Booster Plug Review and Other Assorted Observations

Whooshka

Fairly faST old guy
Joined
Jan 29, 2017
Messages
949
Location
New Jersey
Bike
2006 ST1300
So I bought the Booster Plug to see what it is all about. One can't have an opinion on something unless one tries it out.

It took literally 30 seconds to install once the tank was up. My home and commuting (rarely done now thanks to COVID) is barely above sea level. I have not tried it here yet. I did install it before a week long ride last week. Most of the riding was at altitude on the BRP, the Carolina's (181, 226 were my favs), Tennessee, Virginia, etc. 90% twistie back roads spent at 3-6K RPM. Any brief stint on a 4 lane was steady 80 MPH. After 2 days with it I removed it to be able to compare.

The Booster did remove a lot of the off idle and low RPM twitch, or throttle snatch. I did notice a little more exhaust pop than without. I also felt the bike as being a little rich, hard to explain but throttle response was "fluffy". There was some soot on the Delkevic tips. Perhaps altitude + Booster = too rich? Gas mileage did drop. With the plug and hard riding i was in the 33-35 MPG range over a full tank of gas. Without the plug in the same conditions I was 37-39.

So that is my 2 cents worth. Will I keep it? Undecided as I have yet to ride it around home.

Other Stuff...

The little wind deflector on top of the windshield is coming off. No need for one on a 1300 with power shield.

The wind deflector kit I bought used was awesome. Not 1 extra degree of heat felt anywhere. Somebody needs to copy and produce these.

Tires. One of my buds with his ST had that weird, uneven tire wear going on. After 2 days it increased dramatically forcing him to go home. His tires looked dangerous to ride on.

Another bud was "bragging" how he had 4800 miles on his Angel ST's on his FJR. 2 days later his tread was even with the wear bars. 200 miles later cord was showing. Prompting us to shorten our day and get him new tires. Teem Motorspots in Franklin NC. took us in at 3:30 on a Friday, hooked him up with tires in stock, and stayed until new rubber was mounted. I cannot relay to you what a great experience it was. Customer service there gets an A+++ from us.

That's it. 5 days, 1100 miles. 2 days of rain. 1 night camping. 4 at a lake house in Lake James, SC. Good times had by all.
 
So I bought the Booster Plug to see what it is all about. One can't have an opinion on something unless one tries it out.

It took literally 30 seconds to install once the tank was up. My home and commuting (rarely done now thanks to COVID) is barely above sea level. I have not tried it here yet. I did install it before a week long ride last week. Most of the riding was at altitude on the BRP, the Carolina's (181, 226 were my favs), Tennessee, Virginia, etc. 90% twistie back roads spent at 3-6K RPM. Any brief stint on a 4 lane was steady 80 MPH. After 2 days with it I removed it to be able to compare.

The Booster did remove a lot of the off idle and low RPM twitch, or throttle snatch. I did notice a little more exhaust pop than without. I also felt the bike as being a little rich, hard to explain but throttle response was "fluffy". There was some soot on the Delkevic tips. Perhaps altitude + Booster = too rich? Gas mileage did drop. With the plug and hard riding i was in the 33-35 MPG range over a full tank of gas. Without the plug in the same conditions I was 37-39.

So that is my 2 cents worth. Will I keep it? Undecided as I have yet to ride it around home.

Other Stuff...

The little wind deflector on top of the windshield is coming off. No need for one on a 1300 with power shield.

The wind deflector kit I bought used was awesome. Not 1 extra degree of heat felt anywhere. Somebody needs to copy and produce these.

Tires. One of my buds with his ST had that weird, uneven tire wear going on. After 2 days it increased dramatically forcing him to go home. His tires looked dangerous to ride on.

Another bud was "bragging" how he had 4800 miles on his Angel ST's on his FJR. 2 days later his tread was even with the wear bars. 200 miles later cord was showing. Prompting us to shorten our day and get him new tires. Teem Motorspots in Franklin NC. took us in at 3:30 on a Friday, hooked him up with tires in stock, and stayed until new rubber was mounted. I cannot relay to you what a great experience it was. Customer service there gets an A+++ from us.

That's it. 5 days, 1100 miles. 2 days of rain. 1 night camping. 4 at a lake house in Lake James, SC. Good times had by all.

Good, honest review... thanks. Looking forward to more evaluating, commuting at home, although it seems that we see the trend with the booster plug. Interested to hear your opinion on driveability over the longer term.
Glad you had a somewhat good trip, other than the rain and tire problems
 
Thanks. It was a great trip! While not preferred, riding in the rain was no biggie. One day visibility was down to about 20-30 feet because of very heavy fog, that was a rough 20 minute stretch. We wanted to camp more but with an uncertain weather forecast most nights we motelled it and stayed at a friends lake house most days.

I get to hang with excellent riders and friends. We do this twice a year unless health issues deter us.
 
The one guaranteed claim about the booster plug is it will lighten your wallet - although that's not a great marketing idea. :)

Thanks for the honest write up and being willing to put your money where your mouth is going.
 
I'm curious if the rich condition is b/c the computer has not "caught up" to the booster plug changes. If I remember corectly the FI computer will compensate the fuel mixture to altitude and atmospheric conditions... I might be wrong.. Time will tell YMMV
m
 
I'm curious if the rich condition is b/c the computer has not "caught up" to the booster plug changes. If I remember corectly the FI computer will compensate the fuel mixture to altitude and atmospheric conditions... I might be wrong.. Time will tell YMMV
m

According to their site the plug only richens the mixture 6%. Supposedly at lower open/closing throttle positions, once there is a steady state throttle the ECU adjusts based on what the O2 sensors are telling it. Which means the ECU will lean the mix out because the plug would have made the exhaust gases rich.

