Recent content by Brewster

As I've said in other threads - if you make changes to your filter or exhaust run the 15min ecu reset with the original o2 sensor connected and this will get your lambda adjusted to standard. Then reconnect your dongle and enjoy!

I run with a removed lid and have machined the aperture on the filter retainer. There is a limit to how big you can make the aperture as you need to keep strength in the retainer. It did make a slignt difference to performance. To be fair I only ride my bike on dry days and do not blast it with...

This YouTube video is of my bike. Showing the rapid bike easy. The bike has modified air box, K&N filter, cat delete and straight through end can but because I carried out the ecu recalibration before fitting the rapid bike - it doesn't need to be dialed up to large setting to give the best...

I have the Dimsport Rapid bike easy. I like that it is adjustable and the ecu doesn't sus it out. I had the simple resistor type o2 eliminator before (similar to the rott.jpg) and it only gave a benefit for a couple of hundred miles? Before you splash cash on a different one for your bike I...

Cool. 👍

You are correct as such. If the cat is still on the bike then fitting the AFR meter before the cat is recommended. This leads us to something else to consider.... The main reason for modern engines running lean is to make the exhaust gas extra hot which makes the catalytic converter work. The...

In the 2nd half of this video you will see that the Rapid Bike Easy is set quite low to only tweek the mixture. If it is set to the maximum setting then the engine runs way too rich.

To be fair you should only need to have one tuning device or dongle fitted? If you do the ecu reset with standard sensors then the ecu will self tune the fuel ratio to 15 to 1. Which makes the engine run standard in spite of the air filter/box mods. So you only want to tweek the fuel ratio by...

Yip. That's the one. Especially if you have a non-standard air filter, air box mod etc. Doing the reset with the oem O2 sensor connected will set your air mixture to standard. (Around 15 to 1) Then refitting your dongle will give the richness/benefit you are looking for. (Nearer 14 to 1) I have...

Point of note: Don't do an ecu reset with a dongle fitted. Put sensors back to original. Carry out ecu reset. Then refit your dongle.

Sorry for the delay. I have created a video which I hope answers your questions.

People talk about the Svartpilen speedo looking unsightly but what bugs me more is paint waring off the top edge of the heel protector on the exhaust and looking shabby. I have repainted mine several times but have now fitted a 3d printed black plastic garnish strip which seems to be doing a...

There was a factory recall for the clutch slave cylinder see this link. You can check to see if your bike is affected and if it has already been replaced...

Hi, The rapid bike I have is - https://www.dimsport.it/en/rapid-bike/rapid-bike-easy/ There is a specific model for the 701's. You can select your bike on the website. It is an O2 sensor delete. A relatively expensive one, but it is adjustable. The standard O2 sensor on the bike is a narrow...