Ossa, Montesa etc) / Re: 1973 Pursang front Guard .

« on: September 14, 2019, 05:46:35 am »

Have you tried Peter (Bultaco Parts Australia). You'll find him easy enough on the web. He had both last time I was looking

2

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 Frontera 214 38mm Amal carburettor

« on: December 08, 2018, 06:08:58 am »

Mk 11 production was 77-78, then they did a Mk12 in 79. Proto type Mk 15, but that never went to the production line

3

Tech Talk / Re: Fox Air Shox Parts

« on: January 22, 2018, 03:07:15 pm »

I have been getting parts from these guys.
Store: www.EvolutionSuspensionProducts.com
Personal: www.ThorLawson.com

4

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 Frontera 214 38mm Amal carburettor

« on: January 06, 2018, 07:22:19 am »

No. Just using Castrol TTS. The R30 wouldn't mix with avgas unless acetone was added so I went with the TTS. Mixes easily and keeps between meetings.

5

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 Frontera 214 38mm Amal carburettor

« on: January 04, 2018, 04:31:35 pm »

Forgot to add. That's running on avgas at 20:1 oil ratio. Might be hard to find a good Mk2 40mm carb. They don't make them anymore. I was lucky and came across a NOS body. 38mm carb was used on all except for the American market from what I understand. Stand to be corrected on that though

6

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 Frontera 214 38mm Amal carburettor

« on: January 04, 2018, 06:24:22 am »

Sorry about the delay Peter. Tied up over the break. My 370 MK11 runs a twin plug head and reed valve. Amal 40mm MK2 carb. Main jet 490, needle jet 112, needle 2F1, slide 3, pilot jet 30. It idles and runs clean and hard right through. Plugs are a nice tan colour. Cheers

7

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 Frontera 214 38mm Amal carburettor

« on: December 21, 2017, 04:49:39 am »

Not sure if you have this or not, but the following are listed in the Mk 11 owners manual for the 38mm amal mk2. Main jet 430, Needle jet 109, Needle 2F1 pos 3, slide 2.5, Pilot jet 30. Might be somewhere to start. Saying that, be wary as it states the same jets for the 370 which is a mile too lean!

8

Suzuki / Dr 500 jetting

« on: November 14, 2017, 07:30:25 pm »

I am going to fit a 38mm mikuni Vm or Tm to the DR500. Does anyone have an idea of the main and needle jets plus needle sizes that would be in the ball park?

9

eBay Finds / Re: Bultaco TSS 360 on Trade Me

« on: June 17, 2017, 06:33:53 pm »

I'm wondering if Ginger Molloy is having a clean out?

10

eBay Finds / Re: Bultaco TSS 360 on Trade Me

« on: June 17, 2017, 07:20:23 am »

http://www.mossgreen-webbs.co.nz/m/view-auctions/catalog/id/73/

11

eBay Finds / Bultaco TSS 360 on Trade Me

« on: June 17, 2017, 07:14:20 am »

http://www.trademe.co.nz/motors/motorbikes/motorbikes/classic-vintage/auction-1350043939.htm

12

Wanted / Bultaco Mk5 Femsatronic coil

« on: June 05, 2017, 04:38:27 pm »

Hi there, does anyone have a spare a femsatronic coil, ELC 1-4 in working condition they would like to sell? Please contact Tim. Thanks

13

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 370 jetting

« on: April 15, 2017, 06:26:20 pm »

No. NOS carb body.  Slide and jets and needle from Burlen UK

14

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 370 jetting

« on: April 14, 2017, 05:41:23 am »

Have tried 3, 3.5 and settled on 4. Am I right in thinking that 1/8 to a 1/3 throttle is governed by the needle jet size as the needle taper wouldn't have raised into the jet by that stage?

15

Spaniards (Bultaco, Ossa, Montesa etc) / Re: Bultaco Mk11 370 jetting

« on: April 13, 2017, 03:57:00 pm »

Tried a 30 but had to screw the air into only about a quarter of a turn left. 35 idles good at about a 1 and1/4. Responds cleanly on throttle