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Search: Posts Made By: Bruce Woodrow
Forum: Rotax Max powered by ShopMRPOnline.com 07-27-2011, 07:54 AM
Replies: 12
Views: 14,721
Posted By Bruce Woodrow
Butler, The problem described sounds very...

Butler,

The problem described sounds very much like a PV that is not opening. First, I will assume that the PV has been assembled with the blade the correct way up and the small pressure signal...
Forum: Rotax Max powered by ShopMRPOnline.com 02-17-2011, 09:58 PM
Replies: 1
Views: 4,377
Posted By Bruce Woodrow
Clay, I think it is the 'tire sniffing'...

Clay,

I think it is the 'tire sniffing' device that is used to detect tire dope.

Bruce
Forum: Rotax Max powered by ShopMRPOnline.com 01-09-2011, 10:37 PM
Replies: 9
Views: 7,050
Posted By Bruce Woodrow
Jonny, It is different for all Rotax FR125...

Jonny,

It is different for all Rotax FR125 engines that use a fully operational Dellorto VHSB34 carb. (Minimax, Junior, Senior and DD2). The difference with this engine/carb. combination is that...
Forum: General Discussion 11-07-2010, 10:17 PM
Replies: 2
Views: 6,086
Posted By Bruce Woodrow
Definitely NOT!!! Since it has no external...

Definitely NOT!!!

Since it has no external power source, it will actually act as a restriction to airflow, thus reducing the amount of air getting into the engine and therefore the power too. The...
Forum: Birel & Monza Tech 08-03-2010, 01:03 AM
Replies: 3
Views: 3,075
Posted By Bruce Woodrow
Gene, I did also just notice that in...

Gene,

I did also just notice that in addition to the two different 19mm bore master cylinders, repair kits are sold for 22mm bore master cylinders too.

Bruce
Forum: Birel & Monza Tech 07-26-2010, 08:55 PM
Replies: 3
Views: 3,075
Posted By Bruce Woodrow
It would appear from the Birel Catalog that the...

It would appear from the Birel Catalog that the B-Style caliper has 32mm diameter bores.

There are only 2 master cylinders shown in the catalog, both have 19mm diameter bores.

Bruce
Forum: Rotax Max powered by ShopMRPOnline.com 05-10-2010, 01:13 AM
Replies: 4
Views: 5,247
Posted By Bruce Woodrow
Jean, I think that the number quoted at...

Jean,

I think that the number quoted at 8,700rpm should be a peak torque figure - last one I measured was 20.2 Nm (14.9 ft.lbs) with basically flat torque from about 9,000 to 11,000rpm. In this...
Forum: Birel & Monza Tech 12-10-2009, 08:11 PM
Replies: 2
Views: 2,741
Posted By Bruce Woodrow
130mm (5 inches) wide for Front '4.5' tires and...

130mm (5 inches) wide for Front '4.5' tires and 180mm (7 inches) wide for Rear '6.0' tires.

Bruce
Forum: Rotax Max powered by ShopMRPOnline.com 08-26-2009, 01:07 AM
Replies: 1
Views: 3,895
Posted By Bruce Woodrow
Most likely issue is that the coil isn't...

Most likely issue is that the coil isn't grounded. There should be 1 or 2 short ground wires that connect the coil body to the engine case (which is already properly grounded or the starter wouldn't...
Forum: Birel & Monza Tech 08-17-2009, 08:02 PM
Replies: 6
Views: 5,628
Posted By Bruce Woodrow
The main advantages of ceramic bearings will not...

The main advantages of ceramic bearings will not provide any useful gains in kart axle or wheel hub applications, particularly when cost is part of the equation.

Ceramic bearings do enable higher...
Forum: Racing at MRP/RGR 02-25-2009, 09:48 AM
Replies: 2
Views: 3,045
Posted By Bruce Woodrow
Thank you for the kind words! I will...

Thank you for the kind words!

I will certainly miss MRP and all my good friends there.

Bruce
Forum: Rotax Max powered by ShopMRPOnline.com 02-06-2009, 12:23 PM
Replies: 2
Views: 3,415
Posted By Bruce Woodrow
To get ALL of the water out of the engine, open...

To get ALL of the water out of the engine, open the lower radiator hose joint, remove the radiator pressure cap and then, when you think all the water is drained, tip the engine 90°backwards (toward...
Forum: Birel & Monza Tech 01-29-2009, 11:17 AM
Replies: 5
Views: 3,074
Posted By Bruce Woodrow
For the same cassette design with just a material...

