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jimmyjam1358
Scoot Newb

Posts: 1

New Member Aug 24, 2015 14:09:49 GMT -5

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Post by jimmyjam1358 on Aug 24, 2015 14:09:49 GMT -5

I have been a 49cc guy for a couple of years now, I have a T3 with a couple of upgrades, recently changed to a 23mm carb ran great, good throttle response but had some issues and replaced the fuel pump, now having issues at over 30mph of missing and no power. I did install a K&N Filter any suggestions, have installed a Trail Tech Vapor and cant seem to get over 7300 RPM as well. Thanks

derbiman Scoot Pro Posts: 1,610 Location: Thurmont,Md	New Member Aug 24, 2015 14:33:06 GMT -5 katastroff likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by derbiman on Aug 24, 2015 14:33:06 GMT -5 23mm carb? Did you upjet with the open air filter?
	1987 Derbi DS 50 (70 Metrakit,zen pipe,16:16 SHA,5000 rpm springs, 2.5 gram weights) 1999 Derbi Manhattan (70 Malossi sport kit, 19 PHBG,Leovince zx) 2001 Derbi Atlantis ( Malossi multivar variator ,Leovince SP3) 1998 Derbi Hunter (bone stock)

scooterpimp Scoot Master! Still No Future Posts: 5,802 Location: Delaware	New Member Aug 24, 2015 19:47:23 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by scooterpimp on Aug 24, 2015 19:47:23 GMT -5

katastroff Scootaholic! Posts: 2,606 Location: Montreal Qc	New Member Aug 24, 2015 20:20:49 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by katastroff on Aug 24, 2015 20:20:49 GMT -5
	Dont believe everything you read on the net, especially if i posted it.

birdman Scoot Pro Posts: 1,903 Location: East Bay, CA	New Member Aug 25, 2015 4:17:24 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by birdman on Aug 25, 2015 4:17:24 GMT -5 Sounds like its lean to me.
	1972 Vespa Rally 180 1992 Yamaha Jog 2001 Malaguti F12 Phantom-RC1 1989 Honda Elite SB50 2000 Honda Elite-Corsa, PG short, Naraku int., OKO24, UNI, Polini vari, HiT clutch, 8.4:1 1990 Honda NS50F-CF Posh cdi 2014 Yamaha FZ-09 2016 Kawasaki Versys 650LT 2000 Harley-Davidson Sportster XL1200S

aeroxbud Scoot Legend! Posts: 14,311 Location: Portsmouth U.K.	New Member Aug 25, 2015 4:28:00 GMT -5 derbiman and birdman like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by aeroxbud on Aug 25, 2015 4:28:00 GMT -5 welcome to the forum Jimmy. cant you put the standard filter back on and see if it makes a difference.
	Yamaha Aerox NS50 2016 project Yamaha Aerox NS50 2016 Piaggio Typhoon 2019: Great scooter, poorly built (sold) Yamaha Slider 2002: The problem child (sold) Yamaha BWS NG: The Family affair (son now owns) Yamaha Aerox YQ50 2008: The fast one (sold) Yamaha Jog RR 2004: The first one (sold) Mrs Bud 10/06/22 you are not going to pull that engine apart and put lots of new bits in it, are you?

jimmyjam358
Scoot Member

Posts: 39

Location: Noblesville, IN

New Member Aug 25, 2015 13:52:47 GMT -5

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Post by jimmyjam358 on Aug 25, 2015 13:52:47 GMT -5

I did, main jet is a 100 really light variators for high rpm, no air filter runs fast 44 mph, working on a better setup now, the k & n filter is just a little big for where it mounts, had to run the cable to the carb upside down if you will. Cant seem to find a hose that will work to relocate the filter. Thanks for the replies, and no stock air box has been dismantled tried to scavenge parts off to move the air filter away from motor.

jimmyjam358 Scoot Member Posts: 39 Location: Noblesville, IN	New Member Aug 25, 2015 13:53:32 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jimmyjam358 on Aug 25, 2015 13:53:32 GMT -5 Thinking of going with an electric fuel pump have read a couple of places that could be my issue with running at high rpm all the time?

jimmyjam358 Scoot Member Posts: 39 Location: Noblesville, IN	New Member Aug 25, 2015 15:51:49 GMT -5 aeroxbud likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jimmyjam358 on Aug 25, 2015 15:51:49 GMT -5 Okay fix was pretty easy a 1.5in elbow and a 2in rubber coupler ha, had the fastest ride on the bike ever, ran out of road but 44.7 mph woohoo was a blast.

90GTVert
Administrator

Posts: 41,618

Location: Preston, MD

New Member Aug 25, 2015 16:05:25 GMT -5 scooterpimp likes this

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Post by 90GTVert on Aug 25, 2015 16:05:25 GMT -5

The electric pump could be more trouble than it's worth because the electrical systems don't exactly have a lot of headroom on these things. If you want a better pump than stock, try a Mikuni. They supply bigger engines without issue.

Brent
Life is better at high RPM.

jimmyjam358 Scoot Member Posts: 39 Location: Noblesville, IN	New Member Aug 25, 2015 16:15:33 GMT -5 via Tapatalk Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jimmyjam358 on Aug 25, 2015 16:15:33 GMT -5 Thanks will look into that this week

jimmyjam358 Scoot Member Posts: 39 Location: Noblesville, IN	New Member Aug 25, 2015 16:40:48 GMT -5 via Tapatalk 90GTVert and aeroxbud like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jimmyjam358 on Aug 25, 2015 16:40:48 GMT -5 Maybe I will apply for the speed list too, hmmm

scooterpimp Scoot Master! Still No Future Posts: 5,802 Location: Delaware	New Member Aug 28, 2015 18:04:29 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by scooterpimp on Aug 28, 2015 18:04:29 GMT -5 Ditto on the mikuni pump, ruck clone starts , idles etc. Like it was injected after mikuni was used.