|
Author |
Message |
mr_s81 |
This post is not being displayed .
|
mr_s81 Nova Slayer
Joined: 24 Apr 2008 Karma :
|
Posted: 14:31 - 20 Oct 2009 Post subject: SGX 50 - Poor Mpg |
|
|
I recently bought a Honda SGX 50 moped to get me in and out of work over the winter months. Given that my commute is less than 3 miles each way, I didn't see the point in getting a bigger bike. I also bought it off a work mate at a good price.
Anyway the bike is registered 2001 but hasn't been used a lot over the last few years. It's in good nick and there's only 2500 miles on the clock. The only noticable thing that was wrong with it when I bought it was a rusted exhaust. It was mainly only surface rust, but my preference was to buy a derestricted exhaust for safety as much as anything on the open road - so I bought one of these https://www.hondascooterspares.co.uk/spares/partImage.asp?GPN=GS13260.
During this time I also put a polini speed variator kit on and a honda oversized pulley. All things that were supposed to 'help' with the derestriction process. Didn't bother getting the cdi derestricted or anything like that as I was happy enough that the wee bike did up to 50mph (indicated).
My problem after doing all this is the detrimental impact it's had on fuel consumption. I haven't upjetted the carb (72 jet on there at the mo) as I've been checking the plug and it looks fine. The bike is also running well. There had been a problem with it cutting out when cold when the throttle was closed after a burst of acceleration. To date at least I've got this one sorted by gapping the spark plug properly.
At the minute I'm getting about 40-50mpg. (I get more on my ER6n!) From brimful to the fuel light coming on is about 35 - 40 miles. Hardly impressive given that the thing was bought as an economical way to get to and from work! I've been looking to try and find mpg stats on what I should have been expecting. I was hoping for 80 at least and I came across https://hubpages.com/hub/MPG-Guide-The-Fuel-Economy-Of-250-Top-Selling-Scooters. Now I know my mpg is going to suffer now the restricted exhaust has been fitted, but I didn't think it would have been affected to this extent of 136 to 45mpg??
I should also say that the air / fuel mix screw has to be turned away out for the bike to run at it's best. At one to two turns anticlockwise it appears to bog down and be much too rich. Would the main jet affect this or is it more likely to be the pilot jet.
Anyway, apologies for the essay and noob-like questions. Would be good to get to the bottom of this to establish whether there is something wrong or if 40-50mpg is normal as the wee bike can be quite fun to ride about town
Cheers in anticipation!
Ian |
|
Back to top |
|
You must be logged in to rate posts |
|
|
... |
This post is not being displayed .
|
... Brolly Dolly
Joined: 12 Oct 2009 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Pussy Magnet |
This post is not being displayed .
|
Pussy Magnet Scooby Slapper
Joined: 20 Oct 2009 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
mr_s81 |
This post is not being displayed .
|
mr_s81 Nova Slayer
Joined: 24 Apr 2008 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
mr_s81 |
This post is not being displayed .
|
mr_s81 Nova Slayer
Joined: 24 Apr 2008 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Noxious89123 |
This post is not being displayed .
|
Noxious89123 World Chat Champion
Joined: 10 Jun 2007 Karma :
|
Posted: 22:00 - 20 Oct 2009 Post subject: |
|
|
You'd be better off with a 4 stroke 125. Most are good for 100mpg easily. ____________________
'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi |
|
Back to top |
|
You must be logged in to rate posts |
|
|
mr_s81 |
This post is not being displayed .
|
mr_s81 Nova Slayer
Joined: 24 Apr 2008 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
... |
This post is not being displayed .
|
... Brolly Dolly
Joined: 12 Oct 2009 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Old Thread Alert!
The last post was made 14 years, 241 days ago. Instead of replying here, would creating a new thread be more useful? |
|
|
|