I'm guessing it was running rich because of the thinner air at altitude too. Hey I didn't invent the thing. I just tried it and shared my thoughts. :biggrin:
 
One can't have an opinion on something unless one tries it out.
:rofl1: As if that's stopped most anybody. But the review is appreciated. Have you checked your plugs to see if they showed a richer mixture? Interesting about getting more pop than without the BP. On other bikes I only noticed that in an overly lean condition.

About the wing as a lip- I usually ride looking through the windshield (heresy!) and get no helmet buffeting. Riding just looking over the top of it I get noticeable buffeting and increased wind noise. I'd think a lip could be adjusted to reduce that. This wasn't the case or wasn't an issue for you?

If I remember corectly the FI computer will compensate the fuel mixture to altitude and atmospheric conditions...
I thought as much too. I imagine it might be possible to encounter "natural" circumstances to which it couldn't adapt. Enter the Booster Plug artificially effecting change. It's interesting that it seemed to smooth out low end throttle response.bI'm not considering in getting the BP but actual usage reviews are interesting.
 
About the wing as a lip- I usually ride looking through the windshield (heresy!) and get no helmet buffeting................

I don't like looking thru the windshield, just my preference. I've spent years riding naked sport bikes (ZRX, FZ1) and actually enjoy the wind. Got a quality, quiet helmet and custom fit ear plugs.

BTW no, I have not pulled the plugs yet. Hopefully this weekend.
 
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So that is my 2 cents worth. Will I keep it? Undecided as I have yet to ride it around home.
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And???? I've seen that thread and that post. I personally don't believe the ECU has any Artificial Intelligence that can adjust long term. I do believe it has minimum and maximum parameters that can be reached. I also think that the act of making the mix richer, and the delay between combustion of said rich mixture and the O2 sensor realizing it and sending the signal to the ECU to adjust the mix again... well maybe the BP has already done what it intended to. That's just my opinion based on using it, not having data nor coding logic to do an engineering analysis.

Again, just sharing my impression of it from my actual real world experience with it. Not looking to debate.
 
Have you checked your plugs to see if they showed a richer mixture? Interesting about getting more pop than without the BP. On other bikes I only noticed that in an overly lean condition.

...................It's interesting that it seemed to smooth out low end throttle response.bI'm not considering in getting the BP but actual usage reviews are interesting.

So I pulled the plugs this morning. Apparently I had installed those oh so magical CR9 iridium plugs when I first bought the bike. Anyway here is what they look like. There were even some "wet" spots on them. These plugs sure don't look like they're from a bike that is notorious for running lean. I replaced them with NGK CR8's non iridium. It's idle is much smoother now.

plugs1.jpgplugs2.jpgplugs3.jpg


Didn't get a chance to take it for a spin today. Maybe tomorrow. Then I'll start thinking about putting the BP back in to see what it does at sea level-ish.
 
The boosterplug is not a good choice when you ride on altitudes.
In the Netherlands we have no issues, but the guys who went on holiday to the neighbours with mountains has issues with the boosterplug.
 
Just curious how this story ended ?? CAt'
Funny I just decided to pop in today to see if I could sell off some ST parts I found in a box on the shelf. I sold my ST 3-4 years ago. Before that I had sold the Booster plug to somebody, can't remember who. I think he was liking it if I remember right.
 
Funny I just decided to pop in today to see if I could sell off some ST parts I found in a box on the shelf. I sold my ST 3-4 years ago. Before that I had sold the Booster plug to somebody, can't remember who. I think he was liking it if I remember right.
What did you think of the BP,, as installed on the ST13, Whooshka ??
 
What did you think of the BP,, as installed on the ST13, Whooshka ??
You'd get a better understanding if you read this thread. From the top post...

"So I bought the Booster Plug to see what it is all about. One can't have an opinion on something unless one tries it out.

It took literally 30 seconds to install once the tank was up. My home and commuting (rarely done now thanks to COVID) is barely above sea level. I have not tried it here yet. I did install it before a week long ride last week. Most of the riding was at altitude on the BRP, the Carolina's (181, 226 were my favs), Tennessee, Virginia, etc. 90% twistie back roads spent at 3-6K RPM. Any brief stint on a 4 lane was steady 80 MPH. After 2 days with it I removed it to be able to compare.

The Booster did remove a lot of the off idle and low RPM twitch, or throttle snatch. I did notice a little more exhaust pop than without. I also felt the bike as being a little rich, hard to explain but throttle response was "fluffy". There was some soot on the Delkevic tips. Perhaps altitude + Booster = too rich? Gas mileage did drop. With the plug and hard riding i was in the 33-35 MPG range over a full tank of gas. Without the plug in the same conditions I was 37-39.

So that is my 2 cents worth. Will I keep it? Undecided as I have yet to ride it around home."
 
So that is my 2 cents worth. Will I keep it? Undecided as I have yet to ride it around home."
So you never did re-install the BP for local riding (more sea-level-ish), and after going back to Cr8 plugs ?? Also, I did read about 300+ posts on the BP,,, plus this threads 16 posts, a couple of times,, thx, Lol,, CAt'
 
The only thing the boosterplug does, is lowering the actual temperature reading from the temperature sensor. So the ecu thinks inlet temperature is lower. The mixture is than richer. More fuel. Thats all.
It has is own temp sensor. The reading is outside the airfilter box. Its connect to the original temp connector. So their is nothing special about it.
 
So if I remember correctly I liked the bike better with the BP removed, That's why I sold it. Without it my throttle response was a bit crisper, the snatch never bothered me. You get used to something, make adjustments and adapt.
 
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