Hi. I have reset the fuel levels, they were too low. Much better but still too lean. Does anyone have any suggested jet sizes for a straight though exhaust with K&N Filters?. One of the UK Yamaha dealers has offered a Starter Sprag Clutch for £235 is that OK?

Vielleicht hier auch noch fuer die deutsche Fraktion, da gibt's ja moeglicherweise auch jemand, der mir weiterhelfen kann  :

Gibt es irgendeine bessere Methode, den Benzinstand in der Schwimmerkammer zu ueberpruefen als mit den Vergasern am Motor? Ich finde das so unglaublich laestig, sie auszubauen, den Schwimmer zu verstellen, wieder einzubauen (kein Spass!), nur um sie dann wieder rauszureissen, weil's immer noch nicht stimmt!

Heissen Dank fuer die - wahrscheinlich total naheliegende - Loesung des Problems!


Holger

I think I have found the answer to my starter sprag clutch problems and hope this will help others.
Later Virago's had much better starting. I am told that the  introduction of a four pole starter motor plus the following lower geared Sprag Clutch changes helped.
The TR1 Sprag Clutch has 19 teeth (5A8 15570 00 00) This goes with a 35 tooth Ider Gear.
After 1986 a mod was made for easier cold starts.
A Sprag Clutch with teeth reduced to 18 (3LP 15570 00 00) and Idler Gear teeth increased to 36.
These parts must be used in sets. An expensive conversion but 2nd hand parts from scrap yards for later Virago's
are a lot cheaper.

I have opened the case on my old sprag clutch and all that was wrong was that a roller spring had tangled with the main shaft and become bent.
I have straightened the spring, reassemble the case and it works well. So I will now TIG weld the case and keep it as a spare.
I will let you know if the Virago parts are worth fitting in a few weeks time when the bike is back on the road.
Gerry