For the same cassette design with just a material change from Al to Mg, the Mg part will be 63% of the weight of the Al part (i.e. a 37% weight saving).

Bruce
Forum: Racing at MRP/RGR 10-06-2008, 03:01 PM
Replies: 17
Views: 6,515
Posted By Bruce Woodrow
When the MyLaps site is working properly the...

When the MyLaps site is working properly the product is excellent. I think that what some do not realize is the amount of extra information that is available when you own your transponder and can...
Forum: Racing at MRP/RGR 09-29-2008, 12:39 PM
Replies: 17
Views: 6,515
Posted By Bruce Woodrow
Sean, I printed off the Race 11 results from...

Sean,

I printed off the Race 11 results from MyLaps a few days ago. They are there but not in the expected order of events - look down the list a little.

Bruce
Forum: Rotax Max powered by ShopMRPOnline.com 09-17-2008, 08:20 AM
Replies: 23
Views: 8,966
Posted By Bruce Woodrow
Thanks to all at MRP for their help and advice...

Thanks to all at MRP for their help and advice while I was under the tent - sorry I couldn't deliver a better result, but who would expect a helmet visor to come off!

It was great to work with...
Forum: Rotax Max powered by ShopMRPOnline.com 08-25-2008, 12:38 PM
Replies: 6
Views: 7,384
Posted By Bruce Woodrow
Bob, In answer to your first question,...

Bob,

In answer to your first question, jetting is really not related to gearing. When the jetting is correct for the weather conditions (air temp., pressure and humidity) it will be correct for...
Forum: Racing at MRP/RGR 07-21-2008, 09:24 AM
Replies: 2
Views: 2,802
Posted By Bruce Woodrow
William, Yes, we use the National gearing,...

William,

Yes, we use the National gearing, as stated in the Rotax Max Challenge Official Rules and Regulations:

13/82

Bruce
Forum: Birel & Monza Racing Kart Discussion 07-14-2008, 11:32 AM
Replies: 5
Views: 3,599
Posted By Bruce Woodrow
Bob, Another thought: Make sure that...

Bob,

Another thought:

Make sure that you are measuring the air temperature in the shade - this will make a big difference.

Bruce
Forum: Birel & Monza Racing Kart Discussion 07-14-2008, 11:13 AM
Replies: 5
Views: 3,599
Posted By Bruce Woodrow
Bob, 152 definitely sounds too lean - I was...

Bob,

152 definitely sounds too lean - I was running 162/clip 2 (K98 needle) and putting in some reasonable times, so this wasn't far off. In Maxjet there is a 'slider' control that needs to be...
Forum: Rotax Max powered by ShopMRPOnline.com 07-09-2008, 02:16 PM
Replies: 5
Views: 6,583
Posted By Bruce Woodrow
William, This is straight from the...

William,

This is straight from the operator's manual:

***********************************
8. Running-in procedure for the engine

Attention: Pay attention to safety advice of the kart...
Forum: Racing at MRP/RGR 06-10-2008, 04:20 PM
Replies: 1
Views: 2,866
Posted By Bruce Woodrow
For Rotax the answer is the same as Chuck's...

For Rotax the answer is the same as Chuck's above:

The Minimax final was completed and points will be allocated in the usual way according to those finishing positions.

All other Rotax classes...
Forum: Rotax Max powered by ShopMRPOnline.com 06-03-2008, 12:27 PM
Replies: 7
Views: 6,149
Posted By Bruce Woodrow
When you drill out the rivets, make sure that you...

When you drill out the rivets, make sure that you don't enlarge the holes. The correct replacement hardware is M4 screws/nuts.

I believe that you are allowed to re-rivet the joint but it is...
Forum: Birel & Monza Tech 05-21-2008, 06:53 PM
Replies: 11
Views: 4,639
Posted By Bruce Woodrow
Here is the link to the Tillett fitting guide: ...

Here is the link to the Tillett fitting guide:

http://www.tillett.co.uk/PDF/Fitting%20Instructions.pdf

Bruce
Forum: Racing at MRP/RGR 04-23-2008, 07:44 AM
Replies: 1
Views: 2,775
Posted By Bruce Woodrow
As Marc said above, I have sent out an...

As Marc said above, I have sent out an introductory letter to Rotax participants. If you didn't receive my e-mail and would like to be added to my e-mail list to receive Rotax information, please let...
Showing results 1 to 25 of 37

 
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