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7.5 K&B tuned pipe

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7.5 K&B tuned pipe

Old 10-30-2010, 10:25 AM
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fuma
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Default 7.5 K&B tuned pipe

My son's boat blew over and came up without it's pipe. what would be a good replacement? the one he had curved up around the powerhead. looking for something like that. it's a modded out monster of a k&b 7.5 from ebay ,runs very strong.
Old 10-30-2010, 11:06 AM
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Ron Olson
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Default RE: 7.5 K&B tuned pipe

www.htbboats.com is one of the few places with 7.5 OB pipes.
Tie it on with a music wire (4-40 threaded rod) from one of the engine lugs to the pipe or use braided metal fishing leader line for insurance against loss.
Old 10-30-2010, 11:14 AM
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Default RE: 7.5 K&B tuned pipe

Thanks Ron I'll check with htb about the pipe  I TOLD THAT BOY ( HE'S 24) TO WIRE THAT THING ON THERE.
but you can't make them listen. so now i'll get to buy one for him and not for me.
Old 10-30-2010, 11:59 AM
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Default RE: 7.5 K&B tuned pipe

I've got a 23 year-old so I've been there too many times myself.
Old 11-02-2010, 08:21 AM
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Default RE: 7.5 K&B tuned pipe

orderd a pipe and header from Mark today.
Old 11-15-2010, 04:14 PM
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Default RE: 7.5 K&B tuned pipe

ok, got the htb pipe and header.  can anyone tell me  what  how long it should be? just looking for a starting point.         thanks.
Old 11-15-2010, 11:55 PM
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Default RE: 7.5 K&B tuned pipe

OK, the fun part now. For 7.5's you're going to need about 10-1/2" from the glow plug to the widest part of the pipe. The fun part is getting a correct measurement with all of those turns. Cut off a piece of solder to length, that will make it easier to do.
Old 11-16-2010, 06:48 AM
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Default RE: 7.5 K&B tuned pipe

ok thanks,
Old 03-23-2011, 05:54 AM
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Default RE: 7.5 K&B tuned pipe

 ok I'am stumped we finely had a chance to run with the new pipe. it won't run right . takes off fine, cruises around fine at low speed. when we open it up it blast off. all good right. But when we let off it stops running no sputter just stops. I tried leaner and richer no change.could it be the lsn. carb and tank are clean.oh     we changed to 50% from 30%
Old 03-23-2011, 07:14 PM
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Default RE: 7.5 K&B tuned pipe

Sounds like your pipe could be a bit short, it may be lean as well. What size is the stinger opening on the new pipe ? You may have to add a reducer if it is to large.
Old 03-30-2011, 10:45 AM
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Default RE: 7.5 K&B tuned pipe

jmy2u im from South Africa I need to ask you somethigh through mail can you give me your mail adress
Old 03-31-2011, 08:42 AM
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Default RE: 7.5 K&B tuned pipe

Nitro Boater you can email me direct at [email protected]

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