This my new purchase hopefully get out at weekend, I have some filter material from my old marine set up I think and found that clear filter cover and one the goes under mudguard so will purchase them when I get back
Ok thanks for the heads up. I can get some foam from work I think, anyone have a link to this airbox cover?
Looking forward to riding it as not been out on it yet. Rear brake pedal bush a little worn/ loose and the throttle seems a little stiff so need to look into that, prob a easy fix but I have noticed a crack in the outer sheath of the throttle cable so maybe it's letting water in? Either way a cheap fix what ever the issue is.
I will take the bike out and try it with out then with and see the difference. I have given the bike a quick look over and it needs a bush in the rear brake pedal, and a new throttle cable as the outer sheath has split, also need rear wheel bearings other than that it's good. The tick over is a little fast but it's not been ridden for a while so might settle down. I haven't looked but I read a review on the 2011 and it said it had a drain on the air box? Cheers
Thanks guys, I have just bought a 2011 beta evo as well so my brother in law having the mont for a while as he is without a bike, I will order a rear as soon as I get some cash
Thanks for replies I have been looking but can't find any rears, I assumed you could still buy them, if you can use 4rt rears that would be good but knowing how would be nice. I am looking at buying a newer bike now and keeping the old 315r for a spare or project bike
I have just purchased a 2002 315r. I haven't taken it out as yet but was just thinking can you still buy plastics for them? Had a quick look on the Internet and most shops say there discontinued?
Also on another topic is elf the best gear oil to use? If so what is the interval between oil changes? I don't ride like a motor cross rider and I am only a novice, I used to use Gp10 in my beta and changed every 3-5 rides out but read the old girls only like elf?
Regarding the tyre touching the mudflap, it is definitely not to do with the tyre but with the sprockets and chain.
The REV-3 had limited tyre clearance originally and flaps/shock absorber bottoms were scuffed. The clearance seems adequate when stopped, but when spinning, centrifugal force distorts the tyre profile so closing the gap!
I would think that standard gearing would be 11/41 but you can check on the Beta UK website under the technical specification of your bike. If you have larger front or rear sprockets with a standard chain the gap will be smaller to get the correct tension.
If you sprockets are correct, just get a half link -which is actually 1.5 links with 2 split links. This lengthens the chain enough for clearance and correct chain adjustment -this was definitely the case with Rev-3 200s where they used 11/42 sprockets.
Performance wise, compression comes down to rings, if it doesn't rattle a lot, the piston is most likely ok but maybe some new rings would help.
hope this helps
Thanks for the reply,
It doesn't seem to rattle really so maybe only the rings need doing? This will give it more go I suppose?.
I will check the gearing now and post the results. My mates does have 11/41 so that could account for the gap difference but 1 tooth would that make all the difference, prob about 1" extra gap?
rubber flaps last 3 trials at best. i did buy some rubber that was thicker and cut my own.
a piston and rings might be worth the investment if your bikes done a fair bit of work.
I heard the 08 carb was better, I may put a new piston in soon, what's the best/easiest way of checking?, the rubber flap should last years it's only worn so quick cos it's touching the rear tyre, my mates don't?
If you have a `07 and his was an `08 that is why. The `08 ran better. Now turnin` the tire trick is only the fresher nobs are now closer to the rubber?
I thought it just gave you a new edge? Thus giving better grip?
Could be ignition timing ,carburation..re rubber flap either swing arm shrunk or chain different tension or thats why the original was worn out.
Thought it could be ignition timing, just wondered if anyone had any pics of what to look for, carb wise it seems to run fine, might take carb off and clean jets etc, does any one have any standard carb settings to check against?
The rear tyre does seem close like the chain is tensioned to much or to short, don't think swing arm shrunk! Ha ha. I am sure it hasn't always been like that, anyone no how many links the chain should be and how should the chain be tensioned ie chain block 25mm from swing arm?
Just a quick couple of questions, I have freshened my bike up over winter, with some new parts etc ready for the new season, and need a few things pointing out.
1. My mate has just bought a 08 rev 3 250 and his seems to have more compression and feels more about it, both have fly wheel weights on but his noticeabley crisper, any idea's? is it time for a piston change?
2. Also I turned my tyre round to get abit more life out of the tyre and fitted a new shock guard rubbe flap, I have put the wheel back on and now for some reason the rear wheel is nearly touching the swingarm and the rubber flap has worn after three trials. The chain is the same? Any ideas??
I might be being thick and if so point it out nicely! Ha
The Domino grips are probably the toughest on the market, they have a soft outer so they are nice on the hands and the inner is made of a much harder compound so they don't get damaged as easy and even when they do they stay stuck on the bars.
They are more expensive than the Renthals but they do last longer so they may work out cheaper in the long run.
Also do you know Renthal grips come in 3 different compounds, soft, medium and hard, most people use the medium. If you hands can take it the hard compound should take a bit more abuse.
Hope this helps.
cheers for the response Chris, i have just placed a order with you for some bits and bobs, shame i could of ordered some of those domino grips and given them a try!
will try some soon and give them a go! i dont suffer to much with my hands apart from getting cramp/arm pump so eventually cant hold on!
As the post states really, Which hanle bar grips do people prefer? I use a renthal trials grip which i like but its the only one i have tried. I tend to crash a fair bit and go through a fair few sets,is there a better grip out there which is maybe a little tougher?
2 of my mates have them they seem good bikes! I had a go and they seemed smooth and powerful, not 4RT power but good all the less plenty of traction to!
and go through a fair few sets,is there a better grip out there which is maybe a little tougher? 
Video Of Mates Messing About At Various Location
in Trials Videos
Posted
Good vid buddy that's what I like about trials having a laugh