betarev50

Just for anyone who has similar running problems the fault was the coil pack. Now it has been replaced the bike runs like new. The bogging wasnt ever to do with the carb it was the coil breaking down until it eventually stopped running at all.

Cheers have repacked exhaust during this process but had no difference. The bike broke down totaly with no spark last week, so ive ordered a new stator and flywheel. Maybe this might help !!

Have heard about running on a mineral oil as well. What sort do you use? Also what gear oil are you using ? Believe it is 800-850ml ! Tried bike tonight it runs fine at low revs now but bogs if you try to open throttle quicky tried mixture scew in both directions but didnt seem to help? Pilot jet is clean !! Any ideas guys

No this is a geared bike just moved up from minitrial. Seemed to have a bit of luck earlier turned mixture screw out from 1 turn to 3 turns and it ran better in garden only but will try properly soon. I was also thinking there could be resistane in gear, The bike has a safety feature so it dosent start in gear and was wondering if that could possible effect anything if faulty?

Have had this beta rev 50 2003 since xmas but not had it running right yet !! The bike ticks over just fine whilst not riding around but as soon as you engage a gears and start riding the revs drop, Generally when on the throttle it runs ok but as soon as my son tries slow sections the bike appears to bog down.Needs blipping to keep from stalling! Checked all the carb setting were standard and clean but no joy. Tried various jetting changes and even another carb still the same problems. mix 70:1 bp5es plug as recommended. Strange things is when back out of gear idle loverly but very fustrating. Anybody out there had similar problems or any ideas please? Cheers Kev