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Type: Posts; User: BobV1700

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  1. Thank you Cardfan, Bob V

    Thank you Cardfan,

    Bob V
  2. Thanks all, appreciated. A few things to look at,...

    Thanks all, appreciated. A few things to look at, I'll get back to you shortly with any improvements .

    Bob V
  3. Thanks Matt, I'll try the extensions and...

    Thanks Matt,

    I'll try the extensions and suggested needle settings,

    regards Bob V
  4. Lifer, The 'stock' needle settings as per...

    Lifer,

    The 'stock' needle settings as per manufacturer recommendations are 1.50 (turn/ minutes o'clock) for low needle and 1 .10 for high needle. I leaned the bottom out today to about 1.45, but...
  5. MVVS 35cc, large amount of thick black oil residue.

    I have an MVVS 35cc and a OS 33cc GT with very similar running hours, both run great with few problems. However, I find that MVVS produces significantly more exhaust residue than the OS. I run both...
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    Build progressing Mark.....Thanks, Bob.

    Build progressing Mark.....Thanks, Bob.
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    Can anyone help with the location of the c of g...

    Can anyone help with the location of the c of g for the Pentathlon Evo please?. I'm currently building a Pentathlon and hoping to power it with the OS 33GT.

    Many thanks Bob V
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    Just to update this thread, I've now managed to...

    Just to update this thread, I've now managed to get the engine running properly again and am almost certain that the problem all along was caused by the leaky valve cover which was allowing air into...
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    As far as I can tell Dave everything went back...

    As far as I can tell Dave everything went back together as per normal, there are only a couple of critical items to speak of, the two timing marks which essentially are 6 and 12, and setting them at...
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    Dave, I have now put everything back together...

    Dave,

    I have now put everything back together again found nothing obvious to report. The bearings are good, the conrod as new with both ends showing no wear on the bushings, the cylinder is...
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    Dave, Prior to stripping down I did indeed...

    Dave,

    Prior to stripping down I did indeed check the regulator and assembly as you suggested, it appeared to be fine with no blockage, and was fitted correctly. The rocker arms and push rods...
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    Dave, Stripped the engine right down to parts...

    Dave,

    Stripped the engine right down to parts except for the valve's and springs/tiny clips, which appear to be fine with little carbon build up, seats look good and same spring compression both...
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    Thanks Dave. The fuel lines, clunk, filter and...

    Thanks Dave. The fuel lines, clunk, filter and return valves, regulator set just in from flush, and fuel appears to be flowing properly into carb. Stripped carburettor down last night and found...
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    YS110s no response to throttle.

    Anyone help with this one please. My 110s had been stored for about 8 months after airframe problems which I recently repaired. Anticipating possible sticky carb or regulator problems I bench ran...
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    Air filter for OS 33GT?

    I'm thinking of fitting an air filter to my OS 33GT, would anyone recommend a particular brand or fitting please?


    thanks Bob V
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    Thanks Mark...........

    Thanks Mark...........
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    mounting 35cc gas engine

    Would 5 mil blind nuts be ok for mounting a OS 33 GT to 8 mil plywood firewall please?

    thanks for any input, Bob
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    RE: Kyosho Osmose datum line..?

    Thanks gents...........its all helping.&#160;<div>David.........Regarding the longeron/datum line the change in trim color (as above) seems to follow the point you make as well.<div>Thinn.........Based on...
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    RE: Kyosho Osmose datum line..?

    Thanks David..........I suspect yes.<div>
    </div><div>
    </div><div>Regards Bob V</div>
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    RE: Kyosho Osmose datum line..?

    Teo.....<div>
    </div><div>Thanks for that. How would I ascertain the fuselage datum line without plans? I suspect that the fuselage covering trim line will run&#160;parallel&#160;to it as the change in...
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    Kyosho Osmose datum line..?

    I'd appreciate any thoughts on this one............Due to the engine quitting just after take off I ended up tip stalling my Kyosho Osmose whilst trying to avoid the usual obstacles. The resultant...
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    Evolution 40cc Walbro carb details.

    Anyone know the actual Walbro carb reference number for the Evolution 40cc gas engine, possibly WT 561 or similar?

    Thanks Bob V<br type="_moz" />
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    Exhaust residue.....

    I have a 35cc MVVS gas engine that's only had about 4 hrs running in total and is still slighlty rich. I'm using a 1:40 oil/petrol ratio and the engine appears to be running well but the exhaust...
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    RE: Welcome to Club SAITO !

    Saito 82a replacement bearings.......................<div>
    </div><div>My 82a is starting to feel a little rough and I suspect that the rear bearing needs replacing, and was thinking I might replace...
  25. converting YS 160 or 170's from glo to gass?

    <span style="font-family: Verdana, Arial; font-size: 13px; background-color: rgb(251, 252, 255); ">Does anyone have any experience of converting a YS from glo to gas? Given the price of decent 20/20...
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