The Harley carbs are too big for the 1835 as I tried one.The throat is too big but a smaller venturi model should do fine. Also just solved a problem on my 2100 that somebody might appreciate.Noticed a noise at idle rpm that got bad enough to check out.Found the aluminum flywheel loose.Removed the engine and found the bushings on the dowel pins worn out,making the noise.After much thought and wondering how to replace the bushings I contacted Revmaster by email.Without making a novel of this story let's just say I got some really good service,sent the flywheel to them and now it's back good as new.Tommy W.