stu109

Hi I have a 2013 Beta Evo 4T which has started running very rich. It is fine on tick over but give it some revs and you get a cloud of black smoke. It also uses a lot more fuel than it did. It is not the choke stuck on. I can see the choke effect when I start it. I have cleaned out the carb and lowered the needle one notch but with no effect. Beta UK tells me they cannot supply any carb spares. Before I take the carb off again, any ideas on the possible cause of the problem? Thanks Stuart

Hi I had similar fan issues and thought I had solved the problem a number of times. In the end turned out to be a problem with the fule solenoid. If the issue returns try disconnecting the solenoid.

Took the bike out today and it overheated again. Fan running slowly. Cleaned connections again, no joy. By chance can across this thread - As suggested disconnected the fuel solenoid (which was not working anyway) and fan now back up to speed.

Hi I think this is the same engine as my Evo 4T The water pump shaft has two seals one to stop oil leaking into the coolant and one to keep the coolant in. There is a weep hole that allows coolant to leak out if it gets between the two seals. The shaft is prone to wearing. You can see if it is becuase it gets a groove cut where the seals rub. From memory, I think it is possible to replace the shaft without taking the head off. Stuart

Hi I only had 1.6 volts at the fan. Cleaned all the connectors particularly the one to the regulator. Now all works fine, so must have just had a bad connection. Thanks for all your help.

I have replaced the switch and the fan but the bike is still overheating when it stands running for a while. It looks to me as if the fan is running more slowly that I remember. Can anyone tell me what voltage I should be getting at the fan? Also does anyone know where the earth point is on the loom so that I can check the grounding? Thanks

Hi, thanks for the replies. The 4T switch is different from the 2T. I have removed the circlip, so will give the self tapping screw a go.

Hi Can someone tell me how to remove the thermostatic fan switch on my 2013 beta Evo. It looks as if it justs pushes in and is held in by an O ring, but I cannot get the old one out. Thanks Stuart

Hi The fuel tap solenoid on my Beta Evo 4T has stopped working. On examination one of the wires had broken off just where it joins the solenoid. I will have a go at reconnecting it or maybe buy a replacement. My question is why is this fitted to the 4T? The bike runs fine with the tap set to bypass the solenoid, and you can turn it off manually. Should I just leave it as is? Thanks Stuart

Hi Got it all back together now, what a nightmare! I was looking to buy a new needle. My only experience of this type of CV carb is a worn needle making the bike run rich. I could see the needle was worn, but could not get one straight away from Beta UK as it was an order only. As a compromise I lowered the needle one notch. The black smoke has stopped. Thanks for everyone's help. Stuart

I have taken the carb off, what a swine to get out! Not looking forward to getting it back in. I will give it a good clean and may invest in some new diaphragms. At the top of the carp there is a connector for a tube. On the parts diagram it is labelled oil breather joint. Is there something connected here. There was nothing on mine and being open it was full of crud right through to the top of the diaphragm. Any thoughts?

My Evo 2013 3004T has started putting out black smoke at higher revs. I think the carb could probably do with an overhaul as it has not been looked at since I got the bike. Does anyone know if there is a rebuild kit available for this carb? Also, any tips for completing the work? Thanks

I've come across a number of prople in the same position. Has your £20 payment for the licence gone though? If you delete the licence and reapply you may find you are charged a second time. Try emailing Kisty at the ACU - kirsty@acu.org.uk Can't promise but she has helped me out with a few queries. Stuart

Hi You need to ensure you have expiry dates of 31/12/23 for Club membership (look under the menu Club & Team Affiliations), Trials Registration (look under ACU Competitor Licences) and ACU membership (under Member Details). Your ACU Membership need to have a Membership Type of Trials Competitor. If not your licence is invalid, and you cannot enter events on-line. You can change these by using the Actions (three dots) on th right. Bear in mind there are two ways to renew your Club membership. One where you pay online and the other where you pay the club direct and then confirm membership via sport 80 (email goes to the Club to approve). I have found that a fair number of riders are using the second of these even though they have not paid the club. The Club can approve or reject these requests, but there are no contact details provided. So, if a request is rejected there is no way the Club can advise the rider where they have gone wrong. You can join our Club (Eboracum Motorcycle Club) on-iine - https://eboracummotorcycleclub.sport80-clubs.com/memberships/177/join A bargain at just £10! Stuart

If I log on as a Club official I can see a list of Club members (affiliates). Next to some are labels showing, ADD, PREPAID and AUTORENEWAL. I wonder if these are a flag to indicate that these Member's Details (ACU Membership) should be updated for 2023, possibly at the year end. I also have a few Club members whose ACU Membership status already shows 2023, but I can't see why these are different from the rest. The void created by the lack of information from the ACU is being filled by rumour and speculation. Some of it from me I think!