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Showing results for tags 'dhla40h'.
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I would like to speak with you directly via email or something. I have a motor being built, it was supposed to be finished a month ago (the bastards), and now I have two weeks before an event that I host. Motor should be ready to install this week. I have a set of DHLA40-H that have very had little road time on them(2.0 alpha) with the original owner, and look to be in excellent condition.. I was the first to turn any screws. I would like to talk to you about baseline set up... jets, etc. I have all the numbers that I could find from the set now. Just need input. Jetting recomendations, best practices for syncing the H type, etc. P.S. While I have the basic knowledge...I'm a total side draft noodie. And I'm short on time.. Can you shoot me a message at jasontgipson@gmail.com??? Thanks so much. M10 specs: 47mm intake and 39mm exhaust valves. (both 1mm oversided) 292 duration cam 9.5 compression ratio Shorty header, not long tube. 2" exhaust pancake filters on carbs TIA -Jason
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Hello, I joined this forum because i seen many of you have success in using dellorto carbs and i have some problems with my setup which i cannot figgure out. Engine is a 1394cc with rmp range up to 6000, i use a single dellorto 40H with jettings i think factory from a giulietta : 58 idle 130 main 180 air corr 7772.11 emulsion tube The troubles which i'm having are: hard starting and lumpy idle (progression phase seems ok) and i assume after progression (i have no rpm counter) if i accelerate hard (more or less) the engine makes a low noise and instead of accelerating it even slows then suddenly it "wakes up" and accelerate quite well.(the hole in acceleration phase is quite big i have to press clutch to rev it up faster then let it go...) I've tried to mod the advance, changed the sparkplugs, plug wires, opened more the idle mixture screw...nothing. Any ideeas please? (excuse my english, it's not my native language)
