I am replacing the RV cloth covered hoses on my 582 Mod 90 engine. The old hoses were rotten and just purchased the new hose from Rotax.

However the hose ID is much smaller than the barb OD's. I was able to get the two on at the reservior (about 3/4 way) with significant effort. They were also lubed up internally with oil. What a struggle. The two on the engine look to be even worse.

Any tricks of the trade here to get them on? Almost looks like I may need to remove the RV coverplate and coils to get at the upper engine case fitting?

Larry